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Model 4800A High Flow Pneumatic Volume Booster
Brand: Fairchild Industrial ProductsRotork 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], (1,700 kPa) supply pressure and delivers an output pressure up to 150 psig [10.0 BAR] (1,000 kPa).
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.
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 valve
- Pressure balanced supply valve
- Damped diaphragm control chamber
- Two accessory ports connected to the outlet chamber
- Tapped exhaust port.
Specifications
Ambient Temperature Range
- -40° to 93.3° C (-40° to 200° F)
Approvals & Certifications
- CRN
BSP Connection
- 1” BSPP Female
- 1” BSPT Female
- 3/4” BSPP Female
- 3/4” BSPT Female
Diaphragm Material
- Nitrile on Dacron
Elastomers
- Fluorocarbon
- Nitrile
Enclosure, Body Material
- Aluminum
Environmental Protection
- Acceptable for use in Zones 1 & 2 for Gas Atmosphere, Groups IIA & IIB & Zones 21 & 22 for Dust Atmospheres
Exhaust Capacity - Relieving Units Only
- 100 scfm (170 m³/hour)
Flow Capacity
- 500 scfm (850 m³/hour) at psig: 100 (kPa: 700, bar: 7)
Flow Rate
- 5.0 Cv
- 9.0 Cv
Mounting
- Bracket
NPT Connection
- 1” NPT Female
- 3/4” NPT Female
Ratio
- 1:1
Ratio Accuracy
- 0.5 % of psi: 100 (kPa: 700, bar: 7) Output Span
Signal or Output Pressure - Maximum
- psig: 150 (kPa: 1,000, bar: 10)
Supply Pressure - Maximum
- bar: 17
- kPa: 1,700
- psig: 250
Supply Pressure Effect
- psi: 0.10 (kPa: 0.7, bar: 00.7) for psi: 100 (kPa: 700, bar: 7) Change in Supply Pressure
Trim Material
- Stainless Steel
- Zinc-Plated Steel
