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# Henan Gaoshan Valves Co., Ltd.

> Professional industrial valve manufacturer and exporter since 1975 with 50+ years of expertise. Certified with CE, API 6D, ISO 9001/14001/45001, and PED. Approved supplier for Sinopec, CNPC, and State Grid. Exporting high-performance fluid control equipment to 30+ countries with 100% pre-shipment inspection and 24/7 global technical support.

## Sitemaps
- [XML Sitemap](https://gaoshanvalves.com/sitemap_index.xml): Includes all crawlable and indexable pages.

## Posts
- [Xingyang Federation of Trade Unions Brings Cultural Performance to Gaoshan Valves](https://gaoshanvalves.com/xingyang-trade-union-cultural-performance-gaoshan-valves/): On October 12, 2026, the Xingyang Federation of Trade Unions brought a cultural performance to Henan Gaoshan Valves Co., Ltd., a valve manufacturer in Henan, China.
- [DN1400 Half Ball Valve Delivered & DN500 Globe Valve Success](https://gaoshanvalves.com/gaoshan-valve-newsletter-july-2026/): July 2026 Gaoshan Valve newsletter: DN1200 & DN1400 half ball valves delivered, Kazakhstan & Russia customers visited, Q2 meeting and factory news.
- [Gate Valves for Fire Protection Systems: Applications, Features and Benefits](https://gaoshanvalves.com/gate-valves-fire-protection-systems/): Fire gate valves serve as isolation valves for fire water pipelines. GAOSHAN supplies certified fire-rated gate valves with low flow resistance & tight shut-off for fire pump rooms, risers and municipal fire networks.
- [Gate Valve vs Globe Valve: How Water Utilities and Chemical Plants Choose](https://gaoshanvalves.com/gate-valve-vs-globe-valve-2/): Gate valve vs globe valve explained: flow control, pressure drop, duty cycle and which valve fits water mains vs chemical plants.
- [Lug vs Wafer Butterfly Valve: What’s the Difference and How to Choose the Right One](https://gaoshanvalves.com/lug-vs-wafer-butterfly-valve/): Lug butterfly valves and wafer butterfly valves are both quarter-turn valves that sit between two pipeline flanges, and from the outside they look almost identical — same slim body, same rotating disc, often the same actuator. The difference is in how each body is held in the line. A wafer valve is clamped by the two pipe flanges and depends on them for support. A lug valve is bolted to each flange independently, through threaded lugs machined into its own body. Specifying the wrong one at a pump discharge, a tank outlet, or the end of a line is one of the most common — and most expensive — mistakes in piping design, because it decides whether a maintenance team can open one side of the pipeline without draining the other.
- [Gaoshan Valve Completes 2026 PED Module H Annual Surveillance Audit](https://gaoshanvalves.com/ped-module-h-surveillance-audit/): Direct answer: Gaoshan Valve passed its annual PED 2014/68/EU Module H surveillance audit on September 10–11, 2026, with auditors from an EU Notified Body on site. Under Module H, full-quality-assurance surveillance is required every year to keep the CE certificate valid for pressure-bearing valves shipped into the European Union market.
- [Golden Autumn Scholarship Program: Gaoshan Valves Helps Village Students Achieve Their College Dreams](https://gaoshanvalves.com/2026-gaoshan-scholarship-program/): On August 21, 2026, the Chairman of Henan Gaoshan Valves Co., Ltd. — who also serves as Party Secretary of Gaoshan Village — hosted a scholarship award ceremony at the company for local students who were admitted to full-time undergraduate programs this year. A total of RMB 46,000 (approx. USD 6,400) in scholarships was distributed, and the students were given a guided tour of the company's exhibition hall and production facilities, tracing the company's development since its founding in 1975.
- [Globe Valve Flow Direction: Correct Installation for Reliable Sealing & Easy Maintenance](https://gaoshanvalves.com/globe-valve-flow-direction/): Direct answer: A globe valve must be installed with media entering from below the disc (low inlet) and exiting above (high outlet). This "low-in, high-out" orientation keeps the bonnet and stuffing box isolated from line pressure when the valve is closed — improving sealing reliability, reducing external leakage, and allowing packing replacement without draining the line.
- [Zhengzhou Business Leaders Visit Gaoshan Valve’s Henan Gate Valve Factory](https://gaoshanvalves.com/zhengzhou-business-leaders-visit-gaoshan-valve-factory/): On August 5, 2026, leaders from Zhengzhou's "Three Associations" (San Hui) and representatives from member enterprises toured the gate valve manufacturing facility of Henan Gaoshan Valve Co., Ltd., reviewing the company's 50-year manufacturing history, R&D output, and production capacity.
- [How Does a Gate Valve Work? A Complete Technical Guide](https://gaoshanvalves.com/how-does-a-gate-valve-work/): This guide breaks down the gate valve working principle, its core components, sealing mechanisms, and the most common types you will encounter in the field. Whether you are an engineer, procurement officer, or simply researching industrial valves, this article will give you a clear, practical understanding.
- [Gate Valve vs Globe Valve: What’s the Difference and How to Choose the Right One](https://gaoshanvalves.com/gate-valve-vs-globe-valve/): Gate valves and globe valves are both quarter-turn-free, handwheel-operated valves that look similar from the outside — flanged body, rising or non-rising stem, a handwheel on top. But inside, they solve two different problems. A gate valve is built to fully open or fully close a straight flow path with minimal resistance. A globe valve is built to throttle and regulate flow, at the cost of a higher pressure drop. Installing the wrong one in the wrong location is one of the most common — and most expensive — mistakes in piping design, leading to higher energy consumption, premature valve wear, or both.
- [How to Choose the Right Disc Material for Butterfly Valves: A Buyer’s Guide](https://gaoshanvalves.com/butterfly-valve-disc-material-guide/): Selecting the correct disc material is one of the most overlooked — yet most critical — decisions when specifying a butterfly valve. The disc material directly affects corrosion resistance, seat life, torque requirements, and long-term maintenance costs. As a manufacturer serving water treatment, marine, chemical, and industrial customers worldwide, Gaoshan Valves is often asked: aluminum bronze, 316L stainless steel, or 2205 duplex stainless — which is right for my project? This guide breaks down the differences so buyers can specify with confidence.
- [Ductile Iron Valves: Complete Technical Guide for Industrial Applications](https://gaoshanvalves.com/ductile-iron-valves-technical-guide/): In gray iron, interconnected flake graphite creates microscopic leakage channels. In ductile iron, isolated spheroidal graphite does not form continuous leak paths, giving the valve body superior pressure-tight sealing. Ductile iron valves cover pressure ratings from PN10 to PN40 (Class 150 to Class 300), meeting the vast majority of industrial and municipal pipeline requirements.
- [CN224315503U Fully Sealed Butterfly Valve Patent: Double-Stage Sealing Solves High-Pressure & Bidirectional Leakage](https://gaoshanvalves.com/fully-sealed-butterfly-valve-patent/): Patent Info Patent Name: A New Fully Sealed Butterfly Valve Grant Publication No.: CN224315503U Application Date: July 1, 2025 Grant Date: June 2, 2026 Patent Holder: Henan Gaoshan Valve Co., Ltd.
- [Gaoshan Valves Named Official Drafting Unit of China’s National Standard GB/T 12234-2019 for Bolted Bonnet Steel Gate Valves](https://gaoshanvalves.com/gaoshan-valves-gbt-12234-2019-gate-valve-standard/): Henan Gaoshan Valves Co., Ltd. was one of more than 30 manufacturers and research institutes selected to help draft GB/T 12234-2019, "Bolted Bonnet Steel Gate Valves for Petroleum and Natural Gas Industries" — the current national standard governing gate valve design, materials, and testing in China. The standard, led by the Hefei General Machinery Research Institute, took effect on May 1, 2020, replacing the 2007 edition.
- [When the Power Goes Out: Why Mechanical Check Valves Still Belong in Every Pump Room](https://gaoshanvalves.com/mechanical-check-valve-pump-room-power-failure/): A quiet design trend has been gaining traction in modern HVAC and district-heating pump rooms: removing the check valve from the pump discharge line and replacing it with a motorized valve electrically interlocked to the pump — opening as the pump starts, closing as it stops.
- [Endless Progress, Leading 2026 — Henan Gaoshan Valve Co., Ltd. Successfully Holds Sales Business Promotion & Training Conference](https://gaoshanvalves.com/sales-training-2026/): 🏭 About Gaoshan Valves: Henan Gaoshan Valve Co., Ltd. is headquartered in Gaoshan Town, Xingyang, Zhengzhou, Henan Province. With a registered capital of RMB 100.6 million and a production facility spanning 120,000 m², the company employs nearly 500 staff. Gaoshan is a Standing Council Member of the China General Machinery Industry Association (Valve Division), and holds ISO9001, ISO14001, OHSMS45001, API 6D, CE, and Special Equipment Manufacturing (TS) certifications. Its comprehensive product portfolio covers gate valves, globe valves, safety valves, butterfly valves, ball valves, steam traps, pressure reducing valves, check valves, plunger valves, balancing valves, strainers, metallurgical valves, and gas valves—serving customers across more than 30 provinces in China and exported to Germany, the United States, West Asia, the Middle East, and beyond.
- [Industrial Valve Painting & Color Coding: The Complete Standards Guide](https://gaoshanvalves.com/valve-painting-color-coding-guide/): Valve color coding is one of the most misunderstood aspects of industrial piping systems. Engineers, procurement managers, and field technicians often confuse the two independent color systems that govern valve appearance — leading to costly specification errors, safety risks, and project delays.
- [Gaoshan Valve Conducts Comprehensive Fire Safety Drill to Reinforce Emergency Response Capabilities](https://gaoshanvalves.com/fire-safety-drill-2026/): Full workforce participates in hands-on firefighting training and emergency evacuation exercise at the company's 120,000 m² Xingyang manufacturing complex.
- [DN125 Steam Pressure Reducing Valve Station: Engineered Control for High-Pressure Steam Networks](https://gaoshanvalves.com/dn125-steam-pressure-reducing-valve-station/): The DN125 Steam Pressure Reducing Valve Station (PRV Station) is a fully integrated skid assembly designed and manufactured to address exactly this challenge. Combining a steam separator, primary isolation valves, a Y-type strainer, a spring-loaded pressure reducing valve, a safety relief valve and instrumentation into one pre-engineered unit, the station eliminates the complexity and risk of field-assembled pressure management systems.
- [Strategic Partnership Signed: Henan Gaoshan Valve and Russian Company LLC «AKMAN» Deepen China-Russia Industrial Valve Cooperation](https://gaoshanvalves.com/gaoshan-valve-akman-russia-signing-2026/): On April 20, 2026, Henan Gaoshan Valve Co., Ltd.—an API 6D and CE certified industrial valve manufacturer founded in 1975—held an official signing ceremony with Russian company LLC «AKMAN» at its Zhengzhou headquarters. The agreement formalizes long-term cooperation on the supply of industrial valves, including gate valves, butterfly valves, and steam traps, and marks a further step in Gaoshan Valve's expansion into the Russian and broader Eurasian market.
- [How Working Environment Affects Steam Trap Performance](https://gaoshanvalves.com/steam-trap-working-environment-performance/): In industrial steam systems, the steam trap functions as a silent guardian — it automatically discharges condensate and non-condensable gases while preventing live steam loss, ensuring the system operates at peak thermal efficiency. However, one critical variable is often overlooked: the working environment plays a decisive role in steam trap performance and service life. Selecting the right steam trap for your specific operating conditions — and understanding how environmental factors impact reliability — is essential for any facility manager or maintenance engineer.
- [Gaoshan Valve Holds Q4 2025 Sales Promotion Meeting for Market Growth](https://gaoshanvalves.com/gaoshan-valve-q4-2025-sales-meeting/): Luoyang, China – On October 2, Gaoshan Valve held its Q4 2025 Sales Promotion Meeting at Luoyang Fengxiang Hotel. Chaired by Party Branch Secretary Li Haitao, the meeting gathered company senior leaders, department heads and all sales managers to summarize quarterly work, analyze market conditions and clarify sales strategies for the fourth quarter.
- [Gaoshan Valves Passes GB/T 29490-2023 IP Compliance Audit](https://gaoshanvalves.com/gaoshan-valves-passes-gbt-29490-2023-ip-audit/): Zhengzhou, Henan, China — September 3, 2025 — On September 3, an expert panel from Beijing Wankun Certification Services Co., Ltd. conducted the 2025 edition-transition surveillance audit of Gaoshan Valves' intellectual property (IP) compliance management system. The audit confirmed the company's IP framework meets GB/T 29490-2023 requirements and continues to operate effectively across all business functions.
- [Gaoshan Valve Convenes 2025 Q3 All-Staff Meeting, Charts Course for Year-End Sprint](https://gaoshanvalves.com/gaoshan-valve-q3-2025-all-staff-meeting/): September 1, 2025 — Henan Gaoshan Valve Co., Ltd., a leading industrial valve manufacturer in China with five decades of expertise, held its 2025 Third Quarter All-Staff Meeting on September 1st, bringing together company leadership and employees to review performance across the first three quarters and align on strategic priorities for the final stretch of the year. The meeting was chaired by Li Haitao, Secretary of the Company's Party Branch.
- [Pursuing Zero Defects: Gaoshan Valves Convenes August Quality Analysis Meeting to Spearhead September “Quality Month” Initiatives](https://gaoshanvalves.com/%e8%87%aa%e5%8a%a8%e8%8d%89%e7%a8%bf/): Date: August 31, 2025
- [Beating the Summer Heat: Gaoshan Valves Maintains Full Production Momentum with a 15% YoY Sales Surge in August](https://gaoshanvalves.com/beating-the-summer-heat-gaoshan-valves-maintains-full-production-momentum-with-a-15-yoy-sales-surge-in-august/): Date: August 13, 2025
- [Gaoshan Valves Successfully Passes API Annual Surveillance Audit, Affirming International Quality Standards](https://gaoshanvalves.com/gaoshan-valves-successfully-passes-api-annual-surveillance-audit-affirming-international-quality-standards/): Date: July 25, 2025
- [Gaoshan Valves Welcomes Vietnamese Delegation for On-Site Inspection and Cooperation Talks](https://gaoshanvalves.com/gaoshan-valves-welcomes-vietnamese-delegation-for-on-site-inspection-and-cooperation-talks/): On March 12, 2025, a delegation of valued clients from Vietnam visited Gaoshan Valves for an extensive on-site inspection and business discussion. This visit marks another significant step in our ongoing efforts to expand our footprint in the international industrial market.
- [Gaoshan Valves Accelerates Rectification and Quality Upgrades Following API Initial Audit](https://gaoshanvalves.com/gaoshan-valves-successfully-passes-api-recertification-audit/): From March 11 to 12, 2025, Gaoshan Valves underwent its initial certification audit by the American Petroleum Institute (API).
- [Celebrating the Lantern Festival: Traditional Lion Dance Brings Prosperity to Gaoshan Valves](https://gaoshanvalves.com/celebrating-the-lantern-festival-traditional-lion-dance-brings-prosperity-to-gaoshan-valves/): The Lantern Festival, a significant Chinese traditional holiday marking the first full moon after the Spring Festival, symbolizes reunion and happiness. To celebrate this joyous occasion, Gaoshan Valves invited the "Jiangtou Lion Dance" team—a project recognized as a representative of intangible cultural heritage in Zhengzhou—to perform at our facilities, offering every employee an up-close experience with traditional culture.
- [Gaoshan Valves Holds 2024 Annual Work Summary and Awards Ceremony](https://gaoshanvalves.com/gaoshan-valves-holds-2024-annual-work-summary-and-awards-ceremony/): On January 19, 2025, Gaoshan Valves held its 2024 Annual Work Summary and Awards Ceremony. The entire team gathered to review the achievements and challenges of the past year and to outline strategic goals for 2025.
- [Gaoshan Valves Shines at the 2nd Valve Expo in Xingyang, China](https://gaoshanvalves.com/gaoshan-valves-shines-at-the-2nd-valve-expo-in-xingyang-china/): As a leading manufacturer in the industry, Gaoshan Valves was proud to participate in this grand event. During the expo, we showcased our latest innovative product lines, including high-performance large-diameter valves, which drew significant attention from attendees.
- [Committed to Green Manufacturing: Gaoshan Valve’s Advanced Foundry Upgrades Pass Rigorous Environmental Compliance Inspection](https://gaoshanvalves.com/gaoshan-valve-foundry-environmental-compliance-upgrade/): On December 22, 2019, a comprehensive on-site environmental inspection was conducted at the casting division of Henan Gaoshan Valve Co., Ltd. The inspection team consisted of Director Chen from the Municipal Bureau of Industry and Information Technology, senior environmental protection experts, Captain Yan Yubin from the Environmental Protection Inspection Squadron, and representatives from third-party environmental evaluation agencies.
- [The Evolution of Industrial Safety Valves: From Industrial Revolution to Modern Overpressure Protection](https://gaoshanvalves.com/industrial-safety-valve-evolution-manufacturer/): As a critical category of automatic valves, the industrial safety valve remains closed under normal operating conditions. However, when the pressure within a piping system or pressure vessel exceeds a predetermined limit, the safety valve automatically opens to discharge a specific amount of fluid or gas, preventing catastrophic equipment failure.
- [Headline: Fostering the Artisan Spirit: Gaoshan Valves Honors Winners of the 2nd Xingyang Vocational Skills Competition](https://gaoshanvalves.com/gaoshan-valves-cnc-skills-competition/): HHenan Gaoshan Valve Co., Ltd. is proud to announce that several of our skilled engineers achieved top honors at the 2nd Xingyang Vocational Skills Competition (CNC Turning Category), an event centered on the theme of "Advancing the Artisan Spirit."
- [Driving Industrial Evolution: Henan Gaoshan Valve Co., Ltd. Accelerates Transformation Toward High-Precision and Smart Valve Manufacturing](https://gaoshanvalves.com/gaoshan-valve-industrial-upgrade-smart-manufacturing-seminar/): On September 24, 2017, Henan Gaoshan Valve Co., Ltd. was invited to participate in a highly specialized technical seminar titled "Xingyang Traditional Industrial Upgrading Series: Valve Industry Session."
- [Unstoppable Team Spirit: Henan Gaoshan Valve Co., Ltd. Triumphs as Champions in the 5th Annual “Gaoshan Valve Cup”](https://gaoshanvalves.com/gaoshan-valve-wins-annual-basketball-tournament-championship/): – On September 16, 2017, the highly anticipated 5th Annual "Gaoshan Valve Cup" Basketball Invitational Tournament officially kicked off at the dedicated sports complex of Henan Gaoshan Valve Co., Ltd. True to the grit, precision, and high energy that define our manufacturing floor, the Gaoshan Valve team demonstrated unparalleled synergy throughout the event.
- [Global Recognition: Ministry of Commerce (MOFCOM) Delegation of 78 International Officials Visits Gaoshan Valves](https://gaoshanvalves.com/mofcom-international-officials-delegation-visit-gaoshan-valves/): – In a milestone event aligning with China’s "Belt and Road" Initiative, Henan Gaoshan Valve Co., Ltd. proudly hosted a high-level international delegation organized by the Ministry of Commerce (MOFCOM) of the People's Republic of China.
- [Expanding Global Footprint: Gaoshan Valves Invited to Ethiopia-Xingyang “Belt and Road” Procurement Conference](https://gaoshanvalves.com/gaoshan-valves-belt-and-road-ethiopia-conference/): – In a significant move to deeply implement the national "Belt and Road" Initiative, accelerate international industrial capacity cooperation, and promote domestic enterprises on the global stage, the Xingyang Municipal Government hosted the prestigious Ethiopia-Xingyang Investment and Procurement Briefing Conference.
- [Forging Ahead with Unity: Gaoshan Valves Celebrates the 28th Annual Employee Sports Games](https://gaoshanvalves.com/gaoshan-valves-28th-annual-employee-sports-games/): – To welcome the new year with passion, energy, and shared determination, Henan Gaoshan Valve Co., Ltd. successfully organized its 28th Annual Employee Sports Games on January 1, 2017.
- [Prestigious Milestone: Gaoshan Valves Awarded “China Well-known Trademark” Status](https://gaoshanvalves.com/gaoshan-valves-china-well-known-trademark-award/): During the congress, our company was officially recognized with the prestigious "China Well-known Trademark" honor. This distinction is a significant milestone, reflecting our dedication to product quality, technological innovation, and market reputation over the past four decades.
- [Fostering Team Spirit: The 4th “Gaoshan Valve Cup” Basketball Tournament Success](https://gaoshanvalves.com/gaoshan-valve-cup-basketball-tournament-2016/): – On September 15, 2016, the 4th "Gaoshan Valve Cup" Basketball Tournament officially tipped off in Xingyang, Zhengzhou.

## Pages
- [Contact](https://gaoshanvalves.com/contact/): CONTACT US
- [News](https://gaoshanvalves.com/news/): 可以发布公司动态、产品知识、案例复盘和常见问题。
- [Services](https://gaoshanvalves.com/services/): OUR SERVICES
- [About Us](https://gaoshanvalves.com/about/): ABOUT US
- [Home](https://gaoshanvalves.com/): INDUSTRIAL VALVE MANUFACTURER
- [Gate Valve](https://gaoshanvalves.com/gate-valve/): New Linghang Rebuilt
- [Valve Model Decoder](https://gaoshanvalves.com/valve-model-decoder/): if (!TYPE) return null;
- [Butterfly Valves](https://gaoshanvalves.com/butterfly-valve/): FACTORY-DIRECT BUTTERFLY VALVES
- [Steam Traps](https://gaoshanvalves.com/steam-traps/): FACTORY-DIRECT STEAM TRAPS
- [Factory Audit](https://gaoshanvalves.com/factory-audit-page/): Since 1975, Henan Gaoshan Valves Co., Ltd. has manufactured CE, API 6D and ISO 9001/14001/45001 certified valves for petrochemical, power, water treatment and HVAC customers in 20+ countries. An approved supplier to Sinopec and CNPC.
- [Business License](https://gaoshanvalves.com/business-license/): Business License & Company Registration Verification
- [Company Timeline](https://gaoshanvalves.com/company-timeline/): As Gaoshan Valve Factory expanded steadily, we matured production capacity for steam traps, globe valves, check valves, blowdown valves and gate valves.The official “Gao Shan” trademark was registered on October 31, 1979.
- [Thank You](https://gaoshanvalves.com/thank-you/): Thank You for Your Inquiry!
- [China Distribution Network](https://gaoshanvalves.com/china-distribution-network/): Distributors by region All regions North China East China Central China South China West China Northeast NORTH CHINA Beijing Sales Office 📍 Fentai District, Beijing 📞 010-63476354 👤 Xu Honghai Plumbing & HVAC NORTH CHINA Inner Mongolia — Hohhot 📍 Tongdao North St., Hohhot 📞 13704756967 👤 Wang Yaping Industrial supply NORTH CHINA Hebei — Shijiazhuang 📍 Nan Chang Jie 21, Shijiazhuang 📞 0311-7024311 👤 Fu Qingjie Industrial supply NORTH CHINA Shanxi — Taiyuan 📍 Yifen St 88, Taiyuan 📞 0351-6166168 👤 Wang Yanzeng Industrial supply NORTHEAST Heilongjiang — Harbin 📍 Daowai District, Taigu St 167 📞 0451-8640762 👤 Li Guoqing Oil & gas NORTHEAST Liaoning — Shenyang 📍 Dongling District, Shenyang 📞 024-81916936 👤 Qiao Zongbao Industrial supply NORTHEAST Jilin — Changchun 📍 Huigong Rd, Zhongdong Market 📞 0431-84749080 👤 Wu Haikuan Industrial supply EAST CHINA Shanghai Sales Office 📍 Zhabei District, Pengjiang Rd 432 📞 021-56032983 👤 Du Baomin Chemical EAST CHINA Shandong — Qingdao 📍 Shibei District, Kangding Rd 18 📞 0532-83768664 👤 Fang Yitan Oil & gas EAST CHINA Shandong — Dongying 📍 Dongying District, Beier Rd 218 📞 0546-8797930 👤 Wang Ruifeng Oil & gas EAST CHINA Jiangsu — Nanjing 📍 Mochou Rd 250, Nanjing 📞 025-4467494 👤 Niu Guangwei Power EAST CHINA Jiangsu — Suzhou 📍 Chengbei West Rd 1599, Suzhou 📞 0512-68385289 👤 Ye Zexing Chemical EAST CHINA Shandong — Linyi 📍 Jinqushan Rd 100, Linyi 📞 0539-8367936 👤 Wang Shuwen Industrial supply CENTRAL CHINA Henan — Zhengzhou (Main) 📍 Huayuankou Hardware Market B5-10 📞 0371-65760652 👤 Zhang Shuangjun Water treatmentPower CENTRAL CHINA Henan — Xinxiang 📍 Beigandao Knitting Factory West, No. 356 📞 0373-3387670 👤 Lai Chunfa Industrial supply CENTRAL CHINA Henan — Luoyang 📍 Zhongzhou Zhong Rd 266, Luoyang 📞 0379-63936317 👤 Zhang Linye Oil & gas CENTRAL CHINA Hubei — Wuhan 📍 Jianghan District, Xinhua Xia Rd 110 📞 027-65651291 👤 Fu Yanhui Power CENTRAL CHINA Hunan — Changsha 📍 Furong District, Changsha 📞 0731-2128935 👤 Wang Jifeng Industrial supply SOUTH CHINA Guangdong — Foshan 📍 Chancheng District, Chengbei Market West Gate 📞 0757-82837062 👤 Wang Xinqiang Chemical SOUTH CHINA Guangdong — Dongguan 📍 Wangniudun Town, Dongguan 📞 0769-2189359 👤 Fu Hailiang Industrial supply SOUTH CHINA Guangxi — Nanning 📍 Anjin Hardware Market, Bldg 15 #16 📞 13978140967 👤 Li Guanjun Water treatment WEST CHINA Sichuan — Chengdu 📍 Jinfu Rd 111, West Hardware City Bldg 17 📞 028-82859405 👤 Zhang Deshui Oil & gasChemical WEST CHINA Shaanxi — Xi'an 📍 Zuhong Rd Hardware Market, North Row 39 📞 029-6240308 👤 Shi Xiangqing Oil & gas WEST CHINA Xinjiang — Ürümqi 📍 Alatai Rd 161-2, Ürümqi 📞 0991-3843356 👤 Wu Yinzhong Oil & gas WEST CHINA Xinjiang — Aksu 📍 Meijia Logistics Park A33, Aksu 📞 0997-2528386 👤 Ma Xinzheng Industrial supply WEST CHINA Gansu — Lanzhou 📍 Qilihe District, Liujiaying 1, Lanzhou 📞 0931-2314668 👤 Zhang Bin Industrial supply WEST CHINA Yunnan — Kunming 📍 Caiyun North Rd, Lantian Market B16 📞 0871-3818668 👤 Yang Zhiyong Industrial supply Showing 24 of 150+ authorized dealers across China  ·  Contact us for the full dealer directory ↗
- [Downloads](https://gaoshanvalves.com/downloads/): Qualification Documents Document TitleFormatFile SizeActionQualification Documents (Chinese Version)PDF13MDownload Product Catalog Document TitleFormatFile SizeActionQualification Documents (Chinese Version)PDF46MDownloadCheck Valve Selection ManualPDF3.43MDownloadGate Valve Series ManualPDF8.58MDownloadOperation Manual for S44F-16 & S14F-16 Thermostatic Steam TrapsPDF852KDownloadGaoshan_D71X_Butterfly_Valve_DatasheetPDF177KDownloadGaoshan_D342_Butterfly_Valve_DatasheetPDF193KDownloadGaoshan_D343H_Butterfly_Valve_DatasheetPDF200KDownloadGaoshan_D363H_Butterfly_Valve_DatasheetPDF233KDownloadGaoshan_D371X_Butterfly_Valve_DatasheetPDF175KDownloadGaoshan_D642_Butterfly_Valve_DatasheetPDF182KDownloadGaoshan_D671X_Butterfly_Valve_DatasheetPDF179KDownloadGaoshan_D942_Butterfly_Valve_DatasheetPDF186KDownloadGaoshan_D971X_Butterfly_Valve_DatasheetPDF193KDownload Periodical Document TitleFormatFile SizeActionGaoshan Valve Monthly Report, Issue 1, 2025PDF611KDownloadGaoshan Valve Monthly Report, Issue 2, 2025PDF1.01MDownloadGaoshan Valve Monthly Report, Issue 3, 2025PDF1.10MDownloadGaoshan Valve Monthly Report, Issue 4, 2025PDF991KDownloadGaoshan Valve Monthly Report, Issue 5, 2025PDF0.98MDownloadGaoshan Valve Monthly Report, Issue 6, 2025PDF1,017 KBDownloadGaoshan Valve Monthly Report, Issue 7, 2025PDF954 KBDownloadGaoshan Valve Monthly Report, Issue 8, 2025PDF982 KBDownloadGaoshan Valve Monthly Report, Issue 9, 2025PDF1 MBDownloadGaoshan Valve Monthly Report, Issue 10, 2025PDF1 MBDownload Download Terms & Instructions All documents are official authentic files of Henan Gaoshan Valve Co., Ltd., available only for partners and customers to learn about our products and qualifications.Please contact us for authorization if used for commercial purposes. Updated documents will be promptly released on this page.
- [Certifications](https://gaoshanvalves.com/certifications/): Gaoshan Valves holds internationally recognized certifications and industry qualifications, verifying our manufacturing standards and product quality.
- [Products](https://gaoshanvalves.com/products/)
- [Privacy Policy](https://gaoshanvalves.com/privacy-policy/): Our website address is: https://www.gaoshanvalves.com.

## Products
- [J41H(Y) Type Globe Valve](https://gaoshanvalves.com/products/j41hy-type-globe-valve/): Gaoshan J41H / J41Y is a flanged rising stem globe valve for isolating and throttling water, steam and oil lines — from gray cast iron up to Cr-Mo steel for power-station steam.*T-pattern globe design with parabolic disc — proven throttling and tight shut-off, unlike gate or ball valves*Rising stem gives visible open position and accurate flow control*Seat facing: stainless (J41H) or hard alloy / stellite (J41Y) for severe steam and hydrocarbon service up to 550°C*Body range: gray iron, ductile iron, WCB carbon steel to Cr-Mo steel — PN16 through PN160*Graphite packing rated for hot service; bonnet bolts and packing re-tightenable in service*DN20 – DN300; flanged ends to GB / ANSI B16.5 / EN 1092 on request*Flow direction: medium enters under the disc — arrow on body must match pipe flow
- [Z41T-10 / Z41T-10C Bronze Seat Gate Valve](https://gaoshanvalves.com/products/z41t-10-z41t-10c-bronze-seat-gate-valve/): Gaoshan Z41T-10 / Z41T-10C is a flanged rising stem (OS&Y) wedge gate valve with bronze seat facings, built for water supply, drainage and general industrial isolation service at PN10.*Bronze / brass seat facing on a wedge gate — tight shut-off with good erosion and galling resistance in water duty*Rising stem (OS&Y) design gives positive visual position indication — open height is visible at a glance*Flanged ends to GB/T 12232 (EN 1092 / ANSI flange drilling available on request)*Two body options: Z41T-10 grey cast iron, Z41T-10C carbon steel — PN10 (1.0 MPa) rating*Full-bore flow with low pressure loss; suitable for fully open / fully closed isolation service*Stem nut and packing replaceable in line; standard packing for water service, upgraded packing available on request*Sizes DN40 – DN600 — full dimension and flow tables available on request
- [H42H vertical lift check valve](https://gaoshanvalves.com/products/h42h-vertical-lift-check-valve/): Gaoshan H42H is a vertical lift check valve for upward-flow vertical pipelines — the disc lifts on forward flow and closes by gravity, so there is no spring to fatigue and no actuator to power.•Gravity-loaded disc on a guided stem — automatic non-return protection for pump risers that must not drain back•No spring, no hinge pin, no external power — nothing to fatigue in continuous service•Two bodies cover temperature: H42H-25Q ductile iron to 300°C, H42H-25 WCB cast steel to 425°C•2Cr13 stainless steel disc and seat, lappable in service — PN25 rating•DN40 – DN200; flanged ends (GB / ANSI / EN on request)•Install on vertical pipe with upward flow only — for horizontal lines use H41H lift or H42F silent check valve
- [Single Sphere Rubber Expansion Joint](https://gaoshanvalves.com/products/single-sphere-rubber-expansion-joint/): Gaoshan single sphere rubber expansion joint — a single-arch flexible rubber connector that absorbs pump vibration, structure-borne noise and pipeline movement in one unit.• Single-arch reinforced rubber body: axial extension + compression, lateral and angular movement together• Damps pump and compressor vibration; isolates structure-borne noise• Elastomer matched to service: EPDM, NBR, natural rubber, neoprene or SBR• Swivel flanges in galvanized Q235 or SS304/316/316L — drilled to GB / ASME B16.5 / DIN / EN 1092 / JIS• Burst pressure ≥3× working (3:1 safety factor); vacuum rated to −650 mmHg• No guides, packing or moving metal parts — zero routine maintenance• DN32 – DN5000, PN10 – PN25
- [GL41 Y Strainer (Y-Type Filter)](https://gaoshanvalves.com/products/gl41-y-type-filter/): Gaoshan GL41 is a Y-type strainer (Y strainer) that protects downstream valves, pumps, meters and heat exchangers from pipeline debris.• Angled Y body: low pressure drop, screen lifts out for cleaning without removing the body• 1Cr18Ni9Ti (AISI 304) stainless steel screen; mesh customizable coarse to fine• Standard mesh: water 18–30, oil 40–480, steam 40–90 mesh/cm²• GL41-16Q/25Q ductile iron body to 300°C; GL41-16C/25/40 WCB cast steel to 425°C• PN16 / PN25 / PN40, flanged, DN15 – DN500
- [A28H Spring Full Lift Safety Valve with Lever](https://gaoshanvalves.com/products/a28h-spring-full-lift-safety-valve-with-lever/): Gaoshan A28H is a spring full lift safety valve with lifting lever — a threaded pressure relief valve that pops fully open for rapid, high-capacity overpressure discharge on boilers, compressors and steam lines.• Full lift disc (≥¼ throat diameter) — fast mass relief where low-lift valves can only weep• Lifting lever lets you pop-test the disc on site without dismantling the valve• Set pressure 0.1 – 6.4 MPa across PN10 – PN64, DN15 – DN80 threaded ends• Discharge ≤1.03 × set pressure; reseats tight at ≥90% of set pressure• 50CrVA spring calibrated to your set pressure and sealed — no field adjustment• 2Cr13 stainless disc & seat; ductile iron or WCB body; ≤200 °C for steam, air and water• All-stainless variant for corrosive media available on request
- [A27H Spring Low Lift Safety Valve](https://gaoshanvalves.com/products/a27h-spring-low-lift-safety-valve/): • A27H-10/16Q/16C/25C/40C/64 spring low lift safety valve • A27Y-25/40P/R series for corrosive media applications • Threaded connection, DN15–DN80, working temperature ≤200°C • Discharge coefficient 0.65, opening height ≥1/4 throat diameter • For steam, water, air, and corrosive media overpressure protection
- [A42Y Seal Type Spring Full Lift Safety Valve (PN16/PN25, DN40–DN100)](https://gaoshanvalves.com/products/a42y-seal-type-spring-full-lift-safety-valve/): A42Y Seal Type Spring Full Lift Safety Valve for air, gas, petroleum, water, and non-corrosive media.Available in A42Y-16C, A42Y-16Q, and A42Y-25 modelsEnclosed bonnet with full lift design for high discharge capacity and piped exhaust optionPressure ratings PN16/PN25; sizes DN40–DN100; working temperature ≤300°CWCB cast steel or ductile cast iron body with Stellite hard-faced disc and seat ring
- [A41H Seal Type Spring Low Lift Safety Valve](https://gaoshanvalves.com/products/a41h-seal-type-spring-low-lift-safety-valve/): • A41H-16C / A41H-16Q / A41H-25 seal type spring low lift safety valve • PN16/PN25, DN40–DN100, working temperature ≤300°C • Enclosed (sealed) bonnet design — discharge can be piped to safe location • WCB cast steel or ductile cast iron body options • Suitable for water, air, oil products, and non-corrosive media
- [A48Y Series Spring Full Lift Safety Valve | Steam & Pressure Vessel Overpressure Protection](https://gaoshanvalves.com/products/a48y-spring-full-lift-safety-valve/): The A48Y Spring Full Lift Safety Valve offers reliable overpressure protection for boilers, pressure vessels, and steam systems handling non-corrosive media. Available in PN16/PN25 ratings with DN32–DN150 sizes and working temperatures up to 300°C.Full lift design for high-capacity overpressure dischargeWCB cast steel or ductile cast iron body with Stellite seal faceModels: A48Y-16C, A48Y-16Q, A48Y-25
- [A47H Spring Low Lift Safety Valve – PN16/PN25, DN32-DN150](https://gaoshanvalves.com/products/a47h-spring-low-lift-safety-valve/): The A47H spring low lift safety valve provides automatic overpressure protection for steam, water, and non-corrosive piping systems. Available in PN16 and PN25 pressure ratings, with a working temperature up to 300°C.Size range: DN32–DN150Body options: WCB cast steel or ductile cast ironModels: A47H-16C / A47H-16Q / A47H-25
- [U41F Plunger Valve | PN16/PN25, DN15-DN200](https://gaoshanvalves.com/products/u41f-plunger-valve/): The U41F plunger valve is available in models U41F-16Q, U41F-25Q, U41F-16C, U41F-25, and U11F-16Q, with PN16/PN25 pressure ratings and flanged connections from DN15 to DN200.Working temperature up to ≤200°CDuctile cast iron or WCB cast steel body optionsPTFE seal ring for reliable shut-off performanceSuitable for water, steam, petroleum, and oil products
- [P48H Quick Draining Valve | Flanged Blowdown Valve DN25–DN50](https://gaoshanvalves.com/products/p48h-quick-draining-valve/): The P48H Quick Draining Valve is a flanged blowdown valve available in PN16, PN25, and PN40 pressure ratings. It comes in ductile cast iron (≤300°C) or cast steel WCB (≤425°C) body options, with disc and seat rings made of 2Cr13 or stainless steel for reliable sealing. Designed for rapid drainage of sediment and impurities, it is suitable for water, steam, petroleum, and oil products.
- [D363H Triple Eccentric Hard-Seal Butterfly Valve](https://gaoshanvalves.com/products/d363h-triple-eccentric-hard-seal-butterfly-valve/): Triple offset (triple eccentric) geometry: zero seat friction, bidirectional tight shut-offLaminated stainless + graphite metal seat disc, continuous service to 425°CButt-weld end connection; body in WCB cast steel or stainless (CF8/CF8M), PN2.5–PN40DN80–DN1800; worm gear standard, pneumatic (D663H) or electric (D963H) on requestLow operating torque — disc contacts seat only in the final degrees of closureSuitable for steam, high-temperature oil, natural gas, water and mild acids
- [D343H Triple Eccentric Hard-Seal Butterfly Valve – Flanged, Bidirectional, High-Temperature](https://gaoshanvalves.com/products/d343h-triple-eccentric-hard-seal-butterfly-valve-flanged/): The Gaoshan D343H is a bidirectional triple eccentric hard-seal butterfly valve designed for demanding industrial applications. Rated PN2.5 to PN40 and available in sizes DN50–DN2000, it features a laminated metal seat disc rated to 425°C and a triple-offset design that eliminates seat contact during operation. This results in zero friction, extended service life, and reliable tight shut-off for steam, high-temperature oil, corrosive media, and natural gas. Available with flanged (D343H) end connections in cast steel or stainless steel.
- [D942 Electric Double Eccentric Butterfly Valve](https://gaoshanvalves.com/products/d942-electric-double-eccentric-butterfly-valve/): • D942F (PTFE seat) and D942X (rubber seat) electric double eccentric soft-seal butterfly valve, PN6/10/16 • Six seal materials: CR, NBR, EPDM, PTFE, Silicone, FKM — wide temp range −268 to +250 °C • Size range DN80–DN1600 (nominal DN50–DN2000), flanged RF ends, short and long body variants • Motor operated with Tianjin Ertong QB/QZ type electric actuator (380V/220V AC) • Suitable for air, water, sewage, steam, gas, oil, and corrosive media
- [D642 Pneumatic Double Eccentric Butterfly Valve](https://gaoshanvalves.com/products/d642-pneumatic-double-eccentric-butterfly-valve/): • D642F (PTFE seat) and D642X (rubber seat) pneumatic double eccentric soft-seal butterfly valve, PN6/10/16 • Six seat materials: PTFE, NBR, EPDM, FKM, Silicone, FEP — wide temp range • Size range DN50–DN500, flanged ends, short and long body variants • Double-acting or spring-return pneumatic actuator with NAMUR accessory interface • Suitable for air, water, sewage, steam, gas, oil, and corrosive media
- [D342 Double Eccentric Butterfly Valve](https://gaoshanvalves.com/products/d342-double-eccentric-butterfly-valve/): • D342F (PTFE seat) and D342X (rubber seat) double eccentric soft-seal butterfly valve, PN6/10/16 • Six seat materials: PTFE, NBR, EPDM, FKM, Silicone, Fluorine plastic — wide temp range −268 to +250 °C • Size range DN50–DN2000, flanged RF ends, short and long body variants • Worm gear operated; optional pneumatic or electric actuator • Suitable for air, water, sewage, steam, gas, oil, and corrosive media
- [D971X Electric Wafer Butterfly Valve](https://gaoshanvalves.com/products/d971x-electric-wafer-butterfly-valve/): • Models: D971X-10/10Q/10C (PN10) and D971X-16/16Q/16C (PN16) — electric actuated • Size range DN50–DN500, electric actuator for remote on/off control & PLC integration • Body in gray cast iron, ductile iron, or WCB cast steel; Buna-N rubber seat • 2Cr13 SS stem, ductile iron disc, aluminium bronze bushings • Rated for water, steam, oil, weak acid and alkali up to 135 °C
- [D671X Pneumatic Wafer Butterfly Valve](https://gaoshanvalves.com/products/d671x-pneumatic-wafer-butterfly-valve/): • Models: D671X-10/10Q/10C (PN10) and D671X-16/16Q/16C (PN16) — pneumatic actuated • Size range DN50–DN500, double-acting or spring-return pneumatic actuator • Body in gray cast iron, ductile iron, or WCB cast steel; Buna-N rubber seat • 2Cr13 SS stem, ductile iron disc, aluminium bronze bushings • Rated for water, steam, oil, weak acid and alkali up to 135 °C
- [D371X Gear-Operated Wafer Butterfly Valve](https://gaoshanvalves.com/products/d371x-gear-operated-wafer-butterfly-valve/): • Models: D371X-10/10Q/10C (PN10) and D371X-16/16Q/16C (PN16) — six variants for every duty • Size range DN50–DN500, worm gear drive for smooth torque multiplication on larger bores • Body in gray cast iron, ductile iron, or WCB cast steel; Buna-N rubber seat & O-ring • 2Cr13 SS stem, ductile iron disc, aluminium bronze bushings; ISO 5211 pad for actuator option • Rated for water, steam, oil, weak acid and alkali up to 135 °C
- [D71X Wafer Butterfly Valve (DN40–DN200) | PN10/PN16](https://gaoshanvalves.com/products/d71x-wafer-butterfly-valve/): Gaoshan D71X is a wafer type resilient seated butterfly valve — concentric stem with a replaceable rubber seat, clamped between pipe flanges for quick, space-saving installation in water and HVAC lines.*Resilient seated, bubble-tight shut-off — EPDM, NBR or VITON liner options by medium and temperature*Concentric disc and stem design for low torque and long seat life*Ductile iron body with epoxy coating; 304/316 disc and stem as standard*Wafer connection fits EN 1092 / ANSI B16.5 flange drilling, PN10 & PN16*Sizes DN40 – DN1200; lever, worm gear, electric or pneumatic actuation available*Suitable for water supply, HVAC, wastewater, irrigation and light chemical service*Can be supplied with WRAS / EN 10204 3.1 certificates on request
- [CS11H CS41H Free Float Ball Steam Trap](https://gaoshanvalves.com/products/cs11h-steam-trap/): • Free float ball type — continuous condensate discharge, no water accumulation • CS11H (threaded) / CS41H (flanged), PN16 / PN25 / PN40, DN15–DN50 • Precision-ground stainless steel float ball — entire sphere as sealing surface • Y-series built-in air vent for cold/hot non-condensable gases • Long service life, pressure-independent operation, high back-pressure tolerance
- [Thermodynamic Steam Trap BS19H / BS49H](https://gaoshanvalves.com/products/bs19h-steam-trap/): Gaoshan BS19H / BS49H thermodynamic steam trap — a disc-type design with only one moving part, built for steam mains, drip legs and tracing lines where reliability and minimal maintenance matter.•Single hardened stainless steel disc — no hinges, levers or pivot points to fail•Water-hammer resistant and works in any mounting position, including vertical lines•Excellent condensate drainage under varying steam pressure; positive steam lock-up prevents live-steam loss•Simple, robust construction — field-replaceable disc and seat, no special tools•PN16 / PN25, DN15–DN50; threaded (BSPT/NPT) or flanged ends•Ideal for saturated steam, superheated lines, and outdoor installations with freeze risk•CE marked · ISO 9001 certified manufacturer since 1975 — factory direct, specification sheets and material certificates on request
- [S44F-16 S14F-16 Thermostatic Steam Trap](https://gaoshanvalves.com/products/s44f-16-s14f-16-thermostatic-steam-trap/): • Thermostatic liquid-expansion element — temperature-based actuation • Two selectable bands: Type 01 (90–95°C) / Type 02 (95–135°C) • Ultra-low steam loss ≤0.5%, silent water-hammer-free operation • S44F-16 (flanged) / S14F-16 (threaded), PN16, DN15–DN50 • Ideal for petrochemical, rubber, pharmaceutical, HVAC steam heating
- [Y42X Spring Diaphragm Pressure Reducing Valve](https://gaoshanvalves.com/products/y42x-spring-diaphragm-pressure-reducing-valve/): Gaoshan Y42X is a self-operated, direct-acting pressure reducing valve — a spring-loaded NBR diaphragm holds downstream pressure steady using only the energy of the medium, with no electricity, air or control wiring.*Smooth, chatter-free regulation — no stick-slip like piston-type reducers*Outlet 0.05–1.0 MPa from inlet 0.25–1.6 MPa, held within ±15% across the flow range*Two bodies: Y42X-16 ductile iron, Y42X-16C WCB cast steel — stainless stem and plunger*PN16, DN40–DN200, flanged RF ends; water, oil and non-corrosive liquids to 70°C*Proven on high-rise fire hydrant and sprinkler supply, municipal and building water*Replaceable diaphragm kit; GB/T 12244 design, 100% shell and seat tested before shipment
- [Y43H Piston Type Pressure Reducing Valve (PN16/PN25, DN20–DN300)](https://gaoshanvalves.com/products/y43h-piston-type-pressure-reducing-valve/): The Y43H Piston Type Pressure Reducing Valve is a self-operated, piston-actuated valve that maintains stable downstream pressure without requiring external power. Available with PN16 or PN25 flanged connections in sizes DN20–DN300, it comes in three models: Y43H-16Q (ductile iron), Y43H-16C (cast steel), and Y43H-25 (cast steel).Outlet pressure range: 0.05–1.0 MPa (PN16) / 1.0–1.6 MPa (PN25)Pressure deviation: ±0.05 MPa (PN16) / ±0.06 MPa (PN25)
- [BQ360H Welded Eccentric Semi-Ball Valve | District Heating & Particle Transport](https://gaoshanvalves.com/products/bq360h-welded-eccentric-semi-ball-valve/): Engineered for heavy-duty isolation in district heating and buried pipeline systems, the BQ360H Welded Eccentric Semi-Ball Valve features PN16 butt-welded connections in DN100–DN1000. Its robust construction—WCB body, WCB+D507 seat, and WCB+D577 semi-ball disc—ensures reliable sealing even with dust and particulate media.PN16 butt-welded connections for secure, leak-free installationDurable WCB body with hardened seat and disc for abrasive services2Cr13 upper and lower stems with flexible graphite packing for dependable operationWorm gear drive standard; electric or pneumatic actuation available
- [BQ940H Electric Eccentric Semi-Ball Valve](https://gaoshanvalves.com/products/bq940h-electric-eccentric-semi-ball-valve/): • PN10 / PN16 / PN25 / PN40, DN50–DN1600 • Carbon steel (WCB) body, hard alloy sealing surface • Electric actuator: 380V AC, IP67, Ex d IIC T4 optional • -29°C to +425°C, quarter-turn fast operation• Ideal for slurry, wastewater, ash, petroleum & chemical media
- [BQ640H Pneumatic Eccentric Semi-Ball Valve](https://gaoshanvalves.com/products/bq640h-pneumatic-eccentric-semi-ball-valve/): • Pneumatic eccentric semi-ball valve for slurry & particulate media • PN10/16/25/40, DN50–DN1600, −29°C to +425°C • Hard alloy sealing with self-compensating wear adjustment • Fast 90° quarter-turn pneumatic actuation • For petroleum, chemical, power, water supply, mining
- [BQ340H Eccentric Semi-Ball Valve](https://gaoshanvalves.com/products/bq340h-eccentric-semi-ball-valve/): Gaoshan BQ340H is an eccentric semi ball valve built for the media that destroy conventional ball valves — slurry, dregs, sewage and particle-laden fluids.• Eccentric geometry: the disc wipes the seat only at the final moment of closure — particles cannot pack between the sealing faces• Hard alloy (stellite-equivalent) sealing on both disc and seat — self-compensating as micro-wear occurs• Zero-friction opening and closing — far lower torque than same-size gate valves, longer seat life in abrasive duty• PN10 to PN40, DN50 – DN1600, -29°C to +425°C; carbon steel body, stainless stem• Worm gear, electric or pneumatic actuation on a common ISO 5211 pad• Full-bore flow plus throttling capability — isolation and regulation in one valve
- [Welded Ball Valve Series (DN15–DN1400, PN16–PN25)](https://gaoshanvalves.com/products/welded-ball-valve-series/): Welded ball valve series available in four configurations: lever handle & worm gear, reduced & full bore. Designed for reliable performance in demanding industrial applications.Carbon steel body, SS304 ball, PTFE+20%GC composite seatsPressure rating: PN16–PN25Sizes: DN15–DN1400Temperature range: ≤200°CDish spring preload system ensures constant sealing force
- [RQ41F Gas Ball Valve](https://gaoshanvalves.com/products/rq41f-gas-ball-valve/): • Dedicated gas ball valve for LPG / CNG / natural gas pipeline service • 3 variants: RQ41F-16 / RQ41F-25 / RQ41F-40 covering PN16–PN40 • Full WCB cast steel construction, DN15–DN300, ≤100°C • Reinforced PTFE seats — hydrocarbon-compatible, anti-swelling formula • Anti-blowout stem, anti-static grounding, fire-safe compliant design
- [Q941F Motor Operated Ball Valve](https://gaoshanvalves.com/products/q941f-motor-operated-ball-valve/): • Motor operated ball valve with floating PTFE seat design • 5 variants: Q941F-16Q/25Q/16C/25/40 covering PN16–PN40 • DN20–DN200, flanged ends, ≤200°C • Actuator: On-Off / Modulating 4–20mA / Smart RS485 / Battery Backup • QT450 ductile iron or WCB cast steel body with 2Cr13/304 trim
- [Q641F Pneumatic Flanged Ball Valve](https://gaoshanvalves.com/products/q641f-pneumatic-ball-valve/): PN16 (1.6 MPa) draining ball valve designed for pipeline blowdown. Features a QT450-10 ductile iron body, 2Cr13 ball and stem, and PTFE seat. Available in DN20 and DN200 with GB/T 9113 standard flanges. Operating temperature up to ≤200°C; suitable for water, steam, and oil. One-piece compact body ensures rapid and complete drainage.
- [H76X Wafer Double‑Disc Swing Check Valve](https://gaoshanvalves.com/products/h76x-wafer-double-disc-swing-check-valve/): Rubber soft seal for zero-leakage bubble-tight shutoff Double half-disc swing design with spring-assisted rapid closure Ultra-compact wafer body: 43mm face-to-face (DN50) up to 178mm (DN600) WCB carbon steel or SS304 stainless steel body and disc PN10 / PN16, DN50–DN600, -10~120°C, vertical & horizontal installation
- [J941H / J941Y Electric Globe Valve](https://gaoshanvalves.com/products/j941h-j941y-electric-globe-valve/): Electric actuated flanged globe valve for automated water, steam & oil service, PN16–PN160 No-rub seating design eliminates disc-seat contact during opening/closing for extended service life Integrated electric actuators Z10-24 through Z180-24 with 4–20mA control and impact handwheel override Body materials: ductile iron QT450, WCB, stainless steel 304/316, and Cr5Mo alloy for ≤550°C Expanded graphite packing and optional PTFE for nitric acid / acetic acid corrosion-resistant service
- [Q341F Worm Gear Operated Ball Valve](https://gaoshanvalves.com/products/q341f-worm-gear-operated-ball-valve/): • Worm gear operated flanged ball valve for low-torque pipeline control • Bi-directional sealing with PTFE/hard seat options (≤150℃ / ≤450℃) • PN16/25/40 pressure ratings, DN15-DN300 full size range • Fire-safe & anti-static design for industrial applications • WCB/304/316 materials compatible with water, gas, oil and corrosive media
- [PQ41F Blowdown Ball Valve](https://gaoshanvalves.com/products/pq41f-blowdown-ball-valve/): • Adopts new type sealing material with high temperature & corrosion resistance • Stable performance, reliable sealing and low friction • Light operation, wear-resistant and long service life • Supports installation in any direction for easy assembly • Specially designed for industrial sewage discharge pipeline systems
- [Q41F Ball Valve](https://gaoshanvalves.com/products/q41f-ball-valve/): The Q41F is a quarter-turn, floating-ball on-off valve with PTFE soft seat rings for bubble-tight shut-off at low operating torque. Available in ductile iron, WCB cast steel, and CF8 stainless steel bodies, it suits water, steam, oil, petroleum, and non-corrosive process lines up to 200°C. The anti-blowout stem with dual PTFE packing prevents stem ejection and external leakage, while lever, bevel gear, or actuated operation options provide flexibility. Sizes range from DN20 to DN200 across PN16 to PN63.
- [H42F Silent Check Valve](https://gaoshanvalves.com/products/h42f-silent-check-valve/): Spring-loaded vertical lift disc for silent, slam-free operation QT450-10 ductile iron body and bonnet for high structural strength ZG2Cr13 stainless steel disc and seat for corrosion and wear resistance 60Si2Mn silicon-manganese spring for reliable cyclic fatigue life PN16, DN40–DN400, ≤200°C, vertical installation only (flow upward)
- [HH46X Butterfly Slow-Closing Check Valve](https://gaoshanvalves.com/products/hh46x-butterfly-slow-closing-check-valve/): Hydraulic slow-close buffer: 1–15 seconds adjustable closing time Water hammer peak limited to ≤1.2x nominal pressure Butterfly disc design: compact, lightweight, low flow resistance Flow-independent rubber seal for bubble-tight shutoff PN10 / PN16, DN50–DN600, -10~120°C, flanged connection
- [H76H/W wafer double disc swing check valve](https://gaoshanvalves.com/products/h76h-w-wafer-double-disc-swing-check-valve/): • PN16/PN25/PN40 wafer double-disc swing check valve, DN50–DN600, ≤425°C • Compact wafer alternative to H44 flanged swing check valve • Spring-assisted dual semi-circular discs for rapid closure and low water hammer • Three material grades: 2Cr13, 1Cr18Ni9Ti (304), 1Cr18Ni12Mo2Ti (316) • Fits between flanges; supports vertical and horizontal installation
- [H71H / H71W Wafer Lift Check Valve](https://gaoshanvalves.com/products/h71h-h71w-wafer-lift-check-valve/): • PN16/PN25/PN40 wafer lift check valve, DN15–DN150, ≤425°C • Ultra-compact wafer design installs between two pipe flanges • Three material grades: 2Cr13, 1Cr18Ni9Ti (304), 1Cr18Ni12Mo2Ti (316) • Suitable for water, steam, oil, nitric acid, acetic acid • Can be installed on both vertical and horizontal pipelines
- [RH41F-25 Gas Lift Check Valve](https://gaoshanvalves.com/products/rh41f-25-gas-lift-check-valve/): Product Model: RH41F-25 Gas Lift Check Valve Pressure Rating: PN25 (2.5MPa) Connection Type: Flanged connection Structure: Lift type with gravity-operated disc Body Material: WCB cast steel Sealing Material: 2Cr13 stainless steel disc/seat with 2Cr13/PTFE seal ring Applicable Media: Gas (natural gas, LPG), water, petroleum products Working Temperature: ≤100℃ Core Function: Automatically prevents medium backflow using fluid pressure difference and disc gravity Application Scenarios: Gas pipeline systems, liquefied petroleum gas pipelines, water and oil delivery systems
- [H7B41X hydraulic control check valve](https://gaoshanvalves.com/products/h7b41x-hydraulic-control-check-valve/): Product Model: H7B41X Series Hydraulic Control Check Valve (H7B41X-16 / H7B41X-16C) Pressure Rating: PN16 (1.6MPa) Connection Type: Flanged connection Structure: Normally closed pressure-controlled lift check valve Body Material: Gray cast iron (H7B41X-16) / WCB cast steel (H7B41X-16C) Sealing Material: 2Cr13 stainless steel valve disc and seat Spring Material: 50CrVA alloy steel Applicable Media: Water, oil products Working Temperature: ≤70℃ Core Function: Automatically opens/closes with pipeline pressure changes to prevent boiler overflow and pump backflow Application Scenarios: Normal pressure boiler return water pipelines, water and oil pipeline systems
- [H44H Swing Check Valve](https://gaoshanvalves.com/products/h44h-swing-check-valve/): Product Model: H44H Series Swing Check Valve (H44H-16C/25/40/63/100) Pressure Rating: PN16 ~ PN100 (1.6MPa ~ 10.0MPa) Connection Type: Flanged connection Main Material: WCB cast steel body Sealing Type: Metal hard seal with alloy overlay Working Medium: Water, steam, oil and weak corrosive fluid Max Working Temperature: ≤425℃ Working Principle: Automatically open and close by medium pressure to prevent backflow Installation Way: Suitable for horizontal pipeline mounting Application: Petroleum, chemical industry, power plant and industrial water supply pipeline
- [H41H Lift Check Valve](https://gaoshanvalves.com/products/h41h-lift-check-valve/): Product Model: H41H Series Flanged Lift Check Valve (H41H-16 / 16Q / 16C / 25Q / 25) Pressure Rating: PN16 (1.6MPa) / PN25 (2.5MPa) Body Material: Gray Cast Iron / Ductile Iron / WCB Cast Steel Sealing Material: 2Cr13 Stainless Steel (with optional hard alloy overlay) Applicable Media: Water, Steam, Oil, and weak corrosive media Working Temperature: ≤200℃ / ≤300℃ / ≤425℃ (depending on material) Connection Type: Flanged (compliant with GB/T 9113 standard) Core Function: Automatically prevents medium backflow to protect pumps and equipment Installation: Suitable for vertical/horizontal pipelines, with direction marked on valve body Application Scenarios: Petroleum, chemical, power, water treatment and industrial pipeline systems
- [Z45T-10 / Z45T-10C Bronze Seat Gate Valve](https://gaoshanvalves.com/products/z45t-10-z45t-10c-bronze-seat-gate-valve/): Product Model: Z45T Non-Rising Stem Wedged Gate Valve (Z45T-10 / Z45T-10C) Pressure Rating: PN10 (1.0MPa) Connection Type: Flanged connection Operation Mode: Manual handwheel operation Structure: Non-rising stem, wedged rigid single disc Body Material: Gray cast iron / ductile iron Sealing Surface: Bronze material, wear-resistant and durable Flow Performance: Straight passage, low flow resistance, two-way flow Applicable Medium: Water, sewage and other non-corrosive media Application: Water supply, drainage, municipal engineering, industrial pipelines
- [RJ41F Gas Globe Valve](https://gaoshanvalves.com/products/rj41f-gas-globe-valve/): The RJ41F Gas Globe Valve is engineered for reliable shut-off in gas distribution pipelines, petrochemical plants, and industrial systems. Designed for liquefied petroleum gas (LPG), natural gas, water, and oil products, it meets strict leak-prevention requirements.Pressure Rating: PN25 (2.5 MPa)Size Range: DN25 to DN200Temperature: Up to 100℃Reliable Sealing: Dual sealing with flexible graphite/PTFE packing and metal backup sealMaterials: WCB carbon steel body with 2Cr13 stainless steel stemSafety Features: Anti-leakage, fire-safe design, self-compensating PTFE packing
- [WJ41H Bellows Sealed Globe Valve](https://gaoshanvalves.com/products/wj41h-bellows-sealed-globe-valve/): WJ41H bellows sealed globe valve for zero stem-leak steam, water & oil service, PN16–PN25. Double seal: austenitic stainless steel bellows primary + flexible graphite packing secondary. Carbon steel WCB body, 2Cr13 chrome stainless steel stem & disc, DN25–DN150. Maintenance-free bellows eliminates routine packing adjustments — ideal for fugitive emission control. Rising stem design with hard alloy seat surfacing option for demanding high-temperature applications.
- [Z941H/Z941Y Motor Operated Wedge Gate Valve](https://gaoshanvalves.com/products/z941h-z941y-motor-operated-wedge-gate-valve/): The Z941H/Z941Y Motor Operated Wedge Gate Valve combines a proven hard-sealed wedge gate platform with a multi-turn electric actuator, enabling remote ON-OFF switching and 4–20mA modulating control for automated pipeline operations.Automation-ready: Actuator provides open/closed position feedback, torque sensing, and manual override; integrates easily with SCADA and DCS systems.Reliable sealing: Zero-leakage metal seat performance (2Cr13/Stellite) on the same body design as the Z41H/Y series.Wide pressure and temperature range: PN16 to PN100, up to 425°C (WCB) or 550°C (Cr-Mo steel).Material options: Ductile cast iron, WCB cast steel, or chrome-moly alloy; stainless steel (Z941W) available for corrosive media.Flanged ends, bolted bonnet: Compatible with global flange standards; easy access for packing inspection.Factory tested to API 598: Shell and seat pressure tests before shipment; full traceability and material certificates provided.
- [RZ47F / RZ43F Gas Plate Gate Valve](https://gaoshanvalves.com/products/rz47f-rz43f-gas-plate-gate-valve/): • Gas plate gate valve designed specifically for natural gas, LNG, and coal gas pipelines • Two types: RZ47F (non-rising stem) and RZ43F (rising stem), PN10–PN40 • Floating O-ring seat with preloading force ensures zero-leakage sealing at both ends • Self-cleaning disc design prevents abrasive erosion and extends service life • Full-bore design allows pigging/pipeline cleaning when fully open
- [Z45X Rubber Resilient Seated Gate Valve](https://gaoshanvalves.com/products/z45x-rubber-resilient-seated-gate-valve/): • Flanged resilient-seated gate valve with full NBR rubber coating for zero-leakage water sealing • Dual pressure ratings: PN10 and PN16, DN50–DN600 size range • HT200 ductile cast iron body with full internal/external epoxy coating • NBR rubber encapsulated disc and seat for excellent wear and corrosion resistance • Working temperature up to 80°C for municipal water, HVAC, and irrigation systems

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