The pilot back pressure valve controls main-valve upstream pressure by adjusting the regulator outlet pressure, pressure can be set anywhere within the adjusting range, continuous control, achieving continuous, stepless back pressure regulation, supports remote, pneumatic and other control modes, Upstream back pressure is controlled by the regulator outlet pressure, may be equal, or varied at a set ratio, air control ratio 1: 1 to 1:100. Pilot-operated back pressure valves suit applications requiring remote and precise pressure control.
● Stable outlet pressure.
● For low-pressure liquid and gas lines.
●Valve body cavity and surfaces are high-precision polished.
● Meets high-cleanliness requirements such as hygiene, cleanroom and bioprocess.
Applicable Media: Gas, liquid, steam etc..
End connection type: Tri-Clamp, union thread, welded, flange.
Size: 1/4”-2”(DN6-DN50).
● Can be controlled remotely, and other control modes including pneumatic control.
● Compressed air pressure 0-7bar.
● Sensitive operation, high precision.
● Multiple pilot reducing valves available.
| ➣ control pressure: 0-25, 0-50, 0-100, 0-250, 0-360psig |
| Safety Test Pressure: 1.5 times of max. Inlet pressure |
| Temperature Range: -40℃ to ＋100℃(above 100° consult technical) |
| Leak rate: Without gas leakage |
| Cv value: 0.2, 0.6, 1.2, 2.4, 3.2, 4, 5.1, 7, 11, 13, 17, 25, 30, 48 |
| ➣ air control ratio 1:1 to 1:100 |
| ➣ linearity: Within ±5% F.S |
| ➣ sensitivity: Within ±3% F.S |
| ➣ accuracy: Within ±5% F.S |
| Body: 316L, 304 |
| Bonnet: 304 |
| Valve Seat: PCTFE, PTFE, Vespel |
| ➣ Seals: PCTFE, PTFE, EPDM, FKM, VMQ(silicone rubber) |
| Plug Stem: 316L, 304 |
| Ordering GuideORDERING INFORMATION | ||||||||
| Series models | Body material | Body port layout | Control pressure | Pressure Gauges | Inlet gas type | Outlet gas type | Options | |
| XSR220 pilot back pressure valve |
L | A | G | G | 00 | 00 | P | |
|
L:316L S:304 |
A B |
H:0-360psig G:0-250psig I:0-100psig K:0-50psig L:0-25psig |
G: With pressure gauge (Mpa) P: With pressure gauge (psig/bar) W: Without pressure gauge |
00: 1/4"(clamp 50.5) 02: 3/8"(clamp 50.5) 04: 1/2"(clamp 50.5) 06: 3/4"(clamp 50.5) 08: 1"(clamp 50.5) 10: 1- 1/4"(clamp 50.5) 12: 1-1/2"(clamp 64) 14: 2"(clamp 77.5) Other configurations available on request |
00: 1/4"(clamp 50.5) 02: 3/8"(clamp 50.5) 04: 1/2"(clamp 50.5) 06: 3/4"(clamp 50.5) 08: 1"(clamp 50.5) 10: 1- 1/4"(clamp 50.5) 12: 1-1/2"(clamp 64) 14: 2"(clamp 77.5) Other configurations available on request |
P: Panel-mount mounting | ||
