DeZurik G6-C4 Посібник - Сторінка 15

Переглянути онлайн або завантажити pdf Посібник для Контролер DeZurik G6-C4. DeZurik G6-C4 16 сторінок. Cylinder operated actuator

Changing Mounting Positions

The actuator can be mounted in 90 increments around the valve shaft.

1. Discontinue flow, relieve pipeline pressure and close valve.

Accidental operation of power actuator can cause personal injury or equipment damage.

Disconnect and lock out power to actuator before servicing.

2. Remove the actuator from the valve. See "Removing Actuator" section.

3. Rotate the actuator to the desired position.

4. Install the actuator on the valve. See "Installing Actuator" section.

Condition

Actuator closes to wrong

position

Actuator opens to wrong

position

Actuator will not fully operate

valve

Actuator rotates wrong

direction

August 2012

Cylinder Operated G-Series Actuator

Possible Cause

Closed position stop is set

incorrectly

Open position stop is set

incorrectly

Cylinder pressure is low

Piston seal in cylinder is leaking

Pipeline obstruction in valve is

preventing closure

Air connections to cylinder are

incorrect

Page 15

DeZURIK

Corrective Action

Adjust closed position stop. See

Adjusting Position Stops section

Adjust open position stop. See

Adjusting Position Stops section

Increase cylinder pressure. Do

not exceed 100 psi (69 kPa).

Replace piston seal(s). See

Cylinder instructions.

Remove obstruction

Reverse air connections to

cylinder

D10455