RLBT/RLBF series low pressure back pressure valves, adopts large diaphragm cover design, designed specifically for micro-pressure and low-pressure service, used for liquid and gas tubing, very high sensitivity.
➣ 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
| ➣ 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 |
| Body: 316L, 304, stainless steel pTFE-lined |
| Bonnet: 304 |
| Diaphragm: NBR, VITON, PTFE, 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 low pressure back pressure valves RLBT Flange low pressure back pressure valves RLBF |
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 | ||
| RLBT low pressure back pressure valves HTRLBTHigh Temperature Back Pressure Valves ARLBT air operated back pressure valve XRLBT pilot back pressure valve LRLBT liquid back pressure valve ERLBT motorised back pressure valve EARLBT proportional 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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| Ordering GuideORDERING INFORMATION | |||||||
| Series | Material | Size | Inlet pressure | Control pressure | Pressure Gauges | ||
| RLBF low pressure back pressure valves HTRLBF high temperature back pressure valve ARLBF air operated back pressure valve XRLBF pilot back pressure valve LRLBF liquid back pressure valve ERLBF motorised back pressure valve EARLBF proportional 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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