The PVC safety relief valves we manufacture are widely used in chemical, water treatment, laboratory and other fields, as well as in air and various corrosive liquids.
Compared with the safety valves made of other materials, PVC safety valves have a compact design structure,which are easy to install and debug, and have stable and reliable performance This type of safety valve has a sensitive response and can quickly respond to changes in system pressure with good reproducibility to ensure the system’s safety. The PVC material has good corrosion resistance and is suitable for environments with various corrosive liquids and gases, extending the service life of the safety valve. At the same time, safety valves made of PVC material not only ensure performance, but also have relatively reasonable prices and high cost-effectiveness.
In summary, PVC safety valves have significant advantages in terms of structure, performance, corrosion resistance, and price It is a low-cost solution that can meet most fluid control needs.
Basic information of PVC Series Safety Relief Valves:
Diaphragms: PTFE composite NBR,EPDM etc.
Material for upper valve body: Nylon,PVC
Material for lower valve body: PVC
Adjustable pressure: 0-1.0MPa
Connection type: Thread,Flange and can be customized
Model of PVC Safety Relief valve
| Model | Material | Nominal Dia. (mm) | Setting Pressure (MPa) | Dimension | Standard connection | |
|---|---|---|---|---|---|---|
| Lower Valve Body Dia. (mm) | Total Height (mm) | |||||
| RXAF-P6/1.0 | PVC | 6 | 0.1-1.0 | 64.7 | 82 | Rc1/8” |
| RXAF-P8/1.0 | PVC | 8 | 0.1-1.0 | 64.7 | 87 | Rc1/4” |
| RXAF-P10/1.0 | PVC | 10 | 0.1-1.0 | 64.7 | 89 | Rc3/8” |
| RXAF-P15/1.0 | PVC | 15 | 0.1-1.0 | 64.7 | 94 | Rc1/2” |
| RXAF-P20/1.0-N | PVC | 20 | 0.1-1.0 | 64.7 | 104 | Rc3/4” |
| RXAF-P20/1.0 | PVC | 20 | 0.1-1.0 | 87 | 123 | Rc3/4” |
| RXAF-P25/1.0 | PVC | 25 | 0.1-1.0 | 87 | 128 | Rc1” |
| RXAF-P32/1.0 | PVC | 32 | 0.1-1.0 | 117 | 175 | Rc1 1/4” |
| RXAF-P40/1.0-N | PVC | 40 | 0.1-1.0 | 117 | 185 | Rc1 1/2” |
| RXAF-P40/1.0 | PVC | 40 | 0.1-1.0 | 137 | 240 | Rc1 1/2” |
| RXAF-P50/1.0 | PVC | 50 | 0.1-1.0 | 167 | 260 | Rc2” |
| RXAF-P65/1.0 | PVC | 65 | 0.1-1.0 | 177 | 325 | Rc2 1/2” |
| RXAF-P80/0.6 | PVC | 80 | 0.1-0.6 | 230 | 420 | Rc3” |
| RXAF-P100/0.6 | PVC | 100 | 0.1-0.6 | 250 | 430 | Rc4” |
| Other unspecified model/material/connection and DN100 above 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 |
