For one pipe systems
Radiator connection with cone seal. Compression adapter 1 6284 04 is mounted, pipe connections have to be ordered separately. Threaded pipe connection G 3/4 with cone seal or M22 x 1.5 . Circulation brake included.
1717401 M22 x 1.5 not stocked in the UK
|1717301||Herz-2000 One pipe Bypass Valve||G ¾ connections required||
|1717401||Herz-2000 One pipe Bypass Valve||M22 connections required||