For two 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 M 22 x 1.5.
1717601 M22 x 1.5 not stocked in the UK
|1717501||Herz-2000 Two pipe Bypass Valve||G ¾ connections required||
|1717601||Herz-2000 Two pipe Bypass Valve||M22 connections required||