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Miniature Back Pressure Regulator (M50BP)


  • Compact size
  • Lightweight unit
  • Polymer construction
  • Separate control chamber isolates the Diaphragm from the main flow
  • Non-rising adjustment knob
  • Manifold mount capability
  • Push to connect fittings in all ports


  • Excellent choice for tight space applications
  • Works well in portable or other weight limited conditions
  • Corrosive resistant with good material compatibility
  • Maintains compact size in use
  • Versatile use and easy mount
  • Easy to install or change out in the field
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The Fairchild Model 50BP is a compact precision polymer back pressure regulator for high performance applications where space or weight may be limited or material compatibility concerns dictate use of a polymer construction regulator. Stability of regulated pressure is maintained under varying flow conditions through the use of an aspirator tube which adjusts the relief valve in accordance with the flow velocity. The Model 50BP pneumatic regulator features control sensitivity of 5" water column to deliver consistent and reliable precision accuracy to maintain your desired set point regardless of system pressure changes or conditions. The Fairchild Model 50BP back pressure regulator will handle a 150 psi, 10 BAR maximum system pressure and offers four (4) set point pressure ranges from 0-10 psi, 0-0.7 BAR, 0-70 kPa up to 2-100 psi, 0.1-7 BAR, 15-700 kPa.

Max Supply Pressure:
150 psig [10 BAR]
Max Output Pressure:
100 psig [7 BAR]
Flow Capacity:
10 SCFM (17.0 m3/HR)
0.3 psi (typ)