Isolate without having to drain down the whole system
No need to add inhibitor to the system
Allows the vessel to be isolated and drained for essential periodic servicing and re-charging
Shut off and drain, for membrane expansion vessels in sealed heating and cooling systems
Protected shut/open facility against inadvertent closing
Anti-tamper lever
Drain contents according to EN 12828
Can be used in conjunction with a sealed system installation kit
Supplied with washer and locking wire
Swivel nut for ease of installation
Includes swivel drain off
