VFDH - 2-way control valves

Pressure balanced 2-way valve, DN15-150, kvs 0.4-310, DIN-standard. Intended for control of hot, cold or glycol-mixed water, ideal for district heating within the temperature range -5...+185°C. Intended for use with the SE5.../SE10.../SE18.../SE25... actuators.

Specifications

Software & documentation

Accessories

Articles

(12 st)

VFDH15-1,6

Nominal diameter

DN15

Kvs

1.6 m 3 /h

Stroke

20 mm

Actuator

SE5
VFDH15-2,7

Nominal diameter

DN15

Kvs

2.7 m 3 /h

Stroke

20 mm

Actuator

SE5
VFDH20-6,3

Nominal diameter

DN20

Kvs

6.3 m 3 /h

Stroke

20 mm

Actuator

SE5
VFDH25-10

Nominal diameter

DN25

Kvs

10 m 3 /h

Stroke

20 mm

Actuator

SE5
VFDH32-16

Nominal diameter

DN32

Kvs

16 m 3 /h

Stroke

20 mm

Actuator

SE5
VFDH40-27

Nominal diameter

DN40

Kvs

27 m 3 /h

Stroke

20 mm

Actuator

RVAN5
VFDH50-39

Nominal diameter

DN50

Kvs

39 m 3 /h

Stroke

20 mm

Actuator

SE5
VFDH65-63

Nominal diameter

DN65

Kvs

63 m 3 /h

Stroke

20 mm

Actuator

SE10
VFDH80-100

Nominal diameter

DN80

Kvs

100 m 3 /h

Stroke

20 mm

Actuator

SE10
VFDH100-160

Nominal diameter

DN100

Kvs

160 m 3 /h

Stroke

38 mm

Actuator

SE18
VFDH125-215

Nominal diameter

DN125

Kvs

215 m 3 /h

Stroke

40 mm

Actuator

SE25
VFDH150-310

Nominal diameter

DN150

Kvs

310 m 3 /h

Stroke

40 mm

Actuator

SE25

Specifications

Specifications for VFDH - 2-way control valves
Pressure rating	PN16
Connection	Flanges according to EN 1092-2
Flow characteristics	Equal percentage
Max. leakage	0.0 % of the kvs value (PTFE gasket, carbon-filled 25 %, no leakage) / 0.05 % of kvs for NTVS…-…M models with metal packing
Media	Hot water, cold water, glycol-mixed water
Media temperature	-5…+185°C
Rangeability	100:1
Max. diff. pressure	1600kPa
Body	Nodular cast iron (GJS) EN-JS1050
Seat	Stainless steel 1.4301 (DN15…DN100) or gunmetal CC491K (RG5) (DN125…DN150)
Plug	Stainless steel 1.4305 (DN15…DN100) or gunmetal CC491K (RG5) (DN125…DN150)
Stem	Stainless steel 1.4305
Lining	Stainless steel 1.4301
Seat packing, soft seal	PTFE with 25 % carbon
Seat packing, metal seal	Stainless steel 1.4057
Packing box	Dezincification resistant brass CW 602N, self-adjusting teflon
O-rings	Viton