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These single seated valves are used for modulating control of hot / chilled water or steam in heating, ventilating and air conditioning systems. The valves can be operated by linear actuators M6421B and M7421B or by pneumatic actuators MP953.


  • Cast iron body with flanged end connections
  • Low seat leakage rate
  • Metal to metal seating for long life span
  • Self adjusting packing
  • Accurate positioning to ensure state-of-the-art temperature control
  • Easy mounting of direct coupled electric and pneumatic actuators
  • Constant total flow throughout full plug travel
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