The Danfoss GBC 42S is a full-bore refrigeration ball valve with 1 5/8 in ODF solder connections. Its brass body and PTFE seats provide bubble-tight shut-off in HFC, HFO, and HCFC service, with an optional access port for pressure testing. Suitable for refrigeration circuit isolation, HVAC hydronic loops, process cooling, and plant valving in commercial and industrial systems.