The PTFE safety valve we produce adopts the design with PTFE material for the wetted part. Compared with other materials, PTFE material has extremely high chemical inertness and can effectively resist the erosion of corrosive media such as strong acids and alkalis, ensuring the stable operation of the pressure relief valve in corrosive environments. PTFE pressure relief valves have good temperature resistance and can maintain stable performance over a wide temperature range, adapting to various working conditions. The pressure relief valve made of PTFE material has strong wear resistance and aging resistance, which makes its service life longer. PTFE has a low density, making the pressure relief valve lightweight and easy to install and disassemble. At the same time, PTFE material has a smooth surface, does not contaminate the medium, is easy to clean and maintain, it meets hygiene standards and widely be used for for the food and pharmaceutical industries.
Basic information of PTFE Series Safety Relief Valves:
Diaphragms:PTFE composite NBR,EPDM etc.
Material for upper valve body: Nylon,PP,PVC,PTFE or customized
Material for lower valve body: PTFE
Adjustable pressure: 0-1.0MPa
Connection type: Thread,Flange and can be customized
Model of PTFE Safety Relief Valve
| Model | Material | Nominal Dia. (mm) | Setting Pressure (MPa) | Dimension | Standard Connection | |
|---|---|---|---|---|---|---|
| Lower Valve Body Dia. (mm) | Total Height (mm) | |||||
| RXAF-F6/1.0 | PTFE | 6 | 0.1-1.0 | 64.7 | 82 | Rc1/8” |
| RXAF-F8/1.0 | PTFE | 8 | 0.1-1.0 | 64.7 | 87 | Rc1/4” |
| RXAF-F10/1.0 | PTFE | 10 | 0.1-1.0 | 64.7 | 89 | Rc3/8” |
| RXAF-F15/1.0 | PTFE | 15 | 0.1-1.0 | 64.7 | 94 | Rc1/2” |
| RXAF-F20/1.0-N | PTFE | 20 | 0.1-1.0 | 64.7 | 104 | Rc3/4” |
| RXAF-F20/1.0 | PTFE | 20 | 0.1-1.0 | 87 | 123 | Rc3/4” |
| RXAF-F25/1.0 | PTFE | 25 | 0.1-1.0 | 87 | 128 | Rc1” |
| RXAF-F32/1.0 | PTFE | 32 | 0.1-1.0 | 117 | 175 | Rc1 1/4” |
| RXAF-F40/1.0-N | PTFE | 40 | 0.1-1.0 | 117 | 185 | Rc1 1/2” |
| Other unspecified model/material/connection can be customized according to requirement. | ||||||
Safety relief valve is opened and closed automatically according to the working pressure of the pressure system. Safety valve is generally installed on the equipment of closed system or pipeline to keep the system safety. When the pressure in the equipment or pipeline exceeds the setting pressure of the safety valve, it will open automatically and relief the pressure to ensure that the medium pressure in the equipment and pipeline is under the setting pressures the equipment and pipeline can work normally to avoid accidents and losses.
Design features:
- With Diaphragm structure spring and the pressure can be adjustable.
- The wetted parts are only the lower valve body and the diaphragm and they are assembled with sealing rib which has good sealing effect and high sensitivity.
- Multiple materials of diaphragm are optional to meet the usage of different environments and scenarios.
| Technical Parameters | |
| Connection type | Thread, flange etc. and can be customized |
| Adjustable pressure | 0-1.0MPa, 0-2.0MPa |
| Safety test pressure | 1.5 times the maximum input pressure |
| Applicable temperature | -60℃ to +300℃ (customizable） |
| Available materials | |
| Materials for Lower valve body | PVC,SS304,SS316L,Hastelloy, PTFE,PVDF,PP, carbon steel etc.and can be customized |
| materials for diaphragm | PTFE composite NBR,EPDM etc. |
| Material for upper valve body | Nylon,PVC, carbon steel , SS304,SS316L etc.and can be customized |
