Threaded 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 or silicone diaphragm
Pressure rating: 0.5 psi forward flow (crack); 1.9 psi secure back-pressure seal

Item #	Description	Catalog Pg.	Price
Item 96269	1/8"-27 MNPT x 1/8" Hose Barb Natural Nylon Threaded Check Valve with Silicone 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-278	0.91/Each In Stock
Item 96276	1/8"-27 MNPT x 3/16" Hose Barb Natural Nylon Threaded Check Valve with Silicone 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-278	0.91/Each In Stock
Item 96262	1/8"-27 MNPT x 1/4" Hose Barb Natural Nylon Threaded Check Valve with Silicone Diaphragm 0.92/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-278	0.92/Each Out of Stock (On Order)
Item 96284	1/8"-27 MNPT x 3/8" Hose Barb Natural Nylon Threaded 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-278	0.94/Each In Stock
Item 96273	1/8"-27 MNPT x 1/8" Hose Barb Natural Nylon Threaded Check Valve with Viton™ Diaphragm 0.89/Each In Stock Save 5% when you buy 30+ Save 10% when you buy 60+ Save 15% when you buy 180+	P-278	0.89/Each In Stock
Item 96280	1/8"-27 MNPT x 3/16" Hose Barb Natural Nylon Threaded Check Valve with Viton™ Diaphragm 0.9/Each In Stock Save 5% when you buy 30+ Save 10% when you buy 60+ Save 15% when you buy 180+	P-278	0.9/Each In Stock
Item 96266	1/8"-27 MNPT x 1/4" Hose Barb Natural Nylon Threaded Check Valve with Viton™ Diaphragm 0.91/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-278	0.91/Each Out of Stock (On Order)
Item 96288	1/8"-27 MNPT x 3/8" Hose Barb Natural Nylon Threaded Check Valve with Viton™ 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-278	0.93/Each In Stock
Item 96270	1/8"-27 MNPT x 1/8" Hose Barb Gamma Stable Natural Polycarbonate Threaded Check Valve with Silicone Diaphragm 0.51/Each In Stock Save 5% when you buy 30+ Save 10% when you buy 60+ Save 15% when you buy 180+	P-278	0.51/Each In Stock
Item 96277	1/8"-27 MNPT x 3/16" Hose Barb Gamma Stable Natural Polycarbonate Threaded Check Valve with Silicone Diaphragm 0.41/Each In Stock Save 5% when you buy 30+ Save 10% when you buy 60+ Save 15% when you buy 180+	P-278	0.41/Each In Stock
Item 96263	1/8"-27 MNPT x 1/4" Hose Barb Gamma Stable Natural Polycarbonate Threaded Check Valve with Silicone Diaphragm 0.49/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-278	0.49/Each Out of Stock (On Order)
Item 96283	1/8"-27 MNPT x 3/8" Hose Barb Gamma Stable Natural Polycarbonate Threaded Check Valve with Silicone Diaphragm 0.73/Each In Stock Save 5% when you buy 30+ Save 10% when you buy 60+ Save 15% when you buy 180+	P-278	0.73/Each In Stock
Item 96271	1/8"-27 MNPT x 1/8" Hose Barb Natural Polypropylene Threaded 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-278	0.82/Each In Stock
Item 96278	1/8"-27 MNPT x 3/16" Hose Barb Natural Polypropylene Threaded Check Valve with Silicone Diaphragm 0.9/Each In Stock Save 5% when you buy 30+ Save 10% when you buy 60+ Save 15% when you buy 180+	P-278	0.9/Each In Stock
Item 96264	1/8"-27 MNPT x 1/4" Hose Barb Natural Polypropylene Threaded Check Valve with Silicone Diaphragm 1/Each In Stock Save 5% when you buy 30+ Save 10% when you buy 60+ Save 15% when you buy 180+	P-278	1/Each In Stock
Item 96286	1/8"-27 MNPT x 3/8" Hose Barb Natural Polypropylene Threaded Check Valve with Silicone Diaphragm 0.87/Each In Stock Save 5% when you buy 30+ Save 10% when you buy 60+ Save 15% when you buy 180+	P-278	0.87/Each In Stock
Item 96274	1/8"-27 MNPT x 1/8" Hose Barb Natural Polypropylene Threaded Check Valve with Viton™ 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-278	0.98/Each In Stock
Item 96281	1/8"-27 MNPT x 3/16" Hose Barb Natural Polypropylene Threaded Check Valve with Viton™ 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-278	0.99/Each In Stock
Item 96267	1/8"-27 MNPT x 1/4" Hose Barb Natural Polypropylene Threaded Check Valve with Viton™ 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-278	0.99/Each In Stock
Item 96289	1/8"-27 MNPT x 3/8" Hose Barb Natural Polypropylene Threaded Check Valve with Viton™ Diaphragm 1/Each In Stock Save 5% when you buy 30+ Save 10% when you buy 60+ Save 15% when you buy 180+	P-278	1/Each In Stock
Item 96272	1/8"-27 MNPT x 1/8" Hose Barb Natural Kynar® Threaded Check Valve with Viton™ Diaphragm 2.01/Each In Stock Save 5% when you buy 30+ Save 10% when you buy 60+ Save 15% when you buy 180+	P-278	2.01/Each In Stock
Item 96279	1/8"-27 MNPT x 3/16" Hose Barb Natural Kynar® Threaded Check Valve with Viton™ Diaphragm 2.04/Each In Stock Save 5% when you buy 30+ Save 10% when you buy 60+ Save 15% when you buy 180+	P-278	2.04/Each In Stock
Item 96265	1/8"-27 MNPT x 1/4" Hose Barb Natural Kynar® Threaded Check Valve with Viton™ Diaphragm 2.11/Each In Stock Save 5% when you buy 30+ Save 10% when you buy 60+ Save 15% when you buy 180+	P-278	2.11/Each In Stock
Item 96287	1/8"-27 MNPT x 3/8" Hose Barb Natural Kynar® Threaded Check Valve with Viton™ Diaphragm 2.25/Each In Stock Save 5% when you buy 30+ Save 10% when you buy 60+ Save 15% when you buy 180+	P-278	2.25/Each In Stock
Item 96275	1/8"-27 MNPT x 1/8" Hose Barb Natural Polycarbonate Threaded Check Valve with Viton™ Diaphragm 0.96/Each In Stock Save 5% when you buy 30+ Save 10% when you buy 60+ Save 15% when you buy 180+	P-278	0.96/Each In Stock
Item 96282	1/8"-27 MNPT x 3/16" Hose Barb Natural Polycarbonate Threaded Check Valve with Viton™ Diaphragm 0.97/Each In Stock Save 5% when you buy 30+ Save 10% when you buy 60+ Save 15% when you buy 180+	P-278	0.97/Each In Stock
Item 96268	1/8"-27 MNPT x 1/4" Hose Barb Natural Polycarbonate Threaded Check Valve with Viton™ 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-278	0.98/Each In Stock
Item 96290	1/8"-27 MNPT x 3/8" Hose Barb Natural Polycarbonate Threaded Check Valve with Viton™ Diaphragm 1/Each In Stock Save 5% when you buy 30+ Save 10% when you buy 60+ Save 15% when you buy 180+	P-278	1/Each In Stock