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Schneider Electric - MK-4601 - Pneu Vlv Act 3-6 1/2 Stoke For 1/2-1 1/4 Invensys - Pneu Vlv Act 3-6 1/2 Stoke For 1/2-1 1/4in Vlv 11Sq In

11 square inch Actuator 1/2" stroke


Fail Safe Mode: Spring Return
Actuator Spring Range: 3 to 6 psig
Operating Temp Range: -20 to 220° F
Air Connections: 1/8" FNPT

Max. Working Pressure:




Customer Rating: Not Rated Yet
Quick Order Number: 299
Manufacturer: Schneider Electric
Part Number: MK-4601
Weight: 3.00 lbs
Stocked Item*: Yes
Quantity Available*: 0
Price: $168.34

* If an order is placed where the item is a "Non-Stocked Item" or the quantity ordered is more than the quantity available, all items in stock will be shipped and the remainder of the items will be shipped as soon as we get the "backordered" items in.


Product Specifications

 These valve actuators, with an 11 sq. in. (71 cm2) effective diaphragm area, are used with TAC VB-7xxx series valves for proportional pneumatic control of hot water or chilled water valves. The MK-46xx and MK4-46xx Series may also be mounted on discontinued 1/2" through 1-1/4" TAC VB-111, VB-131, VB-314, and VB-9xxx series valves.


  • Rugged die cast aluminum housing
  • Replaceable beaded molded neoprene diaphragm
  • Built-in spring to retract output shaft on loss of air pressure
  • Adjustable start point
  • Multiple spring ranges for various applications
  • 1/2" nominal stroke


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