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For heating and air conditioning in closed circuit systems; hot/cold water quality VDI2035, greenhouses.

Product Description

These three-port mixing valves are used for modulating control of hot/chilled water or steam in heating, ventilation, and air conditioning systems. The valves can be operated by linear actuators series ML64... and ML74...

Technical Properties

Valve type 3-way linear valve
Medium type water or water-glycol mixture according to VDI 2035
DN size 125 mm
Kvs value 220
Media temp. 2 ... 120 oC
Nominal pressure PN6
Close off pressure with 1800N motor 120 kPa

Stem made of stainless steel, valve body made of cast iron (GG25), flanged per ISO 7005-2

Stroke 38 mm
Port connection flanges ISO7005
Flow char. A-AB

Equal percentage

Flow char. B-AB



Stem up to close port A-AB

  • 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 actuators
  • Constant total flow throughout full plug travel