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Model: PTR15/850
AVG HTCV-15F-15C-250-LF Solar Rated Non Return One Way Check Valve is spring loaded and designed to prevent the high-temperature backflow from the roof collectors present in solar hot water systems
Drinkable Water Standard)
Thread Size: 3/4" BSP (20mm) Male MI thread and 1/2" (15mm) compression fitting with copper olive
AVG PRG pressure gauge
AVG Retic Dual Check Ball Valve 20mm Female to 25mm Loose Nut Isolation Stop Model: PTR15/850Overview Australian Valve Group (AVG) Retic Dual Check Ball Valve with 20mm (3 4") Female to 25mm (1") Loose Nut. Water is directional from 20mm female to 25mm loose nut end. Loose nut end features an anti vandal hidden blocking plate to prevent unwanted water dumping. Blocking plate can only be removed with tool. Australian Watermark approved. (Check out my store for other check valve options) Technical Details Manufacturer: Australian Valve Group