VFTR320-4.0 VFTR - 2- and 3-way control valves

Valves, DN15-25, kvs 0.25-7.0, 5.5 mm stroke, intended for control of hot and cold water in climate, heating and ventilation systems. They can also control glycol-mixed water in for example liquid connected recovery systems. Intended to be used together with the SEZ4 actuators.

Specifications for VFTR320-4.0
Nominal diameter DN20
Kvs 4.0 m3/h
Connection G3/4"
Max. diff. pressure 100 kPa
Actuator SEZ4
Specifications for VFTR - 2- and 3-way control valves
Pressure rating PN16
Connection, actuator M30 x 1.5
Connection BSP externally threaded according to ISO 228/1
Flow characteristics Equal percentage
Max. leakage 0 % of the kvs value
Media temperature 1…110°C
Media Hot water, cold water, glycol-mixed water
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