Valve Actuator Eng

8/6/2019 Valve Actuator Eng

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An Introduction

Copyright, 2010 Rotork Controls, Indonesia Office


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Valvey Ball Valvey GateValvey DoubleBlock and Bleed Valvey GlobeValvey ButterflyValve

Type of valve:

From stem/shaft movement :

Quarter Turn (Ball Valve, Butterfly Valve)

Multi turn (Gate Valve, DBB Valve)

Sliding (Globe Valve)


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Ball Valve


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Gate Valve


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Double Block And Bleed Valve


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Globe Valve


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Butterfly Valve


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Why we need actuator?


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Actuator

Valve

Directional

Control

Unit

Actuator

Motor/

Piston

Open

Close

Power Supply

Control Signal


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Actuator Multi turn - rising stem (Gate Valve, DBB):

Quarter turn (Ball Valve, Butterfly Valve) :

IQ Range A Range IB Gearbox

Combined with

Bevel Gear iftorque is high

AQ Range

For small valveIW Gearbox

For big valve:

IQ Range +

IW (worm) Gearbox

IQT Range


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Sliding stem (Globe Valve) :

used for modulating control valve (flow, pressure)

Solid state starter, Up to 1200 starts per hour

Analog input signal by Folomatic Reliability in feedback

Can be used to replaceelectro hydraulic actuator

IQM (Modulating) Range


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Perkembangan Sistem Kontrol

Actuator1. MCC/ Contactor Starter - Separate

In actuator only has Torque/Limit Switch and Motor

MCC (Motor Control Centre) in control room or power house

3 Phase

Power

MCC

Reversing

Contacter

Starter

Local Control

PLC /Control Panel


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2. Actuator with Integral Contactor Starter

3 Phase

Power

PLC /

Control Panel

Actuator with Integral Contactor Starter and Local Pushbutton


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3. Two wire control PakScan


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Modbus/Profibus/FF

Valve Actuator Eng

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