Product Brief Highlights

• Noise-Eliminating Design: Optimized internal structure effectively suppresses water hammer noise, ensuring quiet pipeline operation.
• Spring-Assisted Quick Closing: Built-in spring enables fast response to prevent medium backflow and pump reverse rotation.
• Vertical Installation: Compact structure for vertical pipeline installation, saving space and simplifying layout.
• Durable Material Construction: QT450-10 ductile iron body with stainless steel internal parts for corrosion resistance and long service life.
• Wide Media Compatibility: Suitable for water, oil and steam media with working temperature up to 200℃.
• Zero Leakage Performance: Precision-machined sealing surface ensures tight shut-off without medium leakage.

1. Product Overview

The Gaoshan Valve H42F-16Q noise-eliminating check valve is a vertical spring-assisted lift check valve designed to prevent medium backflow and eliminate water hammer noise in pipelines. It features a compact streamlined body with built-in spring, ensuring quick and silent closing when flow reverses, effectively protecting pumps and pipeline equipment from damage.

Manufactured with high-strength QT450-10 ductile iron body and corrosion-resistant stainless steel internal parts, this valve offers excellent durability and reliable performance for water, oil and steam applications up to 200℃. Its vertical installation design makes it ideal for tight spaces in municipal water supply, HVAC and industrial systems.

2. Key Features

• Silent Operation: Advanced noise-eliminating structure reduces water hammer and flow noise, suitable for noise-sensitive environments.
• Reliable Backflow Prevention: Spring-loaded disc ensures instant closing to prevent reverse flow and pump damage.
• High Durability: QT450-10 ductile iron body with excellent strength and impact resistance; stainless steel internal parts resist corrosion.
• Compact Vertical Design: Short face-to-face length and vertical installation capability save pipeline space and simplify layout.
• Wide Application Range: Compatible with water, oil and steam media, suitable for temperatures up to 200℃ and pressure PN16.
• Easy Maintenance: Simple internal structure allows for quick inspection and replacement of wearing parts without special tools.

3. Technical Specifications

4. Materials of Construction

5. Structure Drawing & Dimensions

6. Installation & Maintenance Guidelines

• Install vertically with the valve stem in the upward direction for optimal spring performance and sealing effect.
• Ensure the fluid flow direction matches the arrow marked on the valve body.
• Clean the pipeline thoroughly before installation to prevent debris from damaging the sealing surface and spring.
• Do not use the valve as a stop point for lifting heavy loads to avoid damaging the valve body or flanges.
• Periodically inspect the spring and sealing components for wear, and replace them if necessary to maintain performance.
• After long-term shutdown, perform a test operation to ensure the disc opens and closes smoothly before putting back into service.

7. Typical Applications

Gaoshan Valve H42F-16Q noise-eliminating check valves are widely used in pipeline systems requiring backflow prevention and noise reduction:

• Municipal water supply and booster pump stations
• Building HVAC and heating systems
• Oil and gas pipeline transmission systems
• Steam distribution networks in industrial plants
• Water treatment plants and sewage lifting stations

Request a Quote Today

Gaoshan Valve provides high-quality noise-eliminating check valves with reliable performance for global municipal and industrial projects. We offer custom specifications, fast delivery and competitive pricing.

Email: sales@gaoshanvalves.com | Tell us your size, quantity and delivery needs!