The Fairchild 50 is a compact, lightweight unit, which can handle high supply pressure and provides high accuracy for precision control. The Venturi design compensates downstream pressure droop under flowing conditions.

Features

• Compact size
• Lightweight unit
• Handles high supply pressure
• High accuracy for precision control
• Polymer construction for corrosive resistance
• Venturi design compensates downstream pressure droop under flowing conditions
• Non-rising adjustment knob
• Manifold mount capability
• Push to connect fittings in all ports
• Separate control chamber isolates the Diaphragm from the main flow to eliminate hunting and buzzing

Operating Principles

When the setpoint is reached, the upward force of the output pressure that acts on the bottom of the Diaphragm balances with the downward force that acts on the top of the Diaphragm. If the output pressure rises above the setpoint, the force that acts on the bottom of the Diaphragm moves the Diaphragm Assembly upward to close the Supply Valve and open the Relief Valve. Excess output pressure exhausts through the Vent in the unit until it reaches the setpoint.

Specifications

Flow Capacity
10 SCFM (17.0 m3/HR) @ 120 psig, [8 BAR], (800 kPa) supply
Exhaust Capacity
2 SCFM (3.4 m3/HR) where downstream pressure is 15 psig, [1.0 BAR], (100 kPa)
Maximum Supply Pressure
150 psig, [10 BAR], (1000 kPa)
Supply Pressure Effect
0.1 psig for 10 psig change in supply
Sensitivity
5" (12.7cm) Water Column
Ambient Temperature
0°F to +160°F, (-17.8°C to 71.1°C)
Materials of Construction
Body and Housing: Glass Filled Acetal
Valve: Stainless Steel
Diaphragm: Polymer Reinforced Nitrile

Catalogue Pages including ordering details