Lee Co. (The) Datasheets for Check Valves
Check valves are self-activating safety valves that permit gases and liquids to flow in only one direction, preventing process flow from reversing. They are classified as one-way directional valves.
Check Valves: Learn more
| Product Name | Notes |
|---|---|
| The Lee Company’s line of Power Generation Check Valves are designed for use in purge air, water injection, and liquid fuel applications. The valves are field serviceable using a rebuild... | |
| This cartridge-style check valve is only 0.343 inches in diameter and 0.78 inches in length. Its side-exit design is useful in hydraulic manifolds where the flow needs to change direction. | |
| This cartridge-style check valve is only 0.483 inches in diameter and .76 inches in length. Its unique design maximizes the free flow in a very short, compact package.. The valve... | |
| This cartridge-style check valve is only 0.736 inches in diameter and 1 inch in length. Its unique design maximizes the free flow in a very short, compact package. The valve... | |
| This cartridge-style check valve is only 0.989 inches in diameter and 1.1 inches in length. Its unique design maximizes the free flow in a very short, compact package. It is... | |
| This cartridge-style non-return valve is made with an elastomeric valve seat for improved checked direction leakage performance. The soft seat makes this check valve ideal for pneumatic applications where zero... | |
| This cartridge-style restrictor check valve is 5.5 mm in diameter and is designed specifically for installation into soft tubing, plastic housings, and fittings. Functionally, a restrictor check valve is an... | |
| This cartridge-style, non-return valve is designed specifically for installation into many common medical fittings and plastic housings. The valve can be installed in either direction, providing forward or reverse flow... | |
| This cartridge-style, non-return valve is designed specifically for installation into soft tubing, plastic housings, and fittings. The valve can be installed in either direction, providing forward or reverse flow capabilities. | |
| This cartridge-style, non-return valve is made with an elastomeric seat for improved checked direction leakage performance. The valve features 316L stainless steel construction with a ceramic ball which provides compatibility... | |
| This cartridge-style, non-return valve is made with medical grade 316L stainless steel and a ceramic ball for improved compatibility with aggressive fluids and gases. This valve is designed specifically for... | |
| This cartridge-style, non-return valve is made with medical grade 316L stainless steel and a ceramic ball for improved compatibility with hydrogen and other aggressive fluids. This valve is designed specifically... | |
| This cartridge-style, non-return valve offers higher flow capacity over our standard 558 Series valves. This valve is specifically designed for installation into plastic housings and fittings. The valve can be... | |
| This cartridge-style, non-return valve offers higher flow capacity over our standard 855 Series valves. This valve is specifically designed for installation into plastic housings and fittings. The valve can be... | |
| This cartridge-style, non-return valve offers optimized flow capacity for its size. The unique barbed design provides easy “press-in” installation into plastic housings and fittings which ensures retention and prevents any... | |
| This cartridge-style, non-return valve offers optimized flow capacity for its size. The unique barbed design provides easy “press-in” installation into plastic housings and fittings, which ensures retention and prevents any... | |
| This check valve has been qualified at cryogenic temperatures in a bath of liquid nitrogen. The valve showed leakage results under 10 sccm of helium at -320° F. Built into... | |
| This high flow check valve is only 0.500 inches in diameter and 1.1 inches in length. Its unique design maximizes the free flow in a very short, compact package.. The... | |
| This high pressure, pilot-operated check valve is only 0.25 inches in diameter and 1.5 inches in length. The valve acts like a normal check valve until pressure is applied to... | |
| This high pressure, pilot-operated check valve is only 0.375 inches in diameter and 2 inches in length. The valve acts like a normal check valve until pressure is applied to... | |
| This high pressure, pilot-operated check valve is only 0.5 inches in diameter and 2.76 inches in length. The valve acts like a normal check valve until pressure is applied to... | |
| This miniature check valve is only 0.156 inches in diameter and 0.49 inches in length. Its unique design offers both high flow and high pressure capability in a compact package. | |
| This miniature check valve is only 0.187 inches in diameter and 0.62 inches in length. This valve features a poppet-style design to maximize the free flow in one direction and... | |
| This miniature check valve is only 0.187 inches in diameter and 0.62 inches in length. This valve features an economical ball-style design allowing free flow in one direction and preventing... | |
| This miniature check valve is only 0.187 inches in diameter and 0.66 inches in length. This valve features an economical ball-style design allowing free flow in one direction and preventing... | |
| This miniature check valve is only 0.187 inches in diameter and 0.66 inches in length. This valve’s unique design offers both high flow and high pressure capability in a compact... | |
| This miniature check valve is only 0.25 inches in diameter and 0.74 inches in length. This valve’s unique design offers both high flow and high pressure capability in a compact... | |
| This miniature check valve is only 0.25 inches in diameter and 0.78 inches in length. This valve features a poppet-style design to maximize the free flow in one direction and... | |
| This miniature check valve is only 0.25 inches in diameter and 0.78 inches in length. This valve features an economical ball-style design allowing free flow in one direction and preventing... | |
| This miniature check valve is only 0.375 inches in diameter and 1.2 inches in length. This valve features a poppet-style design to maximize the free flow in one direction and... | |
| This miniature check valve is only 0.5 inches in diameter and 1.5 inches in length. This valve features a poppet-style design to maximize the free flow in one direction and... | |
| This miniature restrictor check valve is only 0.187 inches in diameter and 0.77 inches in length. This valve provides restricted flow in one direction and prevents flow in the other... | |
| This miniature, high pressure check valve is only 0.125 inches in diameter and 0.52 inches in length. Its robust design prevents backflow in extreme high pressure systems up to 15,000... | |
| This miniature, high pressure check valve is only 0.125 inches in diameter and 0.52 inches in length. Its robust design prevents backflow in high pressure systems up to 8000 psi. | |
| This miniature, high pressure check valve is only 0.187 inches in diameter and 0.82 inches in length. Its robust design prevents backflow in extreme high pressure systems up to 15,000... | |
| This miniature, high pressure check valve is only 0.187 inches in diameter and 0.82 inches in length. Its robust design prevents backflow in high pressure systems up to 8000 psi. | |
| This miniature, high pressure check valve is only 0.25 inches in diameter and 1 inch in length. Its robust design prevents backflow in extreme high pressure systems up to 15,000... | |
| This miniature, high pressure check valve is only 0.25 inches in diameter and 1 inch in length. Its robust design prevents backflow in high pressure systems up to 8000 psi. | |
| This miniature, high pressure check valve is only 0.375 inches in diameter and 1.3 inches in length. Its robust design prevents backflow in extreme high pressure systems up to 15,000... | |
| This miniature, high pressure check valve is only 0.375 inches in diameter and 1.37 inches in length. Its robust design prevents backflow in high pressure systems up to 8000 psi. | |
| This miniature, high pressure check valve is only 0.5 inches in diameter and 1.7 inches in length. Its robust design prevents backflow in extreme high pressure systems up to 15,000... | |
| This miniature, high pressure check valve is only 0.5 inches in diameter and 1.8 inches in length. Its robust design prevents backflow in high pressure systems up to 8000 psi. | |
| This miniature, pilot-operated check valve is only 0.25 inches in diameter and 1.25 inches in length. The valve acts like a normal check valve until pressure is applied to the... | |
| This miniature, zero-leak check valve is only 0.187 inches in diameter and 0.63 inches in length. This check valve utilizes an elastomeric seat material to provide zero leakage in the... | |
| This miniature, zero-leak check valve is only 0.25 inches in diameter and 0.78 inches in length. This check valve utilizes an elastomeric seat material to provide zero leakage in the... | |
| This miniature, zero-leak check valve is only 0.375 inches in diameter and 1.21 inches in length. This check valve utilizes an elastomeric seat material to provide zero leakage in the... | |
| This miniature, zero-leak check valve is only 0.5 inches in diameter and 1.42 inches in length. This check valve utilizes an elastomeric seat material to provide zero leakage in the... | |
| This product is a Luer Tee fitting with a 2.5 mm pressure relief valve in the branch to provide protection from overpressurization, and a 2.5 mm check valve in the... | |
| This threadless, cartridge-style one-way valve is made with an elastomeric seat for improved checked direction leakage performance. The valve features 316L stainless steel construction with a ceramic ball which provides... | |
| This threadless, cartridge-style restrictor check valve is 5.5 mm in diameter and is designed for installation into metal manifolds. Functionally, a restrictor check valve is an orifice in series with... | |
| This threadless, cartridge-style, one-way valve is designed for installation into metal manifolds. The check valve features The Lee Company’s field-proven locking end that provides secure retention without the need for... | |
| This threadless, cartridge-style, one-way valve is designed for installation into metal manifolds. The valve features The Lee Company’s field-proven locking end which provides secure retention without the need for threads,... | |
| This threadless, cartridge-style, one-way valve is for use in high pressure hydraulic systems with operating pressures up to 400 Bar. This valve features The Lee Company’s field-proven locking end that... | |
| This threadless, cartridge-style, one-way valve is made with an elastomeric seat for improved checked direction leakage performance. The soft seat makes this check valve ideal for pneumatic applications where zero... | |
| This threadless, cartridge-style, one-way valve is made with an elastomeric valve seat for improved checked direction leakage performance. The soft seat makes this check valve ideal for pneumatic applications where... | |
| This threadless, cartridge-style, one-way valve is made with medical grade 316L stainless steel and a ceramic ball for improved compatibility with aggressive fluids. This valve features The Lee Company’s field-proven... | |
| This threadless, cartridge-style, one-way valve is made with medical grade 316L stainless steel and a ceramic ball for improved compatibility with hydrogen and other aggressive fluids. This valve features The... | |
| This threadless, cartridge-style, one-way valve offers higher flow capacity over our standard 558 Series valve. This valve features The Lee Company’s field-proven locking end that provides secure retention into metal... | |
| This threadless, cartridge-style, one-way valve offers higher flow capacity over our standard 855 Series valve. This valve features The Lee Company’s field-proven locking end that provides secure retention into metal... | |
| This threadless, cartridge-style, one-way valve offers side-exit flow. The inlet and outlet are not on the same axis, so flow follows a 90° angle. This valve features The Lee Company’s... | |
| This ultra-miniature check valve is only 0.093 inches in diameter and 0.33 inches in length. This valve’s compact size allows for packaging in extremely small spaces. It is ideal for... | |
| This valve combines the function of a reverse flow pressure relief valve in parallel with that of a check valve with free flow in the forward direction – all into... | |
| This valve combines the function of a reverse flow pressure relief valve in parallel with that of a check valve with free flow in the forward direction — all in... | |
| This zero-leak check valve is only 0.187 inches in diameter and 0.9 inches in length and is designed for the extreme temperatures and pressures found deep within oil wells and... | |
| This zero-leak check valve is only 0.25 inches in diameter and 1.2 inches in length and is designed for the extreme temperatures and pressures found deep within oil wells and... | |
| This zero-leak check valve is only 0.375 inches in diameter and 1.5 inches in length and is designed for the extreme temperatures and pressures found deep within oil wells and... | |
| This zero-leak check valve is only 0.5 inches in diameter and 2 inches in length and is designed for the extreme temperatures and pressures found deep within oil wells and... |