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3755 Series Pneumatic Volume Booster
Brand: SAMSON Controls Inc
This pneumatic volume booster is mounted between the positioner and actuator.
It supplies the actuator with an air flow output whose pressure corresponds exactly to the signal pressure, except that it has a much higher volume output.
Features- Excellent control accuracy
- Fast dynamic response due to low hysteresis
- Balanced plug ensures constant reversing pressure
- Bypass restriction with linear characteristic
- Bypass restriction setting can be lead-sealed
- Aluminum or stainless steel body material
- Sintered polyethylene filter disk ensures low noise emissions
- Low-noise venting or exhaust port connected to a pipe
- Standard or low-temperature version
- Version with G or NPT thread
Specifications
Brand
Flow Coefficient
- KVS Supply/Exhaust: 2.5 m³/h
- KVS Bypass: 0.3 m³/h
Pressure Ratio
- Signal:output = 1:1
Pressure
- Supply: Max. 10 bar (145 psi)
- Actuator/Signal: Max. 7 bar (101.5 psi)
Connecting Thread
- Supply (SUP): G 3/4 (optionally 3/4 NPT)
- Actuator/output (OUT): G 3/4 (optionally 3/4 NPT)
- Signal (SIG): G 1/4 (optionally 1/4 NPT)
- Exhaust port (EXH): G 1 (optionally 1 NPT) for Model 3755-2 & 3755-2
Environmental Protection
- IP44
- IP66
Approvals & Certifications
- EAC
- SIL 2,3
Material of Construction
- Body: Cast Aluminum, 1.4404 and 1.4571
- Diaphragm: Standard temperature - VMQ, Low-temperature - PVMQ
- Seat-plug seal: VMQ
- Other seals: NBR
- Other external parts: Stainless stee
Ambient Temperature
- Standard -40° to 80° C (-40° to 176° F)
- Low temperature -55° to 60° C (-67° to 140° F)
Service Life
- ≥1 x 10⁷ full strokes
Weight
- 3755-1 (aluminum) : 2.1 kg
- 3755-2 (aluminum): 2.4 kg
- 3755-2 (stainless steel): 5.2 kg
Actuator Type
- Pneumatic
