PTFE FEP PFA Lined Wafer Type Check Valve
- Place of Origin:
- Wenzhou,China
- Packing:
- Suitable Packing for Sea/Air Transport
- Connection:
- Wafer Type
- Pressure:
- PN10,PN16,150LBS
- Temperature:
- PTFE:-29℃ ~180℃, PFA:-29℃~200℃, FEP:-29℃~150℃
FVF PTFE FEP PFA Lined Wafer Type Check Valve
- FVF lined check valve only allow one way flow direction and prevent the back-low of liquids in pipeline. Generally check valve is automatically working. under the pressure function of one direction flow, the disc open, while when the liquid back flows, the valve will cut flow.
- FVF fully lined wafer swing check valve is of two-piece construction with only one moving part, ideal to use in totally lined piping systems in corrosion applications. The valve can be mounted horizontally or vertically with upward flow.
- FVF lined check valve is mainly used in chemical industries,such as sulfuric acid, alkali etc.
Product Parameter
Materials of Main Parts
| No. | Part Name | Material List | |||||
| 1 | Body/Bonnet | HT250 | WCB | CF8 | CF8M | CF3 | CF3M |
| 2 | Disc/Stem | 25 1Cr18Ni19/CF8 00Cr17Ni14Mo2/CF3M | |||||
| 3 | Lining/Seat | PCTFE(F3) FEP(F46) PTFE(F4) PFA PO | |||||
| 4 | Bolt | 35 | 35 | 0Cr18Ni9 | 0Cr18Ni9 | 0Cr18Ni9 | 0Cr18Ni9 |
| 5 | Nut | 45 | 45 | 0Cr18Ni9 | 0Cr18Ni9 | 0Cr18Ni9 | 0Cr18Ni9 |
Technical Specification
| Design & Manufacture Standard | GB/T 12236 | API 6D | ||
| Face-to-face Dimension Standard | GB/T 12221 | ASME B16.10 | ||
| Flange Standard | HG/T 20592 | ASME B16.5 | ||
| Inspection and Test Standard | GB/T 13927 | API 598 | ||
| Nominal Pressure | 1.0MPa | 1.6Mpa | 150LB | |
| Test Pressure | Shell Test | 1.5MPa | 1.5MPa | 1.5MPa |
| High Pressure Sealing | 1.1MPa | 1.1MPa | 1.1MPa | |
| Low Pressure Sealing | 0.6MPa | 0.6MPa | 0.6MPa | |
| Temperature Range | PFA:-29℃~200℃ PTFE:-29℃~180℃ FEP:-29℃~150℃ | |||
| Applicable Medium | Strong corrosive medium i.e.hydrochloric acid,Nitric acid,Hydrofluoric acid,Liquid chlorine,Sulfuric acid and Aqua regia etc. | |||
| Note:Test standard refers to general valve standard,high pressure should be customized for processing. | ||||
