Is a compact precision polymer pressure regulator for high performance applications where space or weight may be limited or material compatibility issues require the use of polymer structure regulators. Stability of regulating pressure under changing flow conditions is maintained through the use of suction tubes that adjust the supply valve according to the flow rate. With a control sensitivity of 5 inches of water column, the Model 55 pneumatic regulator provides accurate and reliable accuracy to maintain the desired set point regardless of changes in supply pressure or conditions. Fairchild Model 50 pressure regulators will handle large supply pressures of 150 psi, 10 BAR, and provide four (4) set point pressure ranges from 0-10 psi, 0-0.7 BAR, 0-70 kPa to 2-100 psi, 0.1-7 bar, 15-700 kPa.