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Solar Thermal > Expansion Vessels & Tanks
PHC Parts supply a comprehensive range of expansion vessels for solar applications, from leading manufacturers Zilmet and Reliance Water Controls.
Designed with a special solar membrane (diaphragm) to separate the solar fluid (ethylene or propylene glycol) from the gas, solar vessels are fully welded, and manufactured to meet the requirements of the PED97/23/EC directive, DIN4757-2 and BS EN12977.
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