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Expansion vessels are installed on unvented systems to protect from excessive pressure when the water heats up
EPDM Covered Resilient Seat
180 Piece Copper Endfeed Fitting Pack Comprising Of:
Viton O-rings
uPVC Double Union Threaded Air Release Valve - EPDM Size:2" Expansion vessels are installed onuPVC Threaded Air Release EPDM Seal Valves are manufactured from the material unplasticised polyvinyl chloride; subject to the system pressure, has a working temperature of +5C to +60C. Our Air Release Valves allow for air to be released from a tank which the valve is connected to. Double Union Ball Valves can be easily disconnected for maintenance through use of its double union ends.
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