Heating Controls and Spares

Specialist suppliers of all t


Siemens VBG31.25 Three Port Valve


Description Of Part

3-port slipper valves PN 10 with externally threaded connections DN20...40‚ series 02 The mounting sets are not included. - With externally threaded connections to ISO 228-1 - For chilled or low-temperature hot water in closed circuits - With manual adjuster - With screwed fittings

Angular rotation 90 ° 

Leakage rate 0...0.1 % of kvs value 

Medium temperature 1...120 °C 

Valve characteristic Linear 

Permissible operating pressure 1000 kPa 

Material‚ valve body Cast iron EN-GJL-250 

Material‚ inside set Stainless steel/brass 

VBG31.. are supplied with malleable cast iron fittings