Dual Plate, Spring Loaded, Wafer Style Design for the protection of gas or liquid piping systems.
Industry Standards
- ASME B16.1, B16.5, B16.24, B16.34, B16.47
- B31.1
- NACE MR-01-75
Description
- Lightweight & Versatile: 80-90% lighter than conventional full-body check valves.
- Reduced Pipe Supports: Simplifies piping and reduces installation costs.
- No Additional Support Needed: Requires fewer expensive supports.
- Optimized Space Utilization: Simplifies piping layout.
- Spring-Loaded, Double Door Design: Features low cracking pressure and a disc that opens 85° for positive closing.
- Materials and Trims Available: Suitable for all services within the specified temperature range.
- Extended Leg Springs: Prevents seat wear caused by scrubbing.
- Precise Springs: Improve responsiveness and reduce the effects of water hammer.
- Seat Options: Resilient or metal-to-metal available.
- Molded Materials: BUNA-N, Viton®, EPDM, and others as required.
Specifications
- Valve Size: 2″–76″, DN50–DN1900
- Pressure Class: 150LB to 2500LB, PN10 to PN250
- Materials: WCB, CF8, CF3, CF8M, CF3M, B148, A105, LF2, F304, F316
- Design and Manufacturing Standards: API 6D
- Face to Face Standards: ASME B16.10
- Flange Dimension Standards: ASME B16.5, ASME B16.47, EN1092-1
- Pressure Test Standards: API 598, API 6D
- Fire Safety Test Standards: API 607
- Quality/Product Certifications: ISO9001, ISO14001, ISO18001
- Fugitive Emissions: ISO 15848-1, API 622
- NACE: NACE MR 0103, NACE MR 0175
- Shutoff Class: API 598 (Zero Leakage)
- Bore: Full Bore
- Process Connection Types: Wafer Type, Flange Type, Lug Type