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Wafer Check Valve
Overview
2L Wafer Check Valves are an all-purpose non-return valve type of valve, which is designed with a swinging disc to allow or block flow. The construction allows them to be fitted in extremely tight spaces where the flanged check valve cannot be used, with versatile sealing options and lighter in weight they can be used for an array of applications. Wafer Check Valves come with both Soft and metal-to-metal seating arrangements.
Special Features
- The design complies with API 6D, API 594
- Seating materials - EPDM, Nitrile, A240 PFTE, Viton and Metal Seated
- Opens in low pressure
- Spring-loaded design is available
- Seals with the raised profile for enhanced sealing
- Suitable for -196° C (Cryogenic) to 900° C (Fire Safe applications)
Design Standards
- ASME B16.34, API 6D and API 594
End Flanges:
- ASME B16.5
Face to Face
- API 6D, API 594
Testing Standard
- API 598, API 6D
End Connections
- Wafer
Sizes Range
- DN 15 to DN 300 (1/2" to 12")
Pressure rating
- PN 10, PN 16, PN 25, Class 150, Class 300, Class 600, Class 900 & Class 1500
Operations
- Automatic
Shutoff Rating
- Zero Leakage for Soft Seated
- Metal Seated as per API 598
| Material Type Specification | ||
|---|---|---|
| Type of Service | Valve Shell Material | Pressure Controlling Parts & Stem |
| General Service | Carbon or Low-Alloy Steel | Carbon or Low-Alloy Steel |
| General Service | Carbon or Low-Alloy Steel | Stainless Stee |
| General Service | Stainless Steel | Stainless Stee |
| Sour Service | Carbon or Low-Alloy Steel | Carbon or Low-Alloy Steel |
| Sour Service | Carbon or Low-Alloy Steel | Stainless Steel |
| Sour Service | Stainless Steel | Stainless Steel |
| Sour Service | CRA ( Corrosion Resistant Alloy) | CRA ( Corrosion Resistant Alloy) |
Sour Service: as per NACE MR0175 / ISO 15156 and NACE MR0103 / ISO17945, for full details, contact 2L Engineers. Material Specification details are only indicative, for full details, contact 2L Engineers.
