Compact Wafer Check Valve
Ultra-short face-to-face non-return check valve manufactured to API 594. Installed directly between pipe flanges to prevent reverse flow with minimum piping weight, spring-assisted rapid closing, and virtually zero water hammer slam.
Design Criteria & Manufacturing Specifications
Manufactured strictly to international engineering codes with 100% factory pressure testing, full EN 10204 3.1 / 3.2 material traceability, and accredited third-party witness support.
| Engineering Parameter | Applicable Codes, Standards & Design Criteria |
|---|---|
| Design Standard | API 594, ASME B16.34 |
| Spring Mechanism | Inconel X-750 high-temperature torsion springs |
| Seat Options | NBR / EPDM / Viton resilient or Integral Stellite metal-to-metal |
Wafer Check Valve Standard & Engineered Models
TSV manufactures an engineered lineup of Wafer Check Valve configurations for global oil & gas transmission pipelines, refinery manifolds, power plants, and severe industrial processes. Each unit undergoes 100% hydrostatic and pneumatic factory acceptance testing before dispatch.
Dual-Plate Spring-Loaded Non-Slam Wafer Check Valve
Twin D-shaped semi-circular plates loaded by torsion springs close before flow reversal occurs, eliminating pipeline water hammer slam shockwaves.
High-Pressure Forged Dual-Plate RTJ Retainerless Check Valve
Retainerless design with no external body drillings or plugs, completely eliminating fugitive emissions for high-pressure sour gas transmission.
Single-Disc Thin Wafer Swing Check Valve
Ultra-thin short pattern wafer check valve fitting between compact flange faces where space and structural weight limits are paramount.
Stainless Steel Cast Dual Plate Chemical Wafer Valve
Full investment cast CF8M austenitic stainless body and trim providing superior resistance to caustic soda, acids, and brine fluids.
Compact Non-Slam Resilient Seating & Rapid Spring-Assisted Closure
Ultrashort face-to-face wafer profile with dual torsion springs prevents reverse flow surges and water hammer shockwaves.
100% Hydrostatic Acceptance
Every valve is pressure-tested per API 598 / API 6D Rate A with zero allowable bubble leakage prior to factory crating.
EN 10204 3.1 Certified
Certified Mill Test Reports (MTR) with optical emission spectrometer chemical composition and mechanical impact values.
Global OXY Approved Supplier
Audited and approved on the global master vendor list (#24) of Occidental Petroleum for severe upstream duties.
Explore All 5 Check Valve Sub-Categories
1:1 aligned with TSV factory catalog. Engineered non-return valves preventing backflow and water hammer in industrial piping.
Dual Plate Check Valve
API 594 compact wafer design with spring-loaded dual plates for rapid non-slam closure.
API 594 Non-Slam View Dual Plate Check Valve →Flanged Swing Check Valve
Heavy bolted cover swing check valve providing full unobstructed bore for low pressure drop.
Full Bore Swing View Flanged Swing Check Valve →Single Disc Wafer Check Valve
Ultra-thin short pattern wafer check valve easily sandwiched between ASME B16.5 flanges.
Current Series View Page Top ↑Forged Piston / Ball Check Valve
Class 800 - 2500 high-pressure forged piston lift check valve for boiler feed and pump discharge.
Class 800 - 2500 View Forged Piston / Ball Check Valve →Threaded & Socket Weld Check Valve
High-integrity threaded NPT/BSPT and socket weld check valves for chemical dosing skids and power packs.
Thread / SW View Threaded & Socket Weld Check Valve →Request Engineering Submittal & Commercial Quotation
Connect directly with our Yongjia engineering technical sales team. Receive technical engineering datasheets, CAD dimensional GA drawings, and quotation within 24 hours.