Technical Specifications
| Parameter | Specification |
|---|---|
| Product Name | 316 Stainless Steel Gate Valve |
| Valve Type | Gate Valve |
| Material | Stainless Steel 316 / 316L |
| Body | ASTM A182 F316 / F316L or equivalent |
| Bonnet | SS316 / SS316L |
| Gate / Wedge | SS316 / SS316L |
| Stem | SS316 / SS316L |
| Seat Ring | SS316 / SS316L |
| Gasket | SS316 + Graphite / suitable sealing material |
| Packing | Flexible Graphite |
| Bonnet Type | Bolted / Welded, depending on design |
| Stem Type | Rising Stem / OS&Y |
| Port | Full / Standard Bore |
| Operation | Handwheel |
| End Connection | Threaded / Socket Weld / Flanged |
| Thread Standard | NPT / BSP, as specified |
| Flange Standard | ASME B16.5 |
| Design Standard | API 602 / ASME B16.34 |
| Testing Standard | API 598 |
| Pressure Class | Class 150 / 300 / 600 / 800 / 1500 / 2500, depending on design |
| Typical Forged Size | ½”–2″ for API 602 designs |
| Temperature | Application dependent; approximately -29°C to 420°C for some Class 800 designs |
| Flow Direction | Bi-directional |
| Seat Type | Metal seated |
| Stem Feature | Blow-out-proof design available |
| Service | Water, steam, oil, gas, chemicals, hydrocarbons and process fluids |
316/316L forged gate valves are available under API 602 in pressure classes ranging from 150 to 2500, with materials such as ASTM A182 F316/F316L.
Typical 316 Material Construction
- Body: ASTM A182 F316
- Bonnet: ASTM A182 F316
- Gate: ASTM A479 Type 316
- Stem: ASTM A479 Type 316
- Seat: SS316
- Gasket: 316 Stainless Steel + Graphite
- Packing: Flexible Graphite
- Bolting: Stainless steel suitable for the pressure/temperature class
- Handwheel: Suitable coated steel/iron or stainless-steel option
For API 602 Trim No. 10, the stem and both gate and body seating surfaces can be Type 316 stainless steel; Trim 12 uses Type 316 stem/gate with hardfaced seating.
Common Standards
- API 602 – Forged steel gate valves
- ASME B16.34 – Valves, flanged/threaded/welding-end
- ASME B16.5 – Flanges
- ASME B16.11 – Forged socket-welding/threaded fittings
- API 598 – Valve inspection and pressure testing
- ASME B16.10 – Face-to-face dimensions where applicable
A typical stainless-steel API 602 Class 800 valve can have NPT/BSP threaded ends or socket-weld ends, with API 598 testing.
Example Purchase Specification
GATE VALVE, 2″, CLASS 800, SS316, API 602
- Type: Forged Gate Valve
- Size: 2″
- Pressure Rating: Class 800
- Body: ASTM A182 F316
- Bonnet: ASTM A182 F316
- Gate: SS316
- Stem: SS316
- Seat: SS316
- Packing: Flexible Graphite
- Gasket: SS316 + Graphite
- Port: Standard/Full Bore
- Stem: Rising Stem, OS&Y
- Operation: Handwheel
- End: NPT Threaded / Socket Weld
- Design: API 602 / ASME B16.34
- Testing: API 598
- Service: Industrial/process applications
