API 602 Forged Steel Gate Valves
Class 800 Forged Steel Gate Valve is configured for compact forged-steel small-bore isolation or throttling. Available materials, end connections, operation and inspection options can be matched to the project specification.
Technical Specifications
| Pressure Class | ASME Class 800 |
|---|---|
| Design Standard | API 602 / ASME B16.34 |
| Size Range | 1/2–2 in |
| Body Materials | A105N, LF2, F304, F316, F22 |
| Connections | SW, NPT, RF, BW |
| Application Focus | Compact small-bore isolation in high-integrity process service |
Selection Guide
Class 800 is used for compact forged-steel small-bore isolation or throttling. Commonly associated with compact forged valves, so the rfq should clearly state sw, npt, flanged or bw ends. For this valve design, buyers should also review wedge, stem, bonnet and seat design.
Final pressure-temperature limits, dimensions, operating torque and test values are confirmed against the applicable standard, approved drawing and project specification.
Download a PDF summary with the Class-specific product range, materials, end connections, selection notes and RFQ checklist.
Download PDF DatasheetMaterial Selection
Typical project materials include A105N, LF2, F304, F316, F22. The correct grade depends on corrosion, minimum and maximum design temperature, toughness, hardness limits and the project material specification.
End Connections
Socket weld and threaded ends are common options; flanged or butt-weld ends depend on the actual valve design. Available connection families for this product include SW, NPT, RF, BW.
Design & Engineering
For Class 800, review small-bore dimensions, bonnet construction, packing, stem material and end preparation together. Also confirm wedge type, bonnet type, stem/trim, body material, end connection and operation.
Refinery isolation, pipeline block service, petrochemical units, power and utilities. Final suitability depends on the actual fluid, design temperature, corrosion conditions, cycling frequency and project specification.
Testing & Inspection
Confirm forged material traceability, pressure tests and any hardness or nde requirements in the project specification.
RFQ Checklist
Use this checklist to prepare a complete enquiry and reduce technical clarification during quotation.
01 · Basic Data
Confirm nominal size, Class 800, quantity, design standard and required delivery basis.
02 · Construction
State body material, trim or seat requirement and the approved end connection: SW, NPT, RF, BW.
03 · Project Requirements
Include process fluid, design temperature, applicable project specifications, inspection level and certification requirements.
Buyer Questions
Provide valve size, Class 800, design standard, body and trim material, end connection, operation, quantity, service fluid, design temperature and inspection requirements.
Typical project options include A105N, LF2, F304, F316, F22. Final material selection must follow the approved piping class and service conditions.
This product family includes SW, NPT, RF, BW. The correct connection depends on the line class, flange facing or weld preparation in the project specification.
Where the design allows it, gear, pneumatic, electric or hydraulic operation can be evaluated after operating torque, fail action and project requirements are confirmed.
Related Products
Compare other pressure classes in the same valve family or return to the full product range.
