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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

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Product Details

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
Model Nominal Pressure PN (MPa) Shell Test Pressure (MPa) Seal Test Pressure (MPa) Working Temperature (°C) Applicable Medium
Z45T-10 / Z45T-10C 1.0 1.5 1.1 ≤135 Water

Main Component Materials
NO Part Name Material (Z45T-10) Material (Z45T-10C)
1 Valve Body, Bonnet, Disc Gray Cast Iron WCB Cast Steel
2 Valve Stem 2Cr13 Stainless Steel
3 Seal Ring Brass (Bronze)
4 Stem Nut Brass
5 Packing PTFE (Polytetrafluoroethylene)

Main Dimensions — Manual Flanged PN10 (mm)
Nominal Diameter DN (mm) L (Face-to-Face) H (Total Height) D0 (Handwheel Dia.) Weight (kg)
40 165 250 160 12
50 178 280 180 17
65 190 300 180 20
80 203 330 200 25
100 229 358 200 30
125 254 400 260 50
150 267 480 280 64
200 292 565 280 96
250 330 675 320 145
300 356 770 360 197
350 381 968 400 268
400 406 1090 500 345
450 432 1175 500 446
500 457 1414 720 547
600 508 1277 620 680
700 610 1630 720 950
800 660 1850 800 1200
900 711 2250 800 1635
1000 811 2400 900 1950

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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