The air-operated back pressure valve adjusts back pressure by controlling the compressed air pressure, controlling the upstream fluid 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 air pressure, may be equal, or varied at a set ratio, air control ratio 1: 1 to 1:100. Air-operated back pressure valves suit applications requiring remote and precise pressure control.
● Soft seal between body and diaphragm
Body Thread: 1/4"-2"NPT(F)
● Panel or wall mounting available
● Can be controlled remotely, and other control modes including pneumatic control
● Compressed air pressure 0-7bar, sensitive operation, high precision
● Laboratory
● Gas analysis
● Fluid control
● Petrochemical industry
● Test equipment
| Max. Inlet Pressure: 28inHg(vac), (-14.5psig), 0~-7.5psig |
| ➣ Design test pressure: Max. Rated pressure of 150% |
| Leakage: No internal gas leakage, external ≤2*10-8, atm·mL/s, helium |
| ➣ Operating temperature: -40℃ to ＋100℃(above 100℃ consult technical) |
| Cv value: 0.06~17 |
| ➣ 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, Brass, 304, C276, TA2, PVDF, PTFE, stainless steel pTFE-lined |
| Diaphragm: 316L, C276, PTFE, NBR, VITON, EPDM, PEEK |
| O-ring: NBR, VITON, EPDM, PTFE |
| Valve Seat: PTFE, PCTFE, PEEK, Vespel, 316L |
| Spring: 316L |
| Plug Stem: 316L |
| Ordering GuideORDERING INFORMATION | |||||||
| Series models | Body material | Body port layout | Control pressure | Pressure Gauges | Inlet gas type | Outlet gas type | Options |
| ATY76 air operated back pressure valve |
L | B | D | G | O2 | O2 | P |
|
L:316L B:Brass S:304 C:C276 T:TA2 PD:PVDF PF:PTFE CF: PTFE-lined |
A B |
D:0-0.05MPA(-7.5PSIG) K:0-0.1MPA(-14.5PSIG) |
G: With pressure gauge (Mpa) P: With pressure gauge (psig/bar) W: Without pressure gauge |
00:1/4NPT(F) 02:3/8NPT(F) 04:1/2NPT(F) 06:3/4NPT(F) 08:1"NPT(F) 10:1-1/4"NPT(F) 12:1-1/2"NPT(F) 14:2"NPT(F) Other fitting types available |
00:1/4NPT(F) 02:3/8NPT(F) 04:1/2NPT(F) 06:3/4NPT(F) 08:1"NPT(F) 10:1-1/4"NPT(F) 12:1-1/2"NPT(F) 14:2"NPT(F) Other fitting types available |
P: Panel-mount mounting | |
