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.
➣ Large diaphragm cover design
➣ Pressure regulating high precision.
➣ operated convenient
Temperature: -40℃ to ＋100℃(above 100℃ consult technical)
➣ Low maintenance cost, long maintenance interval, easy assembly and disassembly, simple seat seal inspection and few spare parts
Excellent control performance: Control high precision, fast response, good stability
➣ Compressed air pressure 0-7bar
| ➣ control range: 0-0.1, 0-0.4, 0-0.8, 0-1.5, 0-3bar |
| Safety Test Pressure: 1.5 times of max. Inlet pressure |
| Leak rate: Without gas leakage |
| Temperature Range: -40℃ to ＋100℃(above 100℃ can be custom) |
| Cv value: 2.6, 4.1, 6.6, 11, 13, 17, 75, 80, 120 |
| ➣ 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, stainless steel pTFE-lined |
| Bonnet: 304 |
| Diaphragm: BR, VITON, PTFE, EPDM, PEEK |
| Valve Seat: NBR, VITON, PTFE, PEEK |
| Spring: 304 |
| Plug Stem: 304, 316L |
| O-ring: NBR, EPDM, Viton, PTFE, RPTFE |
| Models | Size | Ports thread / flange | Cv value |
| Thread air operated back pressure valve ARLBT Flange air operated back pressure valve ARLBF |
DN15 | 1/2" | 2.6 |
| DN20 | 3/4" | 4.1 | |
| DN25 | 1" | 6.6 | |
| DN32 | 1-1/4" | 11 | |
| DN40 | 1-1/2" | 13 | |
| DN50 | 2" | 17 | |
| DN65 | 2.5" | 75 | |
| DN80 | 3" | 80 | |
| DN100 | 4" | 120 |
| Ordering GuideORDERING INFORMATION | |||||||
| Series | Material | Thread ports | Inlet pressure | Control pressure | Pressure Gauges | ||
| ARLBT thread air operated back pressure valve ARLBF flange air operated back pressure valve |
G | G | |||||
|
S:304 L:316L CF: PTFE-lined |
1/2"(15) 3/4"(20) 1"(25) 1-1/4"(32) 1-1/2"(40) 2"(50) 2.5"(65) 3"(80) 4"(100) |
G:0.3Mpa D:0.6Mpa F:1Mpa |
F:0-0.1bar G:0-0.4bar H:0-0.8bar K:0-1.5bar L: 0-3bar |
W: Without pressure gauge G: With pressure gauge (MPa) P: With pressure gauge (Psig/bar) |
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