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  Description

The Hearken Part-Turn Pneumatic Actuators provide a uniform torque in a sleek case that is used both for the double acting and single acting, The Pneumatic Actuators are avaliable with a variety of accessories and various options, we supply the drives individually or directly on a fully assembled fitting.  The actuators meet ISO5211/DIN3337 ,VDI/VDE 3845 for accessories,Every actuator is hydraulically tested,certified and guaranteed for a minimum of 500,000 Cycles. 


  Main Features & Characteristics

316L/316/304 Stainless Steel Electrochemical Polished 
Stainless Steel  End Caps
Position Indicator with NAMUR slot
Blow-Out Proof Pinion
Dual Opposed Rack Pistons
Linear Torque Output (DA Actuator)
Adjustable Travel Stops
NAMUR Solenoid Mount Design


  General Applications

HPAS Series Quarter-turn Pneumatic Actuators are specifically designed and remote for control of any quarter-turn application, We can provide a wide range of torque outputs to suit quarter turn ball valves, Butterfly Valves or Rotary plug valves, dampers etc..for complete valve automation solutions.


   Working Pressure :From 2 bar up to 8 bar. 

-Standard Temperature: -20℃+80℃

-Low Temperature: -50℃+80℃

-High Temperature: -15℃+150℃ 


   Operating Conditions

Operating media: dry or lubricated air, the non-corrosive gases or oil 

Travel Adjustment: Have adjustment range of ±5º for the rotation at 90º

Lubrication: Under normal operating condition,not need accrete lubricant. 

Application: Either indoor or outdoor.  


   Range of Standard Accessories are availiable for direct mounting

-Solenoid Valve

-Limit Switchboxes

-Positioners 

-Declutchable Manual Override Gearbox 

-High Visibility Indicator 


Material Of Parts

No.

Description

Qty.

Material

No.

Description

Qty.

Material

1

Indicator Screw

1

ABS

15

O-ring Piston

2

VITON or EPDM

2

Position Indicator

1

ABS

16

Bearing Piston

2

Engineering Plastic

3

Spring Clip

1

Spring Steels

17

Guide

2

Nylon66

4

Metal Washer

1

Stainlness Steel

18

Spring

*

Spring Steels

5

Outer Washer

1

Engineering Plastic

19

Spring Left Sleeve

*

Nylon66

6

 Body

1

Stainlness Steel

20

Piston Right Sleeve

*

Nylon66

7

O-ring Pinoin Top

1

VITON or EPDM

21

Spring Sleeve Screw

*

Stainlness Steel

8

Bearing Pinoin Top

1

Engineering Plastic

22

O-ring End Cap

2

VITON or EPDM

9

Inner Washer

1

Engineering Plastic

23

End Cap

2

Stainlness Steel

10

Pinion

1

Stainlness Steel

24

Cap Screw

8

Stainlness Steel

11

Bearing Pinoin Bottom

1

Engineering Plastic

25

Adjust Screw

2

Stainlness Steel

12

O-ring Pinoin Botton

1

VITON or EPDM

26

Nut Adjust Screw

2

Stainlness Steel

13

Plug

2

NBR

27

Washer Adjust Screw

2

Stainlness Steel

14

Piston

2

Stainlness Steel

28

O-ring Adjust Screw

2

VITON or EPDM

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