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Thread Size: 1/2" BSP (15mm) Male MI thread and 1/2" (15mm) compression fitting with copper olive
Made in Italy
Expansion Rating: 132 kW
The AVG PTRE15-1000-LF is cross compatible with other popular makes such as Reliance HTE55-1 PTR valve with same fitments and functions
1/2" (15mm) Male Outlet
CALEFFI Solar Hot Water Anti Frost Protection Valve 15mm 1/2" Female Thread Extension Fitting:No Extension Thread Size: 1/2" BSP (15mm)Overview CALEFFI 15mm (1 2inch) 603040 solar frost protection anti freeze valve for solar thermal systems to protect hot water storage. Prevents ice built up in domestic water circuits avoiding possible damage to water storages and pipes in hydraulic, solar and irrigation systems. Made in Italy. Australian Watermark approved. Technical Details Manufacturer: CALEFFI, Made in Italy Model: 603040 Specifications: Opening Temperature: 3C Closing