Tesla 3/4″ M x F” Expansion Vessel Service Valve EVSV

The Expansion Vessel Service Valve saves you time and money when servicing or replacing an expansion vessel. It allows you to isolate the expansion vessel without the need to drain down the whole system. It comes complete with a protected shut/open facility against inadvertent closing as well as an anti-tamper lever.

Features & Benefits

• Expansion Vessel Service Valve 3/4″ MBSP x 3/4″ FBSP
• 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