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Product Code: XVES050170
then the valve opens immediately to the maximum flow position
triggering the valve to open
This option is particularly useful if the tap is being used to rinse items
Altecnic / Caleffi 253 Solar Series 253043 Pressure Safety Relief Valve 1/2" x 3/4" F x F 3 Bar 10 barg Product Code: XVES050170Description This is a stock item. Order by 5pm Monday to Thursday and 4. 30pm Friday for same day despatch. The Altecnic series 253 safety relief valves are designed to regulate pressure within the primary circuits of solar heating systems. Each valve is carefully selected to match the required set pressure. As system pressure builds and reaches the discharge threshold, the valve opens automatically, releasing excess pressure to the atmosphere. This
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