VFMD325-10 VFMD - 2- and 3-way control valves

Externally threaded control valves, DN15-40, kvs 0.25-25, 5.5 mm stroke. Intended for use in heating and cooling systems together with the SEZ4… series of electromechanical actuators.
Specifications for VFMD325-10
Nominal diameter DN25
Kvs 10 m3/h
Max. diff. pressure 200 kPa
Actuator SEZ4
Specifications for VFMD - 2- and 3-way control valves
Application Heating systems, cooling systems, fan-coil units, ventilation systems
Pressure rating PN16
Connection BSP externally threaded according to ISO 228/1
Flow characteristics Linear
Max. leakage 0.0 % of kvs
Media Hot water, cold water, glycol-mixed water
Media temperature 2…110°C
Rangeability 50:1
Stroke 5.5mm
Body Brass CW614N
Seat Brass CW614N
Plug Brass CW614N
Stem Stainless steel 1.4305
Seat packing EPDM
O-rings EPDM
Nut Malleable cast iron, galvanized
Nipple Dezincification resistant brass CW 602N (DN15-DN20), Malleable cast iron (DN25-DN40)
Fitting seal Novatec Premium 2, Nitrile bonded aramid fibre with graphite
Cover lid Dezincification resistant brass CW 602N