Calorifiers, Heat Exchangers, Water Heating Solutions by GMS Thermal Products

Riverside Works • Egmont Street • Mossley • OL5 9NE
Tel. 01457 835700 • Fax. 01457 832700

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Ancillary items and Options

Pressure Relief Valve: Needed for all unvented calorifiers and where working pressure exceeds 25 m w.g.
Anti-Vacuum Valve: Anti-vacuum valves are needed for all copper-lined steel calorifiers. They may also be fitted to copper calorifiers where there is a possibility of partial vacuum.
Automatic Air Vent: Normally only needed on unvented systems
Expansion Vessel: An expansion vessel should be connected to the cold feed pipe of unvented calorifiers.