Stainless Steel Flange Check Valve for Water Oil Gas – Dual Plate Non Return Valve
Price:
USD 50-200 / Piece
MOQ:
1 Piece
Delivery Time:
7-15 working days
Brand:
Xidelong
Product Description
Stainless Steel Flange Check Valve for Water Oil Gas – Dual Plate Non Return Valve
The Xidelong Wafer Dual Plates Check Valve is a high-performance non-return valve engineered for reliable backflow prevention in demanding industrial pipeline systems. Featuring a robust stainless steel CF8M (A351 Grade 316) body and dual spring-loaded discs, this flange connection check valve delivers exceptional corrosion resistance, rapid closure, and maintenance-free operation across a wide range of applications.
Key Features
| Feature | Benefit |
|---|---|
| Dual Plate Spring-Loaded Design | Torsion spring mechanism ensures instant, bubble-tight closure when flow reverses, preventing water hammer and system damage |
| CF8M Stainless Steel Body & Discs | Superior corrosion and oxidation resistance; suitable for aggressive media including seawater, chemicals, and high-temperature fluids up to 200°C |
Technical Specifications
- Body & Disc Material: ASTM A351 CF8M (316 Stainless Steel)
- Seat Material: Virgin PTFE
- Spring Material: Stainless Steel 316 (Inconel X-750 optional)
- Connection Standard: EN 1092-1 PN16 / ASME B16.5 Class 150 flanges
- Design Standard: API 594, API 598, EN 13709
- Face-to-Face: API 594 Short Pattern
- Working Temperature: -29°C to +200°C (-20°F to +392°F)
- Applicable Media: Water, hot water, steam, oil, gas, weak acids, organic solvents
Typical Applications
- Water Treatment Plants: Pump discharge backflow prevention in raw water, treated water, and sludge lines
- HVAC Systems: Chilled water, condenser water, and hot water circulation loops
- Oil & Gas: Refinery process lines, tank farm piping, and fuel transfer systems
- Marine & Shipbuilding: Ballast water systems, bilge discharge lines, firefighting mains
- Chemical Processing: Corrosive media transfer where 316 SS compatibility is required
- Power Generation: Cooling water circuits, auxiliary piping, condensate return lines
Quality Assurance
Every Xidelong dual plate check valve undergoes the following quality control procedures before shipment:
- 100% shell pressure test per API 598 at 1.5x rated pressure
- 100% seat leakage test at 1.1x rated pressure with zero visible leakage
- Material certificate (EN 10204 3.1) for body, disc, and trim components
- Dimensional inspection against API 594 face-to-face tolerances
- Full traceability from melt lot to finished product
Contact us today for a competitive quotation, technical datasheet, or to request a sample for evaluation.
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Company
Wenzhou Xidelong Valve Co. LTD
Location
No566 Binhai 3rd road yongxing subdistrict longwan dist wenzhou zhejiang china
Contact Person
jin