Z45T-10 / Z45T-10C Bronze Seat Gate Valve

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

Gaoshan Valve — Z45T-10 Gate Valve

Model: Z45T-10 / Z45T-10C  |  Pressure: PN10  |  Connection: Flanged  |  Medium: Water

Pressure Class
PN10
Size Range
DN40 – DN1000
Temperature
≤135°C
Body Material
Cast Iron / WCB Cast Steel
Applicable Medium
Water
Non-Corrosive Fluids
Core Strengths
Bronze Seat Ring Sealing
Precision-machined brass seat ring delivers reliable metal-to-metal sealing performance with excellent wear resistance for water service applications.
Dual Body Material Options
Available in gray cast iron (Z45T-10) for cost-effective service or WCB cast steel (Z45T-10C) for enhanced strength under demanding operating conditions.
PTFE Packing & Brass Stem Nut
PTFE stem packing combined with brass stem nut ensures smooth, low-friction operation with minimal maintenance requirements.
Wide Size Range Up to DN1000
Comprehensive size coverage from DN40 to DN1000 makes this series suitable for municipal water mains, industrial plants, and large-scale distribution systems.

Product Overview

The Z45T-10 and Z45T-10C are flanged bronze-seated non-rising stem (NRS) gate valves engineered for water supply and distribution networks. Featuring a brass (bronze) seat ring that provides durable metal-to-metal sealing, these valves are widely used in municipal waterworks, irrigation systems, fire protection pipelines, and general industrial water handling applications.

The Z45T-10 variant is constructed from gray cast iron body, bonnet, and disc for economical general-purpose installations, while the Z45T-10C model utilizes WCB cast steel components for superior mechanical properties in higher-demand environments. Both versions feature a 2Cr13 stainless steel valve stem, brass stem nut, and PTFE stem packing for reliable long-term operation. Available in sizes from DN40 up to DN1000 at PN10 pressure rating with working temperatures up to 135°C, this series complies with GB/T 12232 design standards and PN95 flange connection dimensions.

Performance Specifications
ModelNominal Pressure PN (MPa)Shell Test Pressure (MPa)Seal Test Pressure (MPa)Working Temperature (°C)Applicable Medium
Z45T-10 / Z45T-10C1.01.51.1≤135Water

Main Component Materials
NOPart NameMaterial (Z45T-10)Material (Z45T-10C)
1Valve Body, Bonnet, DiscGray Cast IronWCB Cast Steel
2Valve Stem2Cr13 Stainless Steel
3Seal RingBrass (Bronze)
4Stem NutBrass
5PackingPTFE (Polytetrafluoroethylene)

Main Dimensions — Manual Flanged PN10 (mm)
Nominal Diameter DN (mm)L (Face-to-Face)H (Total Height)D0 (Handwheel Dia.)Weight (kg)
4016525016012
5017828018017
6519030018020
8020333020025
10022935820030
12525440026050
15026748028064
20029256528096
250330675320145
300356770360197
350381968400268
4004061090500345
4504321175500446
5004571414720547
6005081277620680
7006101630720950
80066018508001200
90071122508001635
100081124009001950

Flange dimensions comply with GB/T standards. Dimensions are for reference only. Contact us for certified drawings.

Structure Drawing

Structure drawing for reference only. Contact us for certified dimensional drawings.

Design & Manufacturing Standards
GB/T 12232
GB/T 13927
API 598
ANSI B16.5
GB/T 12234
ISO 5208
JB/T 308

Installation & Maintenance Notes
  • Install vertically or horizontally as required by pipeline orientation. Ensure adequate clearance for handwheel operation and maintenance access.
  • Flush the pipeline thoroughly before installation — debris can scratch or damage the brass seat ring during initial commissioning.
  • Do not use the handwheel as a lifting point. Excessive force on the handwheel may damage the bonnet assembly, stem threads, and PTFE packing seal.
  • For valves installed but idle over extended periods, operate the handwheel periodically (monthly recommended) to prevent the brass seat ring from sticking due to mineral deposits.
  • Inspect PTFE packing during routine maintenance and replace if signs of compression set, extrusion, or leakage around the stem area are observed.

Typical Applications
  • Municipal Water Supply & Distribution Networks
  • Fire Protection Systems (Hydrant Lines, Sprinkler Mains)
  • Agricultural Irrigation Systems
  • HVAC Chilled Water & Hot Water Circuits
  • Process Water Treatment Plants & Cooling Towers
  • General Industrial Fluid Isolation & Flow Control

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