The Lee Company offers pumps for two types of applications. One application is high-pressure fluid movement, and the other is low-pressure incremental control for displacing small fluid volumes. Both types of pumps have these things in common: each pump can precisely control the movement of incredibly aggressive fluids, and each type is guaranteed to perform as designed for thousands of hours with little to no maintenance.
Lee HPHT (High Pressure, High Temperature) pumps were originally designed for use in the oil industry, but they can be applied to any industry where liquids have to be controlled at high pressures. These pumps can generate up to 10,000 PSI, and can withstand operating temperatures up to 400°F. So if you need a pump that can generate powerful forces in a space-restricted environment, choose this component.
Meanwhile, our low-pressure dispense pumps are intended for scientific, medical, diagnostic, and light industrial applications. Our maintenance-free designs feature incredible control for aspirating and dispensing precise fluid volumes in small increments and deliver dependable solutions that enable you to minimize downtime and position the pump where the system’s fluidics dictate, regardless of accessibility. The adaptable nature of these designs simplifies integrating pumps with other fluid control products to provide flexible pumping options with compromising performance or reliability.
Lee HPHT Pumps are designed specifically for extreme conditions. The innovative axial piston design of Lee HPHT Pumps eliminates the use of elastomers, increases resistance to contamination, and dramatically improves reliability.
Lee HPHT Pumps can generate up to 10,000 psi and are rated for operating temperatures up to 400°F. They have been cycle-tested for over 1000 hours and designed to withstand high levels of shock and vibration. Available in 22 mm and 30 mm diameter envelopes for packaging flexibility, these compact designs are ideal for extreme environments, and limited space found downhole.
Lee HPHT Pumps can be customized to meet specific application requirements, such as altering the mounting configuration or inlet and outlet connections. An integral safety screen can be added to increase protection against contamination.
Fixed volume dispense pumps are solenoid-driven, chemically inert positive displacement pumps, which provide accurate and repeatable dispense volumes ranging from 10 to 175 µL in a small, lightweight package. Lee fixed volume pumps require a simple electrical signal for operation – the pumps aspirate fluid when energized and dispense fluid when de-energized. Integrated check valves, together with our unique housing design and diaphragm seal interface, prevent siphoning when the dispense point is positioned above the fluid reservoir.
Variable volume dispense pumps are stepper motor-driven designs providing full dispense volumes ranging from 50 to 3000 µL. Lee variable volume pumps use a unique drivetrain design to aspirate a volume of fluid accurately and then dispense that fluid volume out in smaller increments. The pumps are available in a single seal or dual seal configuration for improved sealing performance when flowing aggressive fluids. Each pump is equipped with a home sensor to establish the end of stroke position. In some models, an optical motor encoder is included for applications requiring feedback on piston movement.
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 tailored to your industry to learn more.