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Model 4800A - 500 SCFM [850 m3/HR] Forward/Exhaust High Flow No Bleed Volume Booster with Bypass Valve (M4800A)

Features

Cv = 9; Flow capacity of 500 SCFM (850 m3/HR).
Ratio Accuracy of 0.5%.
Fixed deadband between the operation of the supply valve and exhaust valve.
Integral bypass needle valve.
Soft seat supply and exhaust valves
Pressure balanced supply valve
Damped diaphragm control chamber.
Two accessory ports connected to the outlet chamber.
Tapped exhaust port.

Benefits

Fast response for quick valve opening and closing times.
Highly Accurate valve control for your system.
Provides accurate and stable final positioning of the valve.
Optimizes response time and stability.
Provide efficient leak free operation and prevents hunting, especially when used with modern electronic feed & bleed type Valve Positioners.
Maintains deadband specification preventing changes in control characteristics when supply pressure changes.
Protects valves from damaging oscillation under high flow conditions.
Provide convenient access to the outlet for additional control accessories and pressure monitoring.
Allows for easy collection of exhaust air or use of a silencer.

Fairchild’s M4800A is a High Flow Pneumatic Volume Booster specifically designed for Valve and valve actuation systems. With its Cv of 9 in both forward and exhaust modes, this pilot operated booster provides fast response and accurate control for valve actuation. In addition, the M4800A has an integral bypass valve, for optimum tuning and adjustment, even while in operation, to obtain maximum performance on opening and closing times with minimal overshoot or oscillation. In its pilot operated regulator design, the M4800A handles up 250 psig, [17.0 BAR], (1700 kPa) supply pressure and delivers an output pressure up to 150 psig [10.0 BAR] (1000kPa). The Fairchild Model 4800A Booster provides a flow capacity of 500 SCFM (850 m3/HR), which equates to a Cv factor of approximately 9 in both forward and exhaust modes.

Other Pneumatic Volume Boosters

Model 2000 - 40 SCFM [68 m3/Hr] Forward/Exhaust Flow No Bleed Volume Booster (M2000)	Model 20 - 45 SCFM [76.5 m3/Hr] Forward/Exhaust Flow Volume Boosters (M20)	Model 4500 - 150 SCFM [255 m3/Hr] Forward/Exhaust High Flow No Bleed Volume Boosters (M4500A)	Model 200 - 1800 SCFM [3058 m3/Hr] Forward Ultra High Flow Volume Booster (M200)
Model 200XLR - 1800 SCFM [3058 m3/Hr] Forward/Exhaust Ultra High Flow Volume Boosters (M200XLR)	M20 Back Pressure Pneumatic Booster (M20BP)	M4500A Back Pressure Pneumatic Booster (M4500ABP)	Model 4900A - 500 SCFM [850 m3/HR] Forward/Exhaust High Flow No Bleed Volume Booster (M4900A)

Specifications

Max Supply Pressure:
250 psig [17 BAR]
Max Output Pressure:
150 psig [10 BAR]
Flow Capacity:
500 SCFM (850 m3/HR)
Accuracy:
0.5 psi (typ)

Downloads

M4800A Specs

M4800A IOM Sheets