Check Valves

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Duckbill Check Valve, Female Luer Lock Inlet, Male Luer Lock Outlet - 80065
80065

Duckbill Check Valve, Female Luer Lock Inlet, Male Luer Lock Outlet

Qosina offers an extensive line of Check Valves, available in a variety of styles that are in stock and ready for immediate delivery. Qosina part #80065 features a yellow female luer lock inlet and a clear male luer lock outlet. This in-line duckbill check valve has a low, 0.433 psi cracking pressure which determines when the component starts to open. Made of polycarbonate and silicone, this valve is ideal for applications where back pressure is a concern. Qosina offers a variety of flow rates, materials, cracking pressure and back pressure options. Check Valve sample kits are also available which are ideal for testing.
0.433 psi CP
PC, Silicone
Duckbill Check Valve; Yellow Inlet, Clear Outlet - 80091
80091

Duckbill Check Valve; Yellow Inlet, Clear Outlet

Qosina offers an extensive line of Check Valves, available in a variety of styles that are in stock and ready for immediate delivery. Qosina part # 80091 features a yellow, 0.105 inch ID inlet and clear, 0.105 inch ID outlet. This in-line valve has a low, 0.433 psi cracking pressure which determines when the component starts to open. Made of polycarbonate and silicone, this duckbill valve style is ideal for applications where back pressure is a concern. Qosina offers a variety of flow rates, materials, cracking pressure and back pressure options. Check Valve sample kits are also available which are perfect for testing.
0.105 inch ID (2.67 mm); 0.433 psi CP
PC, Silicone
Duckbill Check Valve; Yellow Inlet, Clear Outlet - 80089
80089

Duckbill Check Valve; Yellow Inlet, Clear Outlet

Qosina offers an extensive line of Check Valves, available in a variety of styles that are in stock and ready for immediate delivery. Qosina part #80089 features a yellow inlet and clear outlet that has a 0.078 inch OD tubing port on each end. This in-line valve has a low, 0.433 psi cracking pressure which determines when the component starts to open. Made of polycarbonate and silicone, this duckbill valve style is ideal for applications where back pressure is a concern. Qosina offers a variety of flow rates, materials, cracking pressure and back pressure options. Check Valve sample kits are also available which are perfectly for testing.
0.078 inch ID (1.98 mm); 0.433 psi CP
PC, Silicone

Medical Check Valves

Qosina offers an extensive line of medical check valves, available in an assortment of designs, in stock and ready for immediate delivery. Complete your project by choosing among our one-way duckbills, high-flow and in-line, luer-activated and dual check valves.

High-flow valves feature low flow resistance, low opening pressure and a positive seal against backflow. Designed for flushing and irrigating applications, high-flow check valves afford quick flow response for more control.

DEHP-free, acrylic in-line check valves are designed to prevent backflow and have latex-free silicone diaphragms that permit flow in one direction, thereby preventing retrograde flow (back pressure tested to their specific psi ratings). In-line check valves feature versatility in design and low cracking pressures (i.e., the pressure at which the valve will start to open). Our assortment encompasses a range of cracking pressure ratings. If back pressure is a concern, choose from our variety of duckbill check valves to help avoid backflow contamination.

Luer-activated check valves are equipped with a needle-free design featuring a closed silicone plug that blocks flow until mechanically opened with a male luer connector. Female luer lock-equipped needleless valves mate tightly with all standard luer syringes and connectors. Besides offering a high flow rate, they allow bidirectional flow for precision-controlled aspiration or injection of fluids.

Our wide selection of nearly 70 types of luer-activated valves and accessories reflects the expanding range of protocol systems utilizing this technology. With the tremendous impact of needleless systems on the safety of both patients and health professionals, they are regarded as an engineered control for prevention of infection from contaminated sharps.

Dual check valves enable injection and aspiration from separate ports of a single connector. Depending on their design, they are ideal for either the mixing of two substances, or for the mixing and continuous filling of two substances

Sourcing from a range of check valve manufacturers allows Qosina to offer numerous configuration, flow rate, material, cracking pressure and back pressure options to fit a wide range of applications. Single-use medical device check valve sample kits are also available for purchase and are ideal for testing our components with your design prior to purchase.

For more information, including the potential for custom sourcing if you are unable to locate the component you need, please contact us.