The motorised back pressure valve consists of a linear electric actuator and a low-resistance straight-through single-seat valve body. The electric actuator has an integrated electronic design, with built-in servo amplifier, remote control possible, computer control, a control signal (4-20mA DC or 0-5VDC) plus the power supply sets the valve opening, reach for pressure, flow rate of control. Features sensitive operation, simple wiring, high flow capacity, compact size and high regulation accuracy.
● Provides a pressure differential on both sides of the back pressure valve piping
● Prevents siphoning, Eliminates dosing variations caused by pressure fluctuations at the injection point
● Used together with pulse dampers to reduce water-hammer damage to the system
● Protects piping, elbows and fittings, reduces the impact of pressure fluctuations
● Delivers its full effect only when used with other line components such as pulse dampers
● Can be controlled remotely, can be controlled by computer, PLC control
● Sensitive operation, high precision
| ➣ control pressure control range: 0-1bar, 0-3bar, 0-7bar, 0-10bar |
| Safety Test Pressure: 150% max. Rated pressure |
| Temperature Range: -40℃ to ＋100℃(above 100℃ consult technical) |
| Internal Leakage Rate: Without gas leakage |
| Cv value: 0.6, 1.2, 2, 2.6, 3.8, 5.1, 8, 11, 13, 17, 25, 36, 50, 75 |
| Voltage: AC24V and DC24V |
| Input signal: 0-5mA, 0-10mA, 4-20mA |
| ➣ 316L, 304, C276, TA2, PVC, PVDF, PTFE, stainless steel pTFE-lined |
| Diaphragm: 316L, C276, PTFE, NBR, VITON, EPDM, PEEK, PTFE composite diaphragm |
| O-ring: NBR, VITON, EPDM, PTFE, RPTFE |
| Valve Seat: PTFE, PCTFE, PEEK, Vespel, 316L |
| Spring: 316L |
| Plug Stem: 316L |
| Ordering GuideORDERING INFORMATION | |||||||
| Series models | Body material | Body port layout | Nominal Diameter (DN) | Connection RC/NPT | Control pressure | Diaphragm | Pressure Gauges |
| EWBF motorised back pressure valve |
L:316L S:304 C:C276 T:TA2 P:PVC PD:PVDF PF:PTFE CF: PTFE-lined |
A B |
6 32 8 40 10 50 15 65 20 80 25 100 |
1/8" 1.25" 1/4" 1.5" 3/8" 2" 1/2" 2.5" 3/4" 3" 1" 4" Flanged connection available on request, code: F |
I:0-1bar H:0-3bar G:0-7bar Q:0-10bar |
1, 316L 2, C276 3, PTFE 4, NBR 5, VITON 6, EPDM 7, PEEK 8, PTFE composite diaphragm |
G: With pressure gauge (MPa) P: With pressure gauge (psig/bar) W: Without pressure gauge |
