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Home > Products > Other Valves > 1 1/2'' dn40 flanged 2 way pneumatic steam control valve

1 1/2'' dn40 flanged 2 way pneumatic steam control valve

Basic Info

Model No.: Q641F/Q645/Q644F-16P-DN50mm

Product Description

1 1/2'' dn40 flanged 2 way pneumatic steam Control Valve




Product Description



>> Product features:


1)   Fire protection antistatic design

2)   Stem explosion proof device

3)   Pressure balance holes designed on the Ball Valve

4)   Double stem packing and counter pressure butterfly shrapnel device


>> Technical parameters:


Electric actuators

Type: 1.on/off 2.I/O:4-20mA

Explosion proof electric actuator

EX d Ⅱ BT4 EX d Ⅱ CT6   Regulation type,switch type


AC220V AC110V AC380V     DC12V DC24V DC110V

Pneumatic Actuator

Double acting,single acting

Pneumatic accessories

Limit switch,positioner,Solenoid Valve,filter relief-pressure valve,hand wheel-operated.

Nominal diameter


Nominal pressure


Applicable temperature

PTFE:-30~180°C PPL:-30~250°C



Body structure


Body material


Disc material


Seat lining


Applicable medium



>> Outline size drawing:


Size drawing and related data please don't hesitate to email me. thanks;



>> Pneumatic working principle:



Double acting working principle:

  1. Compressed air access into A holes, then the piston separates;
  2. So that the drive shaft anticlockwise, valve open;
  3. Air remove from B hole;

 1.    Compressed air access into B holes,  

        then the piston will be closer;

2.     So that the drive shaft clockwise, valve close;

3.     Air remove from A hole;











Packaging & Shipping

Packing and delivery terms:

1.  Packing:

1)  usually packed by the cartoons or plywood cases which are suitable for the exporting standard.

2)  also could be packed according to the customized requirements.




Product Categories : Other Valves

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