Farpro’s cast steel wedge gate valve range includes the Z41H, Z40H, Z541 and SZ41H series. These valves use a wedge-shaped gate to isolate the pipeline and are intended for fully open or fully closed service.
The models below offer different construction and operating arrangements, including handwheel and gear operation. Compare the listed body materials, trim and sizes to find the series that fits your specification.

Z41H Wedge Gate Valve - Cast Steel -16/25/40/64
Gate Body: ASTM A216 WCB
Gate Disc: ASTM A217 CA15 / ASTM A216 WCB
Disc Seat Ring: ASTM A105
Gate Valve Bonnet: ASTM A216 WCB
Stem: 2Cr13
Handwheel: QT450-10
Size: specify the required DN or NPS with your inquiry
Z41H Reference Prices
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Z41H, WCB, DN40, inch 1.5" $80
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Z41H, WCB, DN50, inch 2" $107
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Z41H, WCB, DN65, inch 2.5" $145
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Z41H, WCB, DN80, inch 3" $184
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Z41H, WCB, DN100, inch 4" $248
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Z41H, WCB, DN125, inch 5" $346
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Z41H, WCB, DN150, inch 6" $468
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Z41H, WCB, DN200, inch 8" $773
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Z41H, WCB, DN250, inch 10" $1310
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Z41H, WCB, DN300, inch 12" $1757
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Z41H, WCB, DN350, inch 14" $2656
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Z41H, WCB, DN400, inch 16" $3654
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Z41H-16C, WCB, DN450, inch 18" $3305
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Z41H-16C, WCB, DN500, inch 20" $4006
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Z41H-16C, WCB, DN600, inch 24" $6744

Z40H Wedge Gate Valve - WCB Cast Steel - ANSI API
Gate Body: WCB
Gate Disc: WCB
Gate Valve Bonnet: WCB
Stem: 2Cr13
Size: specify the required DN or NPS with your inquiry
Z40H Reference Prices
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Z40H, WCB, DN40, inch 1.5" $67
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Z40H, WCB, DN50, inch 2" $89
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Z40H, WCB, DN65, inch 2.5" $112
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Z40H, WCB, DN80, inch 3" $132
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Z40H, WCB, DN100, inch 4" $174
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Z40H, WCB, DN125, inch 5" $222
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Z40H, WCB, DN150, inch 6" $323
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Z40H, WCB, DN200, inch 8" $467
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Z40H, WCB, DN250, inch 10" $722
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Z40H, WCB, DN300, inch 12" $945
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Z40H, WCB, DN350, inch 14" $1409
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Z40H, WCB, DN400, inch 16" $1900

Z541 Wedge Gate Valve - WCB Cast Steel - API
Gate Body: ASTM A216 WCB
Gate Disc: ASTM A217 CA15 / ASTM A216 WCB
Disc Seat Ring: ASTM A105
Gate Valve Bonnet: ASTM A216 WCB
Stem: ASTM A276 T410
Handwheel: ASTM A536 65-45-12
Size: specify the required DN or NPS with your inquiry

Water (Seal) Gate Valve - SZ41H - WCB -16C/25
Gate Body: WCB
Gate Disc: WCB
Gate Valve Bonnet: WCB
Stem: 2Cr13
Yoke Sleeve Nut: ZCuAl10Fe3
Handwheel: ASTM A536 65-45-12
Size: specify the required DN or NPS with your inquiry
The series below share a wedge gate shut-off principle, with differences in bonnet construction, trim and operator. Use the individual model specifications and dimension table to compare the available arrangements.
| Gate Valve Model (API) | Nominal Pressure (Mpa) | Test Pressure Strength(Mpa) | Test Pressure Seal(Mpa) | Temperature | Range of use |
|---|---|---|---|---|---|
| Z40H-150LB(C) | 2.0 | 3.0 | 2.2 | -29~425 ℃ | water, gas, oil |
| Z40H-300LB(C) | 5.0 | 7.7 | 5.7 | -29~425 ℃ | water, gas, oil |
| Z541-600LB(C) | 11.0 | 15.4 | 11.3 | -29~425 ℃ | water, gas, oil |
| Z541-900LB(C) | 15.0 | 23 | 16.9 | -29~425 ℃ | water, gas, oil |
| Z41H-10C | 1.0 | 1.5 | 1.1 | -29~425 ℃ | water, gas, oil |
| Z41H-16C | 1.6 | 2.4 | 1.8 | -29~425 ℃ | water, gas, oil |
| Z41H-25 | 2.5 | 3.8 | 2.8 | -29~425 ℃ | water, gas, oil |
| Z41H-40 | 4.0 | 6.15 | 4.51 | -29~425 ℃ | water, gas, oil |
| Z41H-64 | 6.4 | 9.7 | 7.15 | -29~425 ℃ | water, gas, oil |
| SZ41H-16C | 1.6 | 2.4 | 1.8 | -29~425 ℃ | water, gas, oil |
| SZ41H-25 | 2.5 | 3.8 | 2.8 | -29~425 ℃ | water, gas, oil |
Cast Steel Construction
A WCB cast steel body forms the pressure-containing shell, while the gate and seat surfaces provide the shut-off contact. The trim combinations listed for each model identify the materials used at these working surfaces.
Handwheel operation suits straightforward local isolation. Gear-operated versions provide mechanical assistance where a direct handwheel would require greater operating effort.
Send Farpro your valve schedule, drawing or required model for a quotation on cast steel gate valves.