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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 65 mm
Kvs value 63
Media temp. 2 ... 170 oC
Nominal pressure PN6
Close off pressure with 600N motor 160 kPa
Close off pressure with 1800N motor 600 kPa

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

Stroke 20 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