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Isolation Valves

Isolation Valves for Diagnostics

Isolating Aggressive Fluids in Diagnostic Equipment

Isolation valves are used when aggressive fluids come into play. Available in a diaphragm or pinch tube model, these valves are engineered so that the sensitive internal solenoid components are separated from the flow path. This dramatically extends the lifespan of your instrument without compromising performance and reliability. Lee isolation valves come in 2-way or 3-way designs and in multiple mounting styles, providing engineers with flexibility for integration into the smallest space possible. The low internal volume and fast switching response of these valves make them easy to flush between cycles for efficient fluid control.

Xover® LXR Series

Xover is a groundbreaking 3-way internal pinch-tube solenoid valve with zero dead volume that is designed to switch quickly and efficiently between fluid samples. Featuring a Y-shaped elastomer tube, this innovative valve combines the flow path of a pinch valve with the versatile, maintenance-free performance of a chemically inert isolation valve. With a carryover volume of only 3.7 µL and an extremely low internal volume of 11 µL, Xover provides unmatched reliability and exceptional flushing capability for fast, efficient switching performance.

LSP Series

LSP Series valves are chemically inert pinch-tube style solenoid valves featuring a flow capacity of 330 Lohms and zero dead volume. Available as a 2-way, normally closed model, the valves are engineered with a unique internal full bore tubed design path that yields high bi-directional flow performance while minimizing damage to any sensitive fluids flowing through the valve. This tubed design is integrated into the flow ports, thus eliminating the need for a secondary sealing gasket between the valve and a mounting surface.

LFY Series

LFY Series valves are 2-way and 3-way chemically inert pinch-tube style solenoid valves with zero dead volume. These valves offer a flow capacity of up to 1000 Lohms and feature a unique internal pinch block design to isolate the fluid path, providing precise fluid control.

LFN Series

LFN Series valves are compact, 7 mm chemically inert diaphragm style valves with zero dead volume. These 2-way, normally closed valves are rated for bi-directional flow and use a contoured internal flow path designed for complete flushing capability. Featuring an extremely low internal volume of 9 µL, a flow capacity of up to 2500 Lohms, and power consumption as low as 900 mW, these valves provide consistent, reliable switching performance in the smallest footprint possible.

LFV Series

LFV Series valves are 13 mm chemically inert diaphragm style valves with zero dead volume. Offering a flow capacity of up to 1000 Lohms, these 2-way, normally closed valves are rated for bi-directional flow and feature power consumption as low as 1.4 W. LFV Series valves provide high flow performance without compromising reliability.

LFR Series

LFR Series valves are 13 mm, 3-way chemically inert diaphragm-style valves. Featuring power consumption as low as 1.6 W and a flow capacity of up to 700 Lohms, these diaphragm-style valves have been optimized for high flow performance without compromising reliability.

Support & Resources

Support & Resources from a Team that Speaks Your Language

Partner with The Lee Company and get much more than just a supplier of top-quality fluid control products. Our reliable technical support team is available every step of the way to help you find solutions, maximize productivity, and drive efficiency across your operations. Check out these resources specific to diagnostics applications to learn more.