You can find the right flow direction engraved on the check valve.

Please refer to our broad assortment of fittings to adapt to a variety of threads.

Product no	Product description	DN	Working pressure [bar]	Construction form	Thread + standard	Thread [GA]	Connection type 1	Connection type 2	Thread [G1]	Thread [G2]	Stock
RV-VU04BSP	RV-VU, BSP internal thread	6	500	check valves	Whitworth-Pipe thread (BSP), DIN EN ISO 228-1	1/4"	imperial	imperial	G 1/4"	G 1/4"	Available
RV-VU06BSP	RV-VU, BSP internal thread	10	300	check valves	Whitworth-Pipe thread (BSP), DIN EN ISO 228-1	3/8"	imperial	imperial	G 3/8"	G 3/8"	Available
RV-VU08BSP	RV-VU, BSP internal thread	12	350	check valves	Whitworth-Pipe thread (BSP), DIN EN ISO 228-1	1/2"	imperial	imperial	G 1/2"	G 1/2"	Available
RV-VU12BSP	RV-VU, BSP internal thread	20	220	check valves	Whitworth-Pipe thread (BSP), DIN EN ISO 228-1	3/4"	imperial	imperial	G 3/4"	G 3/4"	Available
RV-VU16BSP	RV-VU, BSP internal thread	25	250	check valves	Whitworth-Pipe thread (BSP), DIN EN ISO 228-1	1"	imperial	imperial	G 1"	G 1"	Available
RV-VU20BSP	RV-VU, BSP internal thread	32	220	check valves	Whitworth-Pipe thread (BSP), DIN EN ISO 228-1	1.1/4"	imperial	imperial	G 1.1/4"	G 1.1/4"	Currently not available
RV-VU24BSP	RV-VU, BSP internal thread	40	200	check valves	Whitworth-Pipe thread (BSP), DIN EN ISO 228-1	1.1/2"	imperial	imperial	G 1.1/2"	G 1.1/2"	Currently not available
RV-VU32BSP	RV-VU, BSP internal thread	50	130	check valves	Whitworth-Pipe thread (BSP), DIN EN ISO 228-1	2"	imperial	imperial	G 2"	G 2"	Available