Nibco® Chemtrol® Black Polypropylene Socket True Union Ball Check Valves

These ball check valves stop the media flow in one direction while allowing flow in the opposite direction, with minimum turbulence and chatter, while maintaining pump prime. The valve's injection-molded polypropylene construction, with either an EPDM or FKM O-ring, is ideal for hot corrosive liquids, chemical processing, industrial plating, laboratory and industrial waste drainage, and waste treatment systems. The original Chemtrol® True Union design allows the valve and operational components to be conveniently lifted from the piping system for repair or replacement. The black polypropylene material demonstrates excellent tensile strength, UV stability, and versatile chemical resistance properties, making it the material of choice for harsh industrial, outdoor, and underground applications.

Black polypropylene valve body
FKM or EPDM O-ring
Socket end connections
Pressure rating: 150 psi at 73°F water non-shock
Maximum service temperature: 180°F
Do not use or test with compressed air or other gases
ASTM D4101 material
Non-cancellable/Non-returnable

Stock	Description	Catalog Pg.	Price
Item 18396	1/2" Socket Black Polypropylene Nibco® Chemtrol® True Union Ball Check Valve with FKM O-rings 217.67/Each Drop Ship Save 5% when you buy 2+ Save 10% when you buy 4+ Save 15% when you buy 12+	P-476	217.67/Each Drop Ship
Item 18397	3/4" Socket Black Polypropylene Nibco® Chemtrol® True Union Ball Check Valve with FKM O-rings 292.3/Each Drop Ship Save 5% when you buy 2+ Save 10% when you buy 4+ Save 15% when you buy 12+	P-476	292.3/Each Drop Ship
Item 18398	1" Socket Black Polypropylene Nibco® Chemtrol® True Union Ball Check Valve with FKM O-rings 380.62/Each Drop Ship Save 5% when you buy 2+ Save 10% when you buy 4+ Save 15% when you buy 12+	P-476	380.62/Each Drop Ship
Item 18399	1-1/2" Socket Black Polypropylene Nibco® Chemtrol® True Union Ball Check Valve with FKM O-rings 558.45/Each Drop Ship Save 5% when you buy 2+ Save 10% when you buy 4+ Save 15% when you buy 12+	P-476	558.45/Each Drop Ship
Item 18400	2" Socket Black Polypropylene Nibco® Chemtrol® True Union Ball Check Valve with FKM O-rings 961.23/Each Drop Ship Save 5% when you buy 2+ Save 10% when you buy 4+ Save 15% when you buy 12+	P-476	961.23/Each Drop Ship
Item 18401	1/2" Socket Black Polypropylene Nibco® Chemtrol® True Union Ball Check Valve with EPDM O-rings 217.67/Each Drop Ship Save 5% when you buy 2+ Save 10% when you buy 4+ Save 15% when you buy 12+	P-476	217.67/Each Drop Ship
Item 18403	3/4" Socket Black Polypropylene Nibco® Chemtrol® True Union Ball Check Valve with EPDM O-rings 292.3/Each Drop Ship Save 5% when you buy 2+ Save 10% when you buy 4+ Save 15% when you buy 12+	P-476	292.3/Each Drop Ship
Item 18404	1" Socket Black Polypropylene Nibco® Chemtrol® True Union Ball Check Valve with EPDM O-rings 380.62/Each Drop Ship Save 5% when you buy 2+ Save 10% when you buy 4+ Save 15% when you buy 12+	P-476	380.62/Each Drop Ship
Item 18405	1-1/2" Socket Black Polypropylene Nibco® Chemtrol® True Union Ball Check Valve with EPDM O-rings 558.45/Each Drop Ship Save 5% when you buy 2+ Save 10% when you buy 4+ Save 15% when you buy 12+	P-476	558.45/Each Drop Ship
Item 18406	2" Socket Black Polypropylene Nibco® Chemtrol® True Union Ball Check Valve with EPDM O-rings 961.23/Each Drop Ship Save 5% when you buy 2+ Save 10% when you buy 4+ Save 15% when you buy 12+	P-476	961.23/Each Drop Ship

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