Description
1/2″ Bsp Brass Spring Check Valve Non Return Valve.
1/2″ BSP female threads.
Suitable for general purpose not WaterMarked
Not suitable for hot water installations
Thread Type and Size Chart
BSP size (British Standard Pipe)
Actual Diameter Imperial Actual Diameter Metric
1/8” BSP 0.35 inch 9 mm
1/4” BSP 1/2 inch 12 mm
3/8” BSP 6/10 inch 15 mm
1/2” BSP 3/4 inch 19 mm
3/4″ BSP 1 inch 25 mm
1” BSP 1 & 1/4 inch 31 mm
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