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Solenoid Valves

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Dispense Pumps

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Nozzles

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MINSTAC® Tubing
& Components

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Visco Mixers

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IMH Orifices

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IMH Screens

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IMH Check Valves

Products

LGV Series Genvi Solenoid Valves

The LGV Series, genvi™ solenoid valves are a new generation of versatile and innovative 3-port solenoid valves offering high flow rates, low power and low leakage in a miniature, 10 mm package. Utilizing innovative manufacturing techniques, this novel family of valves is designed to offer application versatility and unmatched reliability in applications flowing air and compatible gases.

This new series of valves is ideal for a variety of medical and scientific applications in markets such as molecular diagnostics, oxygen delivery, environmental monitors, compression therapy and breath analyzers.

  • High Flow Capacity: 200-250 Lohms
  • Spike & Hold Drive Required
  • Low Power Consumption: 318 mW (Hold Power)
  • Low Leakage: 25 SµLPM Maximum (air) at 15 psid
  • Response Time: 10ms
  • Cycle Life: 25 Million Cycles Minimum

Engineered using long-lasting materials, each valve is 100% functionally tested to ensure reliable, consistent, long-term performance. The Lee Company can customize valve performance to meet specific application requirements.

LHD Series Control Valves

The LHD Series is part of Lee’s HDI Platform of solenoid valves, which are compact, lightweight, low power control valves with low internal volume.

The LHD Series solenoid valves are easily manifold mounted, making them the perfect solution for applications where a large number of valves must be designed into the smallest space possible. These valves are generally used in oxygen delivery systems, gas analysis equipment, patient monitors, air calibration devices, ventilators, gas chromatography and dialysis machines.

The LHD Series solenoid valves are available in 2-port or 3-port designs, in conventional and Lo-Lohm models, and in several different mounting styles.

  • Compact Size
  • Lightweight: 2.5 to 4.5 grams
  • Multiple Styles: Plug-In, Face Mount and Soft Tube Ported
  • Low Leakage: Less than 50 SµLPM throughout rated life expectancy
  • Response time as low as 3ms
  • Available Seal Elastomers: Silicone, FKM and FFKM (available upon request)
  • Long cycle life

Engineered using long-lasting materials, each valve is 100% functionally tested to ensure reliable, consistent, long-term performance. The Lee Company can customize valve performance to meet specific application requirements.

LHL Series Control Valves

The LHL Series solenoid valves are compact, magnetically latched valves featuring ultra-low power (as low as 5.5 mJ/switch), low internal volume and low heat dissipation. Ideal for battery powered portable instruments, these latching solenoid valves require only momentary (10-30 ms) pulses of current to switch to and remain in each flow state. For additional flow capacity, a Lo-Lohm Latching model is also available. 

This valve series joins the expansive HDI valve product platform, and are the perfect solution for applications where a large number of valves must be designed into the smallest space possible. Available in 2-Port and 3-Port designs, and in several mounting styles, these valves are easily manifold mounted and are generally used in oxygen delivery systems, gas analysis equipment, patient monitors, air calibration devices, ventilators, gas chromatography and dialysis machines. 

  • Compact Size
  • Lightweight: 2.5 to 4.5 grams
  • Multiple Styles: Plug-In, Face Mount and Soft Tube Ported
  • Low Leakage: Less than 50 SµLPM throughout rated life expectancy
  • Response time as low as 3ms
  • Available Seal Elastomers: Silicone and FKM
  • Long cycle life

Engineered using long-lasting materials, each valve is 100% functionally tested to ensure reliable, consistent, long-term performance. The Lee Company can customize valve performance to meet specific application requirements.

LHQ Series Control Valves

The LHQ Series Quiet Operation solenoid valves feature whisper technology to reduce actuation noise. A typical solenoid valve has an inherent clicking sound when energized, which is caused by the metal-to-metal contact of the moving armature and stationary core. With whisper technology, the inherent actuation noise is reduced by 50% to a sound level measure of less than 37 dBa, ultimately making this series of solenoid valves ideal for improving patient comfort in bedside medical instruments.

As a part of Lee’s HDI Platform of solenoid valves, the LHQ Series are also compact, lightweight valves with very low internal volume. Their small footprint allows them to be easily manifold mounted, making them the perfect solution for applications where a large number of valves must be designed into the smallest space possible. The LHQ Series solenoid valves are available as 3-Port valves in three different mounting styles: Plug-In, Face Mount and Ported.

  • Compact Size
  • Lightweight: less than 4.5 grams
  • Multiple Styles: Plug-In, Face Mount and Soft Tube Ported
  • Low Leakage: Less than 50 SµLPM throughout rated life expectancy
  • Response time as low as 3ms
  • Available Seal Elastomers: FKM and FFKM (available upon request)
  • Long cycle life

Engineered using long-lasting materials, each valve is 100% functionally tested to ensure reliable, consistent, long-term performance. The Lee Company can customize valve performance to meet specific application requirements.

VHS Series Dispensing Valves

The VHS Series solenoid valves are designed for high speed applications requiring precise dispense volumes in the microliter to nanoliter range. These valves are generally used in medical and scientific applications, in markets such as high throughput screening, drug discovery, in vitro diagnostics, human genomics and biotechnology. The following general performance characteristics are offered in this product platform:

  • Low Internal Volume
  • Operating Frequency up to 1200 Hz
  • Operating Pressures up to 120 psig
  • Fast Response Time
  • Spike and Hold Drive Required
  • Different Lohm Rates
  • Available Seal Elastomers: Silicone, EPDM, FKM and FFKM
  • Multiple Porting Options

Each valve is 100% functionally tested for performance, and is designed using materials that ensure reliable, consistent, long-term performance. The Lee Company can customize valve performance to meet specific application requirements.

INK Series Dispensing Valves

The INK Series solenoid valves are the best in class of ink jet valves for drop on demand, large character printing applications. The valves feature high switching performance which is repeatable throughout their intended life, making them ideal for ink dispensing use. The following general performance characteristics are offered in this product platform:

  • Low Power Consumption
  • Operating Frequency: 275 and 600 Hz
  • Operating Pressures up to 10 psig
  • Different Lohm Rates: 1800 and 4100
  • Available Seal Elastomers: Silicone and FKM
  • Multiple Styles: Axial Pin and PC Board Mount
  • Spike and Hold Drive Required

Each valve is 100% functionally tested for performance, and designed using materials that ensure reliable, consistent, long-term performance. The Lee Company can customize valves to meet specific application requirements.

IEP Series Solenoid Valves

The IEP Series solenoid valves are designed for applications requiring extended performance. Available as a 2-way normally closed design, these valves are capable of operating across a wide range of pressure and temperature without sacrificing size. These valves are typically used in applications such as scanning electron microscopes, CubeSat propulsion, precision combustion systems, oil well analyzers and cryogenic surgery devices. The following general performance characteristics are offered in this product platform:

  • Low Internal Volume
  • Operating Pressures up to 800 psig
  • Operating Temperatures up to 275°F (135°C)
  • Response Time as Fast as 0.5 ms
  • Spike and Hold Drive Required
  • Lohm Rate: 4100
  • Available Elastomers: EPDM, FKM and FFKM

Each valve is 100% functionally tested for performance, and designed using materials that ensure reliable, consistent, long-term performance. The Lee Company can customize valve performance to meet specific application requirements.

LFR Series Isolation Valves

The LFR Series solenoid valves are 3-way, chemically inert, isolation style valves, optimized for high flow performance without sacrificing size or weight. These valves are generally used in medical and scientific applications, in markets such as in vitro diagnostics, human genomics and biotechnology. The following general performance characteristics are offered in this product platform:

  • Operating Pressures up to 30 psig
  • Standard Voltages Available: 12 and 24 Vdc
  • Different Lohm Rates: 700, 1000 and 1100
  • Available Seal Elastomers: EPDM, FKM and FFKM
  • Low Power Consumption
  • Multiple Styles: Barbed Port, ¼-28 Port, 062 MINSTAC and Manifold Mount.

Each valve is 100% functionally tested for performance and designed using materials that ensure reliable, consistent, long-term performance. The Lee Company can customize valves to meet specific application requirements.

LFY Series Isolation Valves

The LFY Series solenoid valves are chemically inert valves with zero dead volume. Available in a 2-way or 3-way model, the valves feature a unique internal pinch block design to isolate the fluid while providing precise microfluidic control. These valves are generally used in medical and scientific applications in markets such as in vitro diagnostics, human genomics and biotechnology. The following general performance characteristics are offered in this product platform:

  • Zero Dead Volume
  • Low Internal Volume
  • Operating Pressures up to 30 psig
  • Standard Voltages Available: 12 and 24 Vdc
  • Different Lohm Rates: 1000 and 3200
  • Available Elastomers: FKM and FFKM
  • Multiple Styles: 0.054" Port, 062 MINSTAC, 156 MINSTAC, Manifold Mount and Flange Mount.

Each valve is 100% functionally tested for performance and designed using materials that ensure reliable, consistent, long-term performance. The Lee Company can customize valves to meet specific application requirements.

LFN Series Isolation Valves

The LFN Series solenoid valves are chemically inert, isolation style valves with low internal volume. Available as a 2-way normally closed design, the valves contain a diaphragm seal that isolates the fluid from the valve's inner details, and provides consistent reliable switching performance in the smallest footprint possible.

These valves are generally used in medical and scientific applications in markets such as in vitro diagnostics, human genomics and biotechnology. The following general performance characteristics are offered in this product platform:

  • Zero Dead Volume
  • Low Internal Volume: 13 μL
  • Operating Pressures up to 30 psig
  • Standard Voltages Available: 12 and 24 Vdc
  • Flow Capacity: 2500 Lohms
  • Available Seal Elastomers: EPDM and FKM
  • Low Power Consumption
  • Flange Mount Style

Each valve is 100% functionally tested for performance and designed using materials that ensure reliable, consistent, long-term performance. The Lee Company can customize valve performance to meet specific application requirements.

LFV Series Isolation Valves

The LFV Series solenoid valves are chemically inert, isolation style valves with zero dead volume. Available in a 2-way normally closed model, the valves are rated for bidirectional flow and use a contoured internal flow path design that allows for complete flushing capability. This contoured flow path also minimizes damage to any sensitive fluids passing through the valve. The low internal volume reduces the amount of fluid required to fill the system (otherwise known as transport volume), further reducing the sample and reagent requirements.

These valves are generally used in medical and scientific applications in markets such as in vitro diagnostics, human genomics and biotechnology. The following general performance characteristics are offered in this product platform:

  • Zero Dead Volume
  • Low Internal Volume
  • Operating Pressures up to 30 psig
  • Standard Voltages Available: 12 and 24 Vdc
  • Different Lohm Rates: 1000, 1300 and 2000
  • Available Seal Elastomers: EPDM, FKM and FFKM
  • Low Power Consumption
  • Multiple Styles: ¼-28 Port, 062 MINSTAC, Flange Mount, Barbed Port and Coupling Screw Mount.

Each valve is 100% functionally tested for performance and designed using materials that ensure reliable, consistent, long-term performance. The Lee Company can customize valves to meet specific application requirements.

Fixed Volume Pumps

The Lee Company’s Fixed Volume Dispense Pumps are solenoid driven, chemically inert, positive displacement pumps, which provide accurate and repeatable dispense volumes in a small lightweight package. Requiring a simple square wave electrical signal for operation, the pumps aspirate fluid when energized and dispense fluid when de-energized. The normally closed design with integrated check valves prevents siphoning when the pumps are de-energized. Lee fixed volume dispense pumps are available in three different sizes to cover a wide range of dispense volumes:

  • LPM Series: 10 to 25 μL
  • LPL Series: 25 to 50 μL
  • LPG Series: 100 to 175 μL

These pumps are generally used in medical and scientific applications, in markets such as in vitro diagnostics, human genomics and biotechnology. The following general performance characteristics are offered in this product platform:

  • Chemically Inert
  • Self-Priming
  • High Dispense Accuracy and Repeatability
  • Low Power Consumption

Each pump is 100% functionally tested for performance and designed using materials that ensure reliable, consistent, long-term performance. The Lee Company can customize the performance of a pump to meet specific application requirements.

Variable Volume Pumps

The Lee Company’s Variable Volume Dispense Pumps are stepper motor driven, positive displacement pumps that feature unparalleled reliability and performance. Their size, weight and maintenance free design allows for the pumps to be positioned where the fluidic requirements dictate, regardless of accessibility.

LPD Series – This series of pumps meets the demands of modern day applications providing reliable, consistent, long-term performance and reliability.

LPV Series – This series of pumps offers specialized configurations, including manifold mounted and flushable dual seal designs. LPV Series Pumps are available in standard NEMA 17 and “stacked can” motors where size and weight are critical design requirements.

All Lee Variable Volume Dispense Pumps are offered in standard and high performance models. Most standard performance models are equipped with a home sensor, whereas all high performance models include a home sensor and encoder for more demanding applications. These pumps are generally used in medical and scientific applications in markets such as in vitro diagnostics, human genomics, biotechnology and analytical chemistry. The following general performance characteristics are offered in this product platform:

  • Maintenance Free Design
  • Long Life Expectancy
  • Self-Priming
  • Wide Range of Dispense Volumes
  • High Dispense Accuracy and Precision

Each pump is 100% functionally tested for performance and designed using materials that will ensure reliable, consistent, long-term performance. The Lee Company can customize the performance of a pump to meet specific application requirements.

Nozzles

The Lee Company offers a complete line of nozzles, capable of providing precise dispensing or atomization of fluids. Available in several different mounting styles, these nozzles can be integrated with our VHS Series solenoid valves or used separately and connected with soft flexible tubing.

Dispensing Nozzles

The dispensing nozzles can be mounted to our VHS Series valves or manifolds for dispensing applications. Available in different mounting styles, this setup not only reduces the overall size, but more importantly, it minimizes the amount of transition fluid between the valve sealing surface and nozzle which improves the overall reaction time at the system level.

Atomizing Nozzles

The atomizing nozzles are available in both air-assisted and airless designs. Our air-assisted nozzles provide atomization with as little as 5 psi of fluid and air. These nozzles are available for use with soft flexible tubing. The airless nozzles provide atomization at relatively low pressures (30 psi) without the need for an external air source.

All nozzles are made with materials that will ensure reliable, consistent, long-term performance. The Lee Company can customize performance to meet specific application requirements.

MINSTAC® Tubing & Components

MINSTAC, The Lee Company’s Miniature Inert System of Tubing and Components, is the smallest complete system available for micro fluidic management. The MINSTAC System allows the creation of reliable, compact fluidic systems with the ability to precisely control flow rate, pressure, filtration, atomization and other performance factors.

Visco Mixers

The Lee Visco-Jet Micro-Mixer uses aerospace technology to provide the ultimate in static mixing efficiency. A series of 36 critically controlled spin chambers subject the incoming liquids to a vigorously repeated mixing process. No electrical or mechanical input is required – the mixing energy is drawn from the liquids themselves.

Two sizes are currently offered, differing primarily in their internal volume, to optimize system performance.

  • Low Internal Volume – 10 μL and 250 μL Models
  • Special Sizes as Small as 3 μL Available
  • Material – 316 Stainless Steel
  • Maximum Flow – 45 mL/min. at 70°F, 6000 psid Water
  • Screen Protected Passages
  • Zero Dead Volume
  • Proof-tested to 10,000 psi

Each mixing chamber induces tangentially spinning fluids to reduce their radius of rotation to allow passage into the next chamber, thus increasing angular velocity. This rapidly spinning column of liquid must then reverse its own direction of rotation in order to progress to subsequent spin chambers. The result is a vigorously repeated mixing process.

The mixing in a Lee Visco Mixer is a relatively brief process. The throughput time of the mixer is directly related to the flow rate. The more flow, the briefer the throughput time. It is during this throughput time that the two input flows are combined together for mixing. Any irregularities in either of the input flows will tend to be time averaged during the throughput time of the mixer.

IMH Orifices

Lee Orifices are economical, reliable, highly accurate miniature restrictors. These orifices are 100% flow tested to ensure that every part is within ±5% of its nominal flow rate (tighter flow tolerances are available as special orders). Tight flow tolerances are only possible if entrance and exit conditions are closely controlled. This provides far more accuracy than an orifice specified by hole tolerance. An ordinary hole held to a very tight hole tolerance will not result in a tight follow tolerance.

The Lee Company offers a wide variety of configurations for installation into metal or plastic housings and fittings. They are also available in gas or liquid versions. Gas orifices are tested on clean dry nitrogen and liquid orifices are tested on distilled water. Great care is taken to ensure the accuracy of our automated test systems. To further increase accuracy, orifices are tested in the direction of use.

  • Accurate flow eliminates expensive alternative components and ensures consistent system performance
  • 100% flow tested to ensure all parts are within flow tolerance
  • Multiple material options for design flexibility and compatibility with different fluids
  • Integral safety screens simplify assembly and ensure reliability

IMH Screens

Lee Safety Screens are designed to protect critical fluid control components from rogue contamination. Safety screens are available in a wide range of installation configurations and sizes to meet various system requirements.

Stainless steel woven wire mesh designs offer a reliable and economical solution. Etched safety screens provide maximum open area to reduce pressure drop across the component and increase resistance to clogging. Drilled screens have high pressure capability, can be easily flushed, and are offered in a variety of materials such as PEEK for resistance against harsh chemicals and brass for use in oxygen systems.

  • Maximum contamination protection (micron ratings from 4 to 500) without unnecessary clogging
  • Variety of configurations and sizes available for installation and design flexibility
  • Multiple material options for compatibility with a wide range of liquids and gases

IMH Check Valves

The Lee Company offers a wide range of cartridge-style check valves for installation into metal or plastic housings and fittings. These valves are available with a high quality metal to metal seat or with an elastomeric seal design offering zero leak performance. All valves are 100% tested to ensure consistent, long term operation.

  • 100% tested which eliminates need for system rework
  • Multiple material options for design flexibility and compatibility with aggressive fluids
  • Screened versions available to block rogue contamination and ensure system reliability