Gravity Circulation Checks l DISCO Non-Return Valves l
DISCO Dual-Plate Check Valves l DISCO Swing-Check Valves
GESTRA Gravity Circulation Checks SBO
Gravity circulation checks are used to prevent gravity circulation downstream of circulating pumps in heating and hot-water installations.
All SBO types are fitted with manual opening device. The SBO 11 and SBO 21 valves can replace the isolating valve in the supply line. These valves remain in the line should the pump be dismantled. The plant need no longer be completely emptied if the pump has to be replaced.