API 602 Forged Steel Check Valves
Class 1500 Forged Steel Check Valve is configured for high-pressure critical service. Available materials, end connections, operation and inspection options can be matched to the project specification.
Technical Specifications
| Pressure Class | ASME Class 1500 |
|---|---|
| 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 non-return service |
Selection Guide
Class 1500 is used for high-pressure critical service. The rfq should be complete before pricing because material, ends, trim and actuation can significantly affect construction. For this valve design, buyers should also review disc motion, hinge or spring behavior, closure response 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
Rtj and bw are frequently specified; exact ends must match the approved piping class. Available connection families for this product include SW, NPT, RF, BW.
Design & Engineering
For Class 1500, review pressure boundary design, material grade, trim, seat load, torque, actuator sizing and maintainability as one system. Also confirm orientation, flow direction, allowable pressure drop, closure behavior, body material and end connection.
Pump discharge, compressor discharge, process lines, pipelines and utility systems. Final suitability depends on the actual fluid, design temperature, corrosion conditions, cycling frequency and project specification.
Testing & Inspection
Expect tighter control of material traceability, nde, pressure tests and project documentation where specified.
RFQ Checklist
Use this checklist to prepare a complete enquiry and reduce technical clarification during quotation.
01 · Basic Data
Confirm nominal size, Class 1500, 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 1500, 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.
