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DN65 PN16 Wafer Dual Plates Check Valve Stainless Steel CF8M Spring Loaded Dual Disc Non Return Valve for Water Oil Gas
Detalhes do produto:
| Lugar de origem: | Zhejiang, China |
| Marca: | Xidelong |
| Certificação: | ISO 9001:2015, CE |
| Número do modelo: | DN65-PN16-WDCV |
Condições de Pagamento e Envio:
| Quantidade de ordem mínima: | 1 peça |
|---|---|
| Preço: | USD 50-200 / Piece |
| Detalhes da embalagem: | Caixa de madeira compensada de exportação com proteção interna de espuma |
| Tempo de entrega: | 7 a 15 dias úteis |
| Termos de pagamento: | T/T, L/C, PayPal, Western Union |
| Habilidade da fonte: | 5000 peças por mês |
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Informação detalhada |
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| Tipo de válvula: | válvula de retenção de pastilha dupla | Diâmetro Nominal: | DN65 (2-1/2\") |
|---|---|---|---|
| Classificação de pressão: | PN16 | Material do corpo: | CF8M de aço inoxidável (316) |
| Material do disco: | CF8M de aço inoxidável (316) | Material do assento: | PTFE |
| Primavera: | Aço inoxidável 316 | Tipo de conexão: | Bolacha |
| Temperatura de trabalho: | -29°C a 200°C | Mídia aplicável: | Água, óleo, gás |
| Destacar: | stainless steel dual plate check valve,spring loaded non return valve,DN65 PN16 wafer check valve |
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Descrição de produto
DN65 PN16 Wafer Dual Plates Check Valve — Stainless Steel CF8M
The Xidelong DN65 PN16 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 wafer-type 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 |
| Compact Wafer Configuration | Ultra-short face-to-face dimension (per API 594) saves installation space and reduces pipeline weight; fits between standard flanges without additional supports |
| PTFE Soft Seat | Leak-tight sealing at low differential pressure; broad chemical compatibility; replaceable seat extends valve service life |
| Bi-Directional Sealing | Positive shutoff in both flow directions; fire-safe secondary metal-to-metal seat backup available on request |
Technical Specifications
- Nominal Diameter: DN65 (2-1/2 inch)
- Pressure Rating: PN16 (Class 150 equivalent)
- Body & Disc Material: ASTM A351 CF8M (316 Stainless Steel)
- Seat Material: Virgin PTFE
- Spring Material: Stainless Steel 316 (Inconel X-750 optional)
- Connection Standard: Wafer type, fits between 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
For custom configurations, including NACE MR0175 sour service trim, cryogenic extensions, or special flange drilling patterns, please contact our engineering team. We offer OEM branding and tailored packaging solutions to meet your project requirements.
Contact us today for a competitive quotation, technical datasheet, or to request a sample for evaluation.
