Bracket For Expansion Tanks
Link your heating system to the ½” FNPT connection A . Connect directly a heating expansion tank (HGT-15, HGT-30, HGT-60M and HGT-60), with the Service valve (HGSV12) on the ½” FNPT connection B. Then, on connections C (1⁄8” FNPT), connect an automatic air vent (R8818) or a pressure gage (#GAGE0-100BOTTOM or #GAGE0-30BOTTOM). On connection D (½” MNPT) you can either connect your GMP or simply the cold water supply.
