scotch york pneumatic actuators is widely used for heavy calibre quan-turn valves, such as ball valves, butterfly valves etc.

1. Overview

AW pneumatlc actuators are divided to double-acting and single-acting (spring return ) with two separated cylinders and double pistons. It is easy to make actuator with huge size cylinder and output torque by this design;lnner of cylinder and piston axis are coated with hard chromium that has good anti-friction. The output torque of AW actuator is good for opening, closing and adjusting of big size ball valves & butterfly valves. meanwhile it fits 90 degree rotary occasion.

2. Technical data

3. Model Number

4. Actuator Selection & Installation
When select the actuator, the torque of valve must be identified firstlγ, then consider the fluid; Add 25% security value when it is steam or non-Iubricated; Add 60% security value when it is non-Iubricated dry gas media; Add 100% security value when it is non-Iubricated gas transmission particles media; Add 20% security value when it is clean and no friction lubrication media; Then check the double-acting or single-acting type torque form according to air source pressure, and the model of actuator can be chosen correctly.
5. Actuator & Accessory Function
Double - acting pneumatic actuator;Double position control of valve's open or close Spring Return: Valve open or close automatically when circuit ,gas is cut off or failure (Explosion-prool offer available) Single-control solenoid valve: Valve opens or closes when power on , vice versa(explosion-proof offer available) Double-control solenoid valve: Valve opens when one coil is power-on. Valve closes when another coil is power-off. It has memory-save function (explosion-proof offer available) Limit Switch 60x: Long -distance transmission of valve position signal (explosion-proof offer available) Electric Locato r: Regulate and control the flow of media accord ing to current signal (Standard 4-20mA)
(explosion-proof offer avai lable)
Pneumatic Locator; Regulate and control the flow of media according to pressure signal IS tandard 0.02- 0.1MPa)
Electrical Converters: It converts current signal into pressure signal, and used with pneumatic locator (explosion-proof offer available)
Air Source Treatment Triple-Unit: It includes pressure reducer , filter, oil mist and has air pressure -stability,air source - cleaning ,parts - lubrication functions
Manual Operation Institutions: It can be manual operated if automatic operation is out of control
6. Order Notice
Pneumatic valve is complex intelligent-control instrument that is a combination of pneumatic components . Users must choose accessories detailed according to their requirements , and note on
technology contracts
1). Pneumatic Actuators , (1) Double-Acting ,(2) Single-Acting ,(3) Model
2). Solenoid Valve, (1) Single-Control Solenoid Valve ,(2) Double-Control Solenoid Valve ,(3) Voltage ,(4) Explosion-Proof Type
3). Feedback Signal , (1) Mechanical Switches ,(2) Approachable Switches, (3) Output Current Signal ,(4) Voltage ,(5) Explosion-Proof Type
4) Locator: (1) Electric Locator, (2) Pneumatic Locator, (3) Current Signal,(4) Air Pressure Signal ,(5) Electrical Converter,(6) Explosion-Proof Type
5). Air Source Treatment Triple- Unit (1 )Filter & Pressure Reducer Valve ,(2)Oil Mist
6). Manual Operation Institution
7). Special interface Size
8). Special Order

7. Double-Acting Type Work Theory

8. Single-Acting Type Work Theory

9. Adjusting Type Work Theory(With Electric Locator 

10. Double-Acting Type Output Torque

11. Single-Acting Type Output Torque

12. Cylinder Volume & Air Consumption