Product Video

Standard Check Valves

Engineered for reliability, these check valves provide precise, one-way flow control to protect sensitive equipment and ensure system integrity. By preventing backflow with a dependable seal, these valves are an essential component for any fluid or gas handling system where unidirectional flow is required. The check valves are offered in multiple housing and diaphragm materials to meet specific chemical compatibility and application needs. See the material spec sheet for more detailed information on each housing material.

Polypropylene, nylon, polycarbonate, gamma stable polycarbonate, or Kynar® PVDF housing
Viton® FKM, neoprene, or silicone diaphragm
Pressure rating: 0.5 psi forward flow (crack); 1.9 psi secure back-pressure seal

Item #	Description	Catalog Pg.	Price
Item 96177	1/8" Hose Barb x 1/8" Hose Barb Natural Polycarbonate Standard Check Valve with Silicone Diaphragm 0.98/Each In Stock Save 5% when you buy 30+ Save 10% when you buy 60+ Save 15% when you buy 180+	P-300	0.98/Each In Stock
Item 96182	3/16" Hose Barb x 3/16" Hose Barb Natural Polycarbonate Standard Check Valve with Silicone Diaphragm 0.98/Each In Stock Save 5% when you buy 30+ Save 10% when you buy 60+ Save 15% when you buy 180+	P-300	0.98/Each In Stock
Item 96186	1/4" Hose Barb x 1/4" Hose Barb Natural Polycarbonate Standard Check Valve with Silicone Diaphragm 0.83/Each Out of Stock (On Order) Save 5% when you buy 30+ Save 10% when you buy 60+ Save 15% when you buy 180+	P-300	0.83/Each Out of Stock (On Order)
Item 96191	3/8" Hose Barb x 3/8" Hose Barb Natural Polycarbonate Standard Check Valve with Silicone Diaphragm 1.06/Each Out of Stock (On Order) Save 5% when you buy 30+ Save 10% when you buy 60+ Save 15% when you buy 180+	P-300	1.06/Each Out of Stock (On Order)
Item 96176	1/8" Hose Barb x 1/8" Hose Barb Natural Nylon Standard Check Valve with Silicone Diaphragm 0.85/Each In Stock Save 5% when you buy 30+ Save 10% when you buy 60+ Save 15% when you buy 180+	P-300	0.85/Each In Stock
Item 96181	3/16" Hose Barb x 3/16" Hose Barb Natural Nylon Standard Check Valve with Silicone Diaphragm 0.85/Each In Stock Save 5% when you buy 30+ Save 10% when you buy 60+ Save 15% when you buy 180+	P-300	0.85/Each In Stock
Item 96190	3/8" Hose Barb x 3/8" Hose Barb Natural Nylon Standard Check Valve with Neoprene Diaphragm 0.93/Each In Stock Save 5% when you buy 30+ Save 10% when you buy 60+ Save 15% when you buy 180+	P-300	0.93/Each In Stock
Item 96173	1/8" Hose Barb x 1/8" Hose Barb Natural Nylon Standard Check Valve with Neoprene Diaphragm 0.88/Each In Stock Save 5% when you buy 30+ Save 10% when you buy 60+ Save 15% when you buy 180+	P-300	0.88/Each In Stock
Item 96178	3/16" Hose Barb x 3/16" Hose Barb Natural Nylon Standard Check Valve with Neoprene Diaphragm 0.88/Each In Stock Save 5% when you buy 30+ Save 10% when you buy 60+ Save 15% when you buy 180+	P-300	0.88/Each In Stock
Item 96183	1/4" Hose Barb x 1/4" Hose Barb Natural Nylon Standard Check Valve with Neoprene Diaphragm 0.91/Each In Stock Save 5% when you buy 30+ Save 10% when you buy 60+ Save 15% when you buy 180+	P-300	0.91/Each In Stock
Item 96175	1/8" Hose Barb x 1/8" Hose Barb Natural Polypropylene Standard Check Valve with Silicone Diaphragm 0.81/Each In Stock Save 5% when you buy 30+ Save 10% when you buy 60+ Save 15% when you buy 180+	P-300	0.81/Each In Stock
Item 96180	3/16" Hose Barb x 3/16" Hose Barb Natural Polypropylene Standard Check Valve with Silicone Diaphragm 0.99/Each In Stock Save 5% when you buy 30+ Save 10% when you buy 60+ Save 15% when you buy 180+	P-300	0.99/Each In Stock
Item 96185	1/4" Hose Barb x 1/4" Hose Barb Natural Polypropylene Standard Check Valve with Silicone Diaphragm 1.17/Each In Stock Save 5% when you buy 30+ Save 10% when you buy 60+ Save 15% when you buy 180+	P-300	1.17/Each In Stock
Item 96188	3/8" Hose Barb x 3/8" Hose Barb Natural Polypropylene Standard Check Valve with Silicone Diaphragm 1.19/Each In Stock Save 5% when you buy 30+ Save 10% when you buy 60+ Save 15% when you buy 180+	P-300	1.19/Each In Stock
Item 96189	3/8" Hose Barb x 3/8" Hose Barb Natural Nylon Standard Check Valve with Silicone Diaphragm 0.94/Each In Stock Save 5% when you buy 30+ Save 10% when you buy 60+ Save 15% when you buy 180+	P-300	0.94/Each In Stock
Item 64100	1/8" Hose Barb x 1/8" Hose Barb Natural Kynar® Standard Check Valve with Viton® Diaphragm 2.09/Each In Stock Save 5% when you buy 30+ Save 10% when you buy 60+ Save 15% when you buy 180+	P-300	2.09/Each In Stock
Item 64108	3/16" Hose Barb x 3/16" Hose Barb Natural Kynar® Standard Check Valve with Viton® Diaphragm 2.15/Each In Stock Save 5% when you buy 30+ Save 10% when you buy 60+ Save 15% when you buy 180+	P-300	2.15/Each In Stock
Item 64174	1/4" Hose Barb x 1/4" Hose Barb Natural Kynar® Standard Check Valve with Viton® Diaphragm 2.34/Each In Stock Save 5% when you buy 30+ Save 10% when you buy 60+ Save 15% when you buy 180+	P-300	2.34/Each In Stock
Item 64175	3/8" Hose Barb x 3/8" Hose Barb Natural Kynar® Standard Check Valve with Viton® Diaphragm 2.66/Each In Stock Save 5% when you buy 30+ Save 10% when you buy 60+ Save 15% when you buy 180+	P-300	2.66/Each In Stock
Item 64046	1/8" Hose Barb x 1/8" Hose Barb Natural Polypropylene Standard Check Valve with Viton® Diaphragm 1.2/Each In Stock Save 5% when you buy 30+ Save 10% when you buy 60+ Save 15% when you buy 180+	P-300	1.2/Each In Stock
Item 64047	3/16" Hose Barb x 3/16" Hose Barb Natural Polypropylene Standard Check Valve with Viton® Diaphragm 1.07/Each In Stock Save 5% when you buy 30+ Save 10% when you buy 60+ Save 15% when you buy 180+	P-300	1.07/Each In Stock
Item 64048	1/4" Hose Barb x 1/4" Hose Barb Natural Polypropylene Standard Check Valve with Viton® Diaphragm 1.09/Each Out of Stock (On Order) Save 5% when you buy 30+ Save 10% when you buy 60+ Save 15% when you buy 180+	P-300	1.09/Each Out of Stock (On Order)
Item 64049	3/8" Hose Barb x 3/8" Hose Barb Natural Polypropylene Standard Check Valve with Viton® Diaphragm 1.15/Each In Stock Save 5% when you buy 30+ Save 10% when you buy 60+ Save 15% when you buy 180+	P-300	1.15/Each In Stock
Item 96174	1/8" Hose Barb x 1/8" Hose Barb Gamma Stable Natural Polycarbonate Standard Check Valve with Silicone Diaphragm 0.98/Each In Stock Save 5% when you buy 30+ Save 10% when you buy 60+ Save 15% when you buy 180+	P-300	0.98/Each In Stock
Item 96179	3/16" Hose Barb x 3/16" Hose Barb Gamma Stable Natural Polycarbonate Standard Check Valve with Silicone Diaphragm 0.85/Each In Stock Save 5% when you buy 30+ Save 10% when you buy 60+ Save 15% when you buy 180+	P-300	0.85/Each In Stock
Item 96184	1/4" Hose Barb x 1/4" Hose Barb Gamma Stable Natural Polycarbonate Standard Check Valve with Silicone Diaphragm 0.82/Each In Stock Save 5% when you buy 30+ Save 10% when you buy 60+ Save 15% when you buy 180+	P-300	0.82/Each In Stock
Item 96187	3/8" Hose Barb x 3/8" Hose Barb Gamma Stable Natural Polycarbonate Standard Check Valve with Silicone Diaphragm 1.23/Each In Stock Save 5% when you buy 30+ Save 10% when you buy 60+ Save 15% when you buy 180+	P-300	1.23/Each In Stock

Note: Product testing for individual applications is recommended before use. U.S. Plastic Corp. cannot be held liable for individual application failures.