Description

Masoneilan 4700/4800 Pneumatic Positioners

Product name : Masoneilan 4700E/4700p – 4800E/4800P Pneumatic and Electropneumatic Positioners

Condition: Brand New

Origin: GE ( USA)

Masoneilan 4700/4800 Pneumatic Positioners are field-proven positioners from GE Oil & Gas that use a precision feedback cam to provide accurate positioning, fast response, and customized control characteristics for control valves. These positioners can be used with either rotary or reciprocating actuators. On rotary actuators, the cam is mounted directly on the shaft. When mounted on reciprocating actuators, a simple, rugged turnbuckle and lever assembly couples stem motion to the cam

Features :

One Multi-lobe Cam:  The cam provides field-changeable linear, split-range linear and equal percentage control characteristics. Custom characteristics are available on special order.

Zero Adjustment:  Adjustment of the positioner zero can easily be accomplished by means of the adjustable spring button. Further zeroing can be performed through the turnbuckle assembly on linear motion actuators.

Corrosion-resistant Materials: Premium performance is the standard on the models 4700P/4700E and 4800P/4800E positioners. Internal components are manufactured of corrosion-resistant materials for protection against the harshest environments ..more

Specification:

Type: Cam feedback, pneumatic, force balanced; electropneumatic positioner uses current to pneumatic converter to generate pneumatic operating signal.
Action: Direct: Increasing signal increases output
Reverse: Increasing signal decreases output
Note: Reverse Action is available only on
4700P/4800P Pneumatic Positioner

Characteristics: Linear
Equal percentage
Custom

Maximum air consumption: 4700: 0.5 Nm3 /h – 1.7 barg supply
4800: 0.9 Nm3 /h – 1.7 barg supply
Output and exhaust capacity: 4700: 13.5 Nm3 /h – 4.1 barg supply
4800: 24 Nm3 /h – 4.1 barg supply

Supply pressure influence: Less than 0.37 percent stroke change per 100 mbar supply change.
Maximum air supply rating: Dictated by actuator, but never greater than 100 psig.
Connections: Pneumatic: 1/4″ NPT (4700) or 3/8″ NPT (4800)
Electrical: 1/2″ NPT or M20
Weight: 4700P – 1.6 kg (3.5 lbs) 4800P – 1.9 kg (4.2 lbs)
4700E – 2.1 kg (4.7 lbs) 4800E – 2.4 kg (5.3 lbs)

For Complete Dataheet : TSP Controls – 4700-4800 Positioners Datasheet – 2

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