|Heating - Size||DN20|
|Heating - Powered||No|
|Heating - Backflow Prevention||No|
Isolates Expansion Vessel enabling draining and air recharging.
Downloads & Resources
Every Expansion Vessel shall be fitted with an Expansion Vessel Isolator to enable draining and air recharging - model BVEV - as distributed by Arrow Valves Ltd – Tel 01442 823123 www.arrowvalves.co.uk. The valve shall have a lock shield cap and be capable of being wire locked. The assembly shall include a small bore plastic drain tap. The valve shall be a vented spherical type with a brass body and union connection to the vessel. Amend as required  BVEVL (for Large bore brass drain tap)  large bore brass drain tap