VFG250-39 VFG2 - 2- way control valves

Valves, DN15-50, kvs 0.6-39, 20 mm stroke, designed for control of hot, cold or glycol-mixed water in heating and ventilation systems. They are pressure balanced (from DN20-50, not DN15) and can therefore handle high differential pressure with low force. The valves are intended to be used together with Industrietchnik’s SE5... actuators. They should not be used in domestic water systems.

Specifications for VFG250-39
Nominal diameter DN50
Connection G2"
Kvs 39 m3/h
Actuator SE5
Specifications for VFG2 - 2- way control valves
Pressure rating PN16
Connection BSP internally threaded according to ISO 228/1
Flow characteristics Equal percentage
Max. leakage 0 % of the Kvs value (PTFE gasket, carbon-filled 25 %, no leakage)
Max. diff. pressure 1600kPa
Media Hot water, cold water, glycol-mixed water
Media temperature -5…+140°C
Rangeability 100:1
Stroke 20mm

Brass CW614N


Brass CW614N

Plug Stainless steel 1.4301
Stem Stainless steel 1.4305
Seat packing PTFE with 25 % carbon
O-rings EPDM

Spare parts kit, O-ring kit for BTV valves from DN15 to DN25 (until 2018-12)


Spare parts kit, packing box, for BTV valves from DN32 to DN50 (until 2018-12) and FRS valves.