4858ANNNF Fairchild型号4800A气动容积增压器1:1比，美国仙童
4858ANNNF Fairchild型号4800A气动容积增压器1:1比，美国仙童
4858ANNNF Fairchild型号4800A气动容积增压器1:1比，美国仙童
Rotork Fairchild Products Model 4800A Pneumatic Volume Booster, 1:1 ratio, 250 psi [17 BAR] supply, 500 SCFM [850m3/Hr]@100 psi supply/20 psi set, 150 psi [10 BAR] max output, 1 FPT line, 1/4 FPT gau/sig, 3/4 FPT exhaust, no feedback port, Zn Plated Steel trim.
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Manufacturer: Fairchild Products
Accuracy: 0.50 Psi
Ambient Temperature: -40° To 200 °F (-40° To 93.3 °C)
Base Model: 4858A
Body Material: Aluminum
Elastomer: Nitrile On Polyester
Exhaust Capacity: 100 SCFM [170m³/Hr] Where Downstream Pressure Is 5 Psi Above 20 Psi Setpoint
Exhaust Type: Straight (Standard)
ExhaustCv: 5
Flow Capacity: 500 SCFM
FlowCv: 5
Mounting: Wall (21363-1 Bracket Required)
Operator: Pneumatic Pilot Signal
Options: [5] Cv 5 [N] Nitrile [N] No Feedback Port [F] Zinc Plated Steel Trim
Pipe Size: 1 FPT
Pressure Range: 0 To 150 Psi
Product Type: Pneumatic Volume Boosters
Ratio: 1:01
RatioAccuracy: 0.5% Of 100 Psi Output Span
Sensitivity: 1.5 Psi
Supply Pressure: 250 Psi
Product Category: Pneumatic Volume Boosters
Product Description
The Rotork Fairchild Model 4800A is a High Flow Pneumatic Volume Booster specifically designed for valve and valve actuation systems. With a 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 BAR] (1700 kPa) supply pressure and delivers an output pressure up to 150 psig [10 BAR] (1000kPa). The Fairchild Model 4800A Booster provides a flow capacity of 500 SCFM [850m3/Hr]), which equates to a Cv factor of approximately 9 in both forward and exhaust modes.
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
Certification for use in all Canadian territories and provinces
NOTES: Oil free air must be applied to the regulator. Use a filter to remove dirt and entrained liquid in the air line ahead of the regulator. If an air line lubricator is used, it MUST be located downstream of the regulator, to avoid interference with regulator performance.
