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Product Description

For closed circuit heating systems, hot water quality VDI2035.

Technical Properties

Valve type 3-way linear valve
Medium type water or water-glycol mixture according to VDI 2035
DN size 40 mm
Kvs value 25
Flow char. linear
Nominal pressure PN25/40

Stem made of stainless steel, valve body made of cast steel (GS-C25), flanged per ISO 7005-2

Stroke 20 mm
Port connection flanges ISO7005
Temperature range 2 ... 220 oC

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