H420B - 2-Way Globe Valve, DN 20

H420B - 2-Way Globe Valve, DN 20

H432B - 2-Way Globe Valve, DN 32

H432B - 2-Way Globe Valve, DN 32

H425B - 2-Way Globe Valve, DN 25

£136.80 £114.00
On request

H425B - 2-way globe valve, DN 25

•    Valve disk stainless steel
•    Stem/bypass-seat stainless steel
•    Seal EPDM O-ring
•    Temperature of medium max. 120°C
•    Characteristic A-AB equal percentage
•    Leakage rate A-AB max. 0.05% of kvs


  • Mode of operation The actuator is controlled with a standard modulating signal of DC 0 ... 10 V and travels to the position defined by the control signal. The measuring voltage U serves for the electrical display of the damper position 0 ... 100% and as slave control signal for other actuators.

  • Flow characteristic An equal-percentage flow characteristic is produced by profiling the valve cone.

  • Manual override Manual override with pushbutton possible (the gear is disengaged for as long as the button is pressed or remains locked).
More Information
Manuals & Datasheets
Technical Information

•    Functional data Flow media Cold and warm water, water with max. 50% volume of glycol
•    Temperature of medium (–10°C) +5°C ... +120°C (–10°C on request)
•    Rated pressure ps 1600 kPa (PN16)
•    Flow characteristic Control path A – AB: equal percentage (to VDI/VDE 2173) n(gl) = 3, optimized in the opening range
•    Rangeability Sv See «Type overview»
•    Leakage rate Control path A – AB: leakage class III (DIN EN 1349 and DIN EN 60534-4)
•    Pipe connection External thread to ISO 228
•    Stroke See «Type overview»
•    Valve closing point Up (A)
•    Installation position Upright to horizontal (in relation to the stem)
•    Maintenance Maintenance-free
•    Materials Fitting Red casting brass Rg5
•    Valve cone Stainless steel
•    Valve stem Stainless steel
•    Valve seat Red casting brass Rg5 / Niro (bypass)
•    Stem gland seal EPDM O-Ring
•    Dimensions and weights See «Dimensions and weights», page 3
•    Motorizing See the Complete overview «The complete range of water solutions»