Pressure Seal Check Valves
Class 2500 Pressure Seal Check Valve is configured for very high-pressure critical isolation. Available materials, end connections, operation and inspection options can be matched to the project specification.
Technical Specifications
| Pressure Class | ASME Class 2500 |
|---|---|
| Design Standard | ASME B16.34 / API 594 |
| Size Range | 2–24 in |
| Body Materials | WCB, WC6, WC9, C12A, CF8M |
| Connections | RF, RTJ, BW |
| Application Focus | High-pressure backflow prevention in steam and process lines |
Selection Guide
Class 2500 is used for very high-pressure critical isolation. Requires the most disciplined rfq package in this structure; incomplete service data can lead to major design changes. 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 WCB, WC6, WC9, C12A, CF8M. The correct grade depends on corrosion, minimum and maximum design temperature, toughness, hardness limits and the project material specification.
End Connections
Rtj or bw are commonly considered, but the project piping class is the governing document. Available connection families for this product include RF, RTJ, BW.
Design & Engineering
For Class 2500, treat material, pressure boundary, stem/shaft load, seating, torque, actuation and inspection as one engineering review. 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
Define nde, material verification, pressure-test acceptance, documentation and witness points in the itp before production.
RFQ Checklist
Use this checklist to prepare a complete enquiry and reduce technical clarification during quotation.
01 · Basic Data
Confirm nominal size, Class 2500, quantity, design standard and required delivery basis.
02 · Construction
State body material, trim or seat requirement and the approved end connection: RF, RTJ, BW.
03 · Project Requirements
Include process fluid, design temperature, applicable project specifications, inspection level and certification requirements.
Buyer Questions
Provide valve size, Class 2500, design standard, body and trim material, end connection, operation, quantity, service fluid, design temperature and inspection requirements.
Typical project options include WCB, WC6, WC9, C12A, CF8M. Final material selection must follow the approved piping class and service conditions.
This product family includes RF, RTJ, 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.
