Check Valve

Ensure one-way directional flow in vacuum lines with these polyethylene plastic check valves. Operate positively; instantly blocks flow if direction changes Built-in arrows indicate direction of free flow Neoprene disk, no metal Maximum operating pressure is 20psi

An all-glass check valve with ground seat for liquid seal. Available in style A for vertical use, and style B for right angle connection. Connections are 8mm O.D.

Check Valve, All Glass, Synthware, Hose Connections OD: 8mm, with ground seat for liquid seal.

All-glass check valve with ground seat and precision ground solid ball. Suitable with mercury in the vertical position, more sensitive to other fluids in the horizontal position. Connections are 8mm O.D.

In-Line Check Valve for Pumped Rinse Kit, 1/4-28 threaded inlet & outlet

Tubing barbed check valves are constructed of chemical-resistant Kynar body and Viton valve for an inert high purity smooth and clear flow path. Use with acids, bases, water, chemical processing, and alcohols. Use for liquids, gases, pressure, and vacuum applications. Operating…

…get on with more important things without worrying about exploding glass. The Snorkel Stopper features a one-way check valve that automatically relieves gas pressure. The valve releases pressure of more than 1 pound and prevents direct air contact with the vessel. The shape of the stopper…

…of Check Valves available in a variety of styles that are in stock and ready for immediate delivery. Qosina part # 91029 is a high flow valve that provides low flow resistance, a low 0.075 psi opening pressure, and a positive seal against backflow. Made of acrylic and silicone, this valve is barbed,…

For industrial use only.

Check valve and filter allow pressure equalization for safe solvent delivery Filter prevents particulate contamination Use without any fittings or use male Luer fittings to connect various tubing sizes Anti-twist design The T-series solvent bottle caps help contain vapors, protect…