The Fairchild 63 consists of a no-brass construction, which is well-suited to harsh environments. It featuers an integral relief valve, tapped exhaust and internal and external epoxy finish for superior corrosion resistance.

Features

• The no-brass construction is well suited to harsh environments.
• Internal and external epoxy finish for superior corrosion resistance
• Non-bleed design to reduce consumption
• Integral Relief Valve
• A Gauge Port provides convenient pressure gauge mounting.
• The standard 5-micron filter minimizes internal contamination.
• The Filter Dripwell contains a Drain Plug to easily drain trapped liquids.
• Standard Tapped Exhaust
• Soft Relief Seat minimizes air loss
• Canadian Registration Number (CRN) certification for all territories and provinces.

Operating Principles

When you turn the Adjustment Screw to a specific setpoint, the Spring exerts a downward force against the top of the Diaphragm Assembly. This downward force opens the Supply Valve. Output pressure flows through the Outlet Port and the passage to the Control Chamber where it creates an upward force on the bottom of the Diaphragm Assembly.

When the setpoint is reached, the force of the Spring that acts on the top of the Diaphragm Assembly balances with the force of output pressure that acts on the bottom of the Diaphragm Assembly and closes the Supply Valve.

When the output pressure increases above the setpoint, the Diaphragm Assembly moves upward to close the Supply Valve and open the Exhaust Valve. Output pressure flows through the Exhaust Valve and out of the Exhaust Vent on the side of the unit until it reaches the setpoint.

Specifications

Supply Pressure
250 psig, [17 BAR], (1700 kPa) Maximum
Flow Capacity (SCFM)
25 (42.5 m3/HR) @ 100 psig, [7 BAR], (700 kPa) supply and 20 psig, [1.5 BAR], (150 kPa) setpoint
Exhaust Capacity (SCFM)
0.8 (1.36 m3/HR) where downstream pressure is 5 psig, [.35 BAR], (35 kPa) above 20 psig, [1.5 BAR], (150 kPa) setpoint. (0.8 scfm for 120 # unit)
Maximum Supply Pressure
250 psig, [14 BAR], (1400 kPa)
Consumption
Undetectable
Supply Pressure Effect
Less than 1.25 psig, [.09 BAR], (9 kPa) change for 100 psig, [7.0 BAR], (700 kPa) change in supply pressure (1.90 psig for 120 # unit)
Sensitivity
1” (2.50 cm) Water Column
Temperature Range
-40°F to + 160°F, (-40°C to + 71°C)
Materials of Construction
Body and Housing: Epoxy Coated Aluminum
Trim: Stainless Steel, Nickel Plated Steel
Elastomers: Nitrile

Catalogue Pages including ordering details

Installation, Operation and Maintenance Instructions