The primary function of a back pressure valve is to prevent liquid from flowing or siphoning due to gravitational forces. In addition, it helps to reduce flow and control pressure fluctuations.
Our stainless steel back pressure valves find extensive usage in various industries including chemical, water treatment, and laboratory settings. Furthermore, these valves are well-suited for air and a range of corrosive liquids.
CORROSION-RESISTANCE FOR CHEMICAL APPLICATIONS
Main features of back pressure valves:
They have a diaphragm structure spring that allows for adjustable pressure.
The only medium contacting parts are the lower valve body and the diaphragm, which are assembled with a sealing rib for effective and sensitive sealing.
Back pressure valves come with EPDM lining PTFE with a cloth-type diaphragm that has a long service life and excellent sealing properties. Additionally, PTFE type diaphragms provide high temperature resistance and corrosion resistance.
| Models | Material | Dia（mm） | Pressure（MPa） | Size | Connection | |
| D(mm)Lower valve body | H(mm) | |||||
| RXBF-P6/1.0 | PVC | 6 | 0.1-1.0 | 64.7 | 82 | Rc1/8” |
| RXBF-P8/1.0 | PVC | 8 | 0.1-1.0 | 64.7 | 87 | Rc1/4” |
| RXBF-P10/1.0 | PVC | 10 | 0.1-1.0 | 64.7 | 89 | Rc3/8” |
| RXBF-P15/1.0 | PVC | 15 | 0.1-1.0 | 64.7 | 94 | Rc1/2” |
| RXBF-P20/1.0-N | PVC | 20 | 0.1-1.0 | 64.7(for pumps flow≤250L/h) | 104 | Rc3/4” |
| RXBF-P20/1.0 | 87 | 123 | ||||
| RXBF-P25/1.0 | PVC | 25 | 0.1-1.0 | 87 | 128 | Rc1” |
| RXBF-P32/1.0 | PVC | 32 | 0.1-1.0 | 117 | 175 | Rc1+1/4” |
| RXBF-P40/1.0-N | PVC | 40 | 0.1-1.0 | 117(for pumps flow≤2500L/h) | 185 | Rc1+1/2” |
| RXBF-P40/1.0 | 137 | 240 | ||||
| RXBF-P50/1.0 | PVC | 50 | 0.1-1.0 | 167 | 260 | Rc2” |
| RXBF-P65/1.0 | PVC | 65 | 0.1-1.0 | 177 | 325 | Rc2+1/2” |
| RXBF-P80/0.6 | PVC | 80 | 0.1-0.6 | 230 | 420 | Rc3” |
| RXBF-P100/0.6 | PVC | 100 | 0.1-0.6 | 250 | 430 | Rc4” |
| RXBF-S6/1.0 | SUS304/316L | 6 | 0.1-1.0 | 64.7 | 82 | Rc1/8” |
| RXBF-S8/1.0 | SUS304/316L | 8 | 0.1-1.0 | 64.7 | 87 | Rc1/4” |
| RXBF-S10/1.0 | SUS304/316L | 10 | 0.1-1.0 | 64.7 | 89 | Rc3/8” |
| RXBF-S15/1.0 | SUS304/316L | 15 | 0.1-1.0 | 64.7 | 94 | Rc1/2” |
| RXBF-S20/1.0-N | SUS304/316L | 20 | 0.1-1.0 | 64.7(for pumps flow≤250L/h) | 104 | Rc3/4” |
| RXBF-S20/1.0 | 87 | 123 | ||||
| RXBF-S25/1.0 | SUS304/316L | 25 | 0.1-1.0 | 87 | 128 | Rc1” |
| RXBF-S32/1.0 | SUS304/316L | 32 | 0.1-1.0 | 117 | 175 | Rc1+1/4” |
| RXBF-S40/1.0-N | SUS304/316L | 40 | 0.1-1.0 | 117 | 185 | Rc1+1/2” |
| RXBF-S40/1.0 | 137 | 240 | ||||
| RXBF-S50/1.0 | SUS304/316L | 50 | 0.1-1.0 | 167 | 260 | Rc2” |
| RXBF-S65/1.0 | SUS304/316L | 65 | 0.1-1.0 | 177 | 325 | Rc2+1/2” |
| RXBF-S80/0.6 | SUS304/316L | 80 | 0.1-0.6 | 225 | 420 | 3”flange type |
| RXBF-S100/0.6 | SUS304/316L | 100 | 0.1-0.6 | 240 | 430 | 4”flange type |
