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.
●Body and diaphragm adopts hard sealed type.
Body Thread: 1/4"NPT(F)3/8"NPT(F).
●Can be controlled remotely, and other control modes including pneumatic control.
●Compressed air pressure 0-7bar, sensitive operation, high precision.
| ➣ max. Control pressure: 800psig |
| ➣ control pressure: 0~25, 0~50, 0~100, 0~250, 0~300, 0~500, 0~800psig |
| Safety Test Pressure: 1.5 times of max. Inlet pressure |
| Temperature Range: -40℃ to ＋100℃(above 100℃ consult technical) |
| Cv value: 0.06, 0.08, 0.2, 0.4, 0.6 |
| ➣ 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, C276, TA2, PVDF, PTFE, stainless steel pTFE-lined |
| Bonnet: 304 |
| Diaphragm: 316LC276 |
| Valve Seat: PCTFE, PTFE, Vespel |
| 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 |
| L | A | G | G | 00 | 00 | P | |
| ATY71 air operated back pressure valve |
L:316L B:Brass C:C276 T:TA2 PC:PVC PD:PVDF PF:PTFE CF: PTFE-lined |
A B |
L:0-25psig K:0-50psig I:0-100psig G:0-250psig F:0-300psig E:0-500psig D:0-800psig |
G: With pressure gauge (Mpa) P: With pressure gauge (psig/bar) W: Without pressure gauge |
00:1/4NPT(F) 01:1/4NPT(M) 02:3/8NPT(F) 10:1/8 tube fitting 11:1/4 tube fitting 12:3/8 tube fitting 91:1/4"VCR(F) 92:1/4"VCR(M) 93:1/4" welded tube Other fittings available |
00:1/4NPT(F) 01:1/4NPT(M) 02:3/8NPT(F) 10:1/8 tube fitting 11:1/4 tube fitting 12:3/8 tube fitting 91:1/4"VCR(F) 92:1/4"VCR(M) 93:1/4" welded tube Other fittings available |
P: Panel-mount mounting |
