API · ASME · DIN · EN standard industrial valves
Wedge Gate Valves
Wedge gate valves close on a tapered solid or flexible wedge that wedges against the seat rings, so sealing force grows with hand torque — the general-purpose isolation valve for lines that stay open or closed, not for throttling. The range covers NPS 2" to 88" (DN50 to DN2200) at ASME Class 150 to 4500 (PN16 to PN760), with carbon steel, stainless steel, alloy steel, duplex stainless steel and low-temperature steel bodies, solid and flexible wedge options, bolted or pressure-seal bonnet and a bellows-seal variant, RF, BW, RTJ, socket-weld or screwed ends, manual to hydraulic operation, and API 600 / ASME B16.34 / BS EN 558 / ISO 5752 design. Selection turns on the wedge style against thermal binding, the bonnet against pressure class, and the end connection against the piping spec.
Part of the Gate Valves family
Last updated: 2026-11
Family specifications
| size range | NPS 2" to 88" (DN50 to DN2200) |
|---|---|
| pressure class | ASME CLASS 150 to 4500 (PN16 to PN760) |
| body materials | Carbon Steel, Stainless Steel, Alloy Steel, Duplex Stainless Steel, Low-Temperature Steel |
| stem materials | Stainless Steel 304, Stainless Steel 410, Stainless Steel 420 |
| end connections | Raised Face (RF), Butt Weld (BW), Ring Type Joint (RTJ), Socket Weld, Screwed |
| operation | Manual, Gear Operator, Pneumatic, Electric Actuator, Hydraulic |
| temperature range | 0 to 80 C |
| design standards | API 600, ASME B16.34, BS EN 558, ISO 5752 |
| testing standards | EN 12266-1, API 598 |
| face to face | BS 5163, DIN 3202 F4/F5, BS 5155, API 609 |
| wedge types | Solid Wedge, Flexible Wedge |
| bonnet types | Bolted Bonnet, Pressure Seal Bonnet |
| applications | Oil & Gas Production, Refining, Petrochemical, Power Generation, Water Treatment, Chemical Processing |
| extended size range | 2" - 60" (DN50 - DN1500) |
| extended pressure classes | Class 150 LB - 2500 LB (PN16 - PN420) |
| steel body material range | Carbon steel, Stainless steel, Alloy steel including WCB, LCB, LCC, LC1, LC3, CF8, CF8M, CF3, CF3M, WC6, C5, C9, C12, duplex 4A/5A and nickel-alloy options |
| wedge default options | flexible wedge by default, solid wedge can be provided upon request; renewable and non-renewable seat rings |
| bonnet connection by class | Bolted bonnet (BB) normally applied on CL150 - CL1500 with gasket or RTJ ring body-bonnet seal; pressure seal bonnet on higher classes |
| design manufacture standards | API 600, ASME B16.34, DIN 3352, EN 1984 |
| bw end connections | BW, RTJ, Flanged |
| gearbox actuation options | Handwheel, Gearbox, Electric, Pneumatic |
| api design family mapping | Cast steel gate valve to API 600 (ISO 10434) or API 6D; cast stainless steel gate valve to API 603 or API 600; forged steel gate valve to API 602 |
| pressure temperature rating | ASME B16.34 |
| wedge type by size | Gate valves with NPS≥2 are of wedge flexible gate; gate valves with NPS < 2 are of wedge solid gate |
| bonnet design by class | Class 150 ~ Class900 gate valves usually connected with studs and nuts; Class 1500 ~ Class2500 gate valves usually of pressure seal design |
| flange dimension standards | ASME B16.5 (NPS < 24), ASME B16.47 series B, API 605 / ASME B16.47 series A |
| actuation practice | Handwheel or gearbox usually used for gate valve actuation; chain wheel and electric actuator also used on request |
| osy construction summary | Full port design, OS&Y, bolted bonnet, flexible/solid wedge, renewable seat rings, forged T-head stem, rising stem and non-rising handwheel, flanged or butt welding ends |
| small size range | 1/2" - 12" |
| small size pressure classes | Class 150#, Class 300# |
| small size body materials | ASTM A351 CF8M, CF8, WCB |
| small size design standards | ASME B16.34, API 600, API 603 |
| osy rising stem design | Rising stem, OS&Y gate valve |
| wedge customization options | solid wedge or flexible wedge design, materials including bronze, stainless steel and more |
| special features | Bolted Bonnet, Pressure Seal Bonnet, Solid Wedge, Flexible Wedge, Bellows Seal Design |
| wedge materials | Ductile Iron+EPDM |
| medium | Potable Water, Non-aggressive Fluids |
| flange standards | BS 4504 PN6/PN10/PN16, DIN 2501 PN6/PN10/PN16, ISO 7005 PN6/PN10/PN16, JIS 5K/10K/16K, ASME B16.1 125LB, ASME B16.1 150LB, AS 2129 Table D and E |
Ordering & documentation
Documents
Ask for the documentation set with the inquiry — typical items (material certificates, test reports to the listed inspection standard, dimensional drawings) are confirmed and supplied with the quotation.
Quotation
Send the medium, temperature, pressure, size and connection for a quotation-ready inquiry. Lead time, MOQ and price are confirmed at quotation, together with the documents to be supplied with the order.
Sample & supply
Supply terms, order quantities and lead time are agreed per order — state the destination country and required schedule with the inquiry.
Storage & shipping
Store valves with seats and seals protected from UV, ozone and deformation, and keep end-face protectors on until installation; storage limits and shipping arrangements for the selected materials are confirmed at quotation.
Frequently asked questions
What standards govern the design and testing of wedge gate valves?
The published specification for this family lists API 600, ASME B16.34, BS EN 558, ISO 5752 as the design standards. Testing follows EN 12266-1, API 598.
What sizes and pressure ratings are available for wedge gate valves?
The published size range is NPS 2" to 88" (DN50 to DN2200), and the published pressure ratings are ASME CLASS 150 to 4500 (PN16 to PN760). Availability of a specific size and rating is confirmed at quotation.
What materials are wedge gate valves available in?
The published specification lists body materials: Carbon Steel, Stainless Steel, Alloy Steel, Duplex Stainless Steel, Low-Temperature Steel. Material availability for a specific size and rating is confirmed at quotation.
What working temperature range do wedge gate valves cover?
The published working temperature range is 0 to 80 C. For a medium at the edge of the range, confirm the suitability of the selected seat and body materials at quotation.
What end connections do wedge gate valves support?
The published specification lists Raised Face (RF), Butt Weld (BW), Ring Type Joint (RTJ), Socket Weld, Screwed as the available end connections. The connection for a specific size is confirmed at quotation.
What should a quotation inquiry for wedge gate valves include?
The governing standard and class, nominal size, body and seat materials, the service medium with temperature, and the destination — anything missing is confirmed during quotation.
Knowledge: selection guides
Models & executions in this subtype
Model
Double Disc Gate Valves
A double-disc gate execution to API 600 / ASME B16.34: two parallel discs are spread apart against both seat faces by a top wedge, so seating force is generated
View specifications →Model
Cryogenic Gate Valves
A cryogenic gate execution in austenitic stainless steel with PTFE soft seating: DN15 to DN50, PN16 to PN64 and Class 150 to 800, rated -80 C to +80 C for O2, N
View specifications →Model
WCB Cast Steel Gate Valves (K107)
The K107 WCB cast-steel gate execution: DN40 to DN600 at PN10/16 with a WCB body and WCB-plus-2Cr13 sealing faces, internals listed to 570 C and a working-tempe
View specifications →Model
WCB Flanged Cast Steel Gate Valves
WCB flanged cast steel gate valves are the carbon steel wedge execution for steam, oil, gas and chemical lines beyond the cast iron envelope: the benchmark exec
View specifications →Request a quote for wedge gate valves
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