About us

Lee Products Ltd

Innovation in Miniature

Since 1948, The Lee Company has pioneered the development of miniature, precision fluid control components for aerospace, down-hole oil tools, machine tools, medical / scientific instrumentation and ink-jet printing.

Lee's unique capabilities in miniaturisation and engineering expertise keep the company at the forefront of fluid flow technology.

Lee Products maintains a sales force of graduate engineers who are ready to assist customers in solving fluid flow problems, and a significant amount of stock to ensure on-time deliveries.

Quality Assurance at Lee is a management commitment of the highest order. Lee Products Ltd. achieved accreditation to ISO9002 in 1999, ISO9001:2000 in 2003 and ISO9001:2008 in 2010 whilst The Lee Company was one of the first aerospace companies in USA to achieve accreditation to AS9000.

The Lee Company has subsidiary companies in France, Germany, Italy and Scandinavia, and is represented by agents and distributors throughout the world.

Visit our worldwide sites through our International Sales Offices page.


Products

 093 Check Valve

093 Check Valve

The 093 check valve is an ultra miniature side-exit check valve. Weighing only 0.14 grammes nominal, the 093 Lee Chek offers a 90% weight saving over ...

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 156 Bender Jet

156 Bender Jet

The new 156 Lee Bender Jet is a miniature, lightweight multi-orifice restrictor. Weighing only 1.1 grams nominal, the 156 Bender Jet offers a 21% weig...

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 250 PRI Pressure Relief Valve

250 PRI Pressure Relief Valve

The new 250 PRI pressure relief valve is the latest addi­tion to Lee’s line of miniature pressure relief valve inserts. This new valve is ideally suit...

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 281 Zero Leak Pri

281 Zero Leak Pri

The new 281 Zero Leak Pri pressure relief valve is ideal for thermal relief and low flow hydraulic pressure relief applications where zero leakage is ...

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 3 Way High Flow Solenoid Valve

3 Way High Flow Solenoid Valve

The new miniature 3-way High Flow Solenoid Valve offers dramatic space and weight savings as well as high reliability and performance. Available in a ...

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 375 Bender Jet

375 Bender Jet

The 375 Lee Bender Jet® is a low Lohm, multiple-orifice restrictor designed for systems with high flow rates and large pressure drops. With a minimum ...

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 375 Bypass Valve

375 Bypass Valve

The new Lee 375 Bypass Valve is designed to shunt flow across an actuator piston when the system pressure is either shut off or lost. The 375 Bypass V...

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 375 High Pressure Relief Valve

375 High Pressure Relief Valve

The 375 High Pressure PRI is a relief valve designed for optimal performance in applications with high backpressure. This new relief valve has shown s...

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 375 PRI/Chek Valve

375 PRI/Chek Valve

The Lee Company’s new 375 PRI/Chek Valve combines the function of a pres­sure relief valve in parallel with a check valve into one easy to install ins...

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 440C Lo-Lohm Check Valve

440C Lo-Lohm Check Valve

A new version of the Lo-Lohm check valve is now available that has been specifically designed for optimal performance in harsh duty applications. Cons...

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 500 High Pressure Flosert

500 High Pressure Flosert

The Lee Company's new High Pressure 500 Flosert is the latest addition to Lee's line of miniature flow regulating valves. These valves are pressure co...

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 5k Flareless Tube Safety Screen Adapter

5k Flareless Tube Safety Screen Adapter

The 5k Flareless Tube Safety Screen Adapter integrates The Lee Company’s field proven HI-BAR screen into a new Ring Locked Adaptor design. Compared to...

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 A.F.O. Plug (Axial Force Only)

A.F.O. Plug (Axial Force Only)

The A.F.O. Plug provides a leak-tight, metal to metal seal in high pressure, high temperature manifold applications. Designed to be both removable and...

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 A.F.O. Plug with an O Ring

A.F.O. Plug with an O Ring

A new version of the AFO (Axial Force Only) plug has been designed to incorporate an O ring for additional sealing in specialised Oil Tool application...

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 Atomizing Nozzles Offer Precise Spray Pattern

Atomizing Nozzles Offer Precise Spray Pattern

The new atomizing nozzles, available in both airless and air-assisted styles, generate a 50-degree hollow cone spray pattern and offer precise, contro...

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 CB Solenoid Valve

CB Solenoid Valve

The new CB Solenoid Valve is economically designed, utilizing a cartridge bobbin coil coupled with our unique MultiSealä technology. The MultiSeal rad...

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 Check Valves for Industrial Gas Turbines

Check Valves for Industrial Gas Turbines

Ideal for use in purge air, water injection and liquid fuel applications, Lee’s new Power Generation Chek® Valves are field serviceable, allowing the ...

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 Hi-Bar Inlet Safety Screen

Hi-Bar Inlet Safety Screen

The Hi-Bar Inlet Safety Screen product line offers a new alternative for inlet filter screen design. Space and weight are minimised by incorporating t...

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 High Pressure 187 and 281 Directional Flow Controls

High Pressure 187 and 281 Directional Flow Controls

The new 187 and 281 High Pressure Flow Controls are the latest addition to Lee’s line of miniature directional flow control valves that provide restri...

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 High Pressure Air Charging Valve

High Pressure Air Charging Valve

The Lee High Pressure Air Charging Valve provides a reliable manually operated valve that facilitates the charging or bleeding of a high pressure gas ...

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 High Pressure Flange Mount Safety Screens

High Pressure Flange Mount Safety Screens

The etched screen product line has been expanded with the introduction of High Pressure 17-7PH Flange Mount Safety Screens. These new screens take adv...

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 High Pressure Micro Solenoid Valve for Completion Tools in Oil Wells

High Pressure Micro Solenoid Valve for Completion Tools in Oil Wells

The Lee Company has developed a Reduced Diameter Solenoid Valve which has a maximum outside diameter of 0.550” (14mm) which is the same as an AA batte...

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 High-Speed Solenoid Valves for Micro-Dispensing

High-Speed Solenoid Valves for Micro-Dispensing

Now available from Lee Products is the VHS micro-dispensing valve. This high-speed (1,200 Hz), two-way solenoid valve is designed for applications whe...

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 Hi-Q Pressure Relief Valve

Hi-Q Pressure Relief Valve

The Hi-Q Pressure Relief Valve is designed for applications that require both a high relief pressure and a high flow rate in a compact package. This n...

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 Lee HI-BAR Plug

Lee HI-BAR Plug

The Lee HI-BAR Plug is a reliable, leak-tight, threaded plug which has been designed to seal large passageways in hydraulic and fuel system manifolds....

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 Lo Lohm HDI Solenoid Valve

Lo Lohm HDI Solenoid Valve

The Lee Company 's High Density Interface (HDI) solenoid valve just got better by offering more flow capacity without sacrificing size and weight. Ima...

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 LPL2 Inert Solenoid Pump

LPL2 Inert Solenoid Pump

The Lee Company’s new LPL2 Inert Solenoid Pump is the latest addition to the line of fixed vol­ume pumps. The pump features a revolution­ary port head...

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 Manual Override Solenoid Valve

Manual Override Solenoid Valve

A new solenoid valve has been developed which has a manual override capability for typical applications in engine cowl door systems and cargo door act...

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 Micro-Dispense Nozzles

Micro-Dispense Nozzles

Lee Micro-Dispense Nozzles provide a convenient method of accurately controlling dispensed volumes when used in conjunction with VHS Micro-Dispense So...

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 Miniature 2-Way High Flow Solenoid Valve

Miniature 2-Way High Flow Solenoid Valve

The Miniature 2-Way High Flow Solenoid Valve is a two stage version of the existing Lee piloting solenoid valve, capable of flows up to 6.0 USGPM at a...

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News

Sub-Miniature Latching Solenoid Valve

Sub-Miniature Latching Solenoid Valve

The new sub-miniature latching solenoid valve is specifically designed for applications that demand ultra-low power, low heat and small size. These fe...

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Hi-Q Pressure Relief Valve

Hi-Q Pressure Relief Valve

The Hi-Q Pressure Relief Valve is designed for applications that require both a high relief pressure and a high flow rate in a compact package. This n...

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NACE Compliant 15,000psi Check Valves

NACE Compliant 15,000psi Check Valves

The new range of Lee check valves has been specifically designed for the harsh duty applications found in the Oil Tool Industry such as chemical injec...

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Quiet Operation 3 Way Solenoid Valve

Quiet Operation 3 Way Solenoid Valve

The Lee Company’s new Quiet Operation High Density Interface (HDI) is a 3-way solenoid valve designed to achieve patient comfort by reducing actuation...

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Lo Lohm HDI Solenoid Valve

Lo Lohm HDI Solenoid Valve

The Lee Company’s High Density Inter­face (HDI) solenoid valve has been improved by offering more flow capacity without sacrificing size and weight. T...

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Manual Override Solenoid Valve

Manual Override Solenoid Valve

A new solenoid valve has been developed which has a manual override capability for typical applications in engine cowl door systems and cargo door act...

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Atomizing Nozzles Offer Precise Spray Pattern

Atomizing Nozzles Offer Precise Spray Pattern

The new atomizing nozzles, available in both airless and air-assisted styles, generate a 50-degree hollow cone spray pattern and offer precise, contro...

Read More
093 Check Valve

093 Check Valve

The 093 check valve is an ultra miniature side-exit check valve. Weighing only 0.14 grammes nominal, the 093 Lee Chek offers a 90% weight saving over ...

Read More
NACE Compliant Pressure Relief Valve

NACE Compliant Pressure Relief Valve

The 0.281 inch diameter Pressure Relief Valve is now available made from corrosion-resistant materials that are compliant with NACE specification MR01...

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156 Bender Jet

156 Bender Jet

The new 156 Lee Bender Jet is a miniature, lightweight multi-orifice restrictor. Weighing only 1.1 grams nominal, the 156 Bender Jet offers a 21% weig...

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Wash Down Nozzles

Wash Down Nozzles

A new range of micro wash down nozzles for washing cuvettes, test tubes, 96 well plates and other similar laboratory receptacles as well as purging / ...

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High Pressure 187 and 281 Directional Flow Controls

High Pressure 187 and 281 Directional Flow Controls

The new 187 and 281 High Pressure Flow Controls are the latest addition to Lee’s line of miniature directional flow control valves that provide restri...

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Technical Hydraulic Handbook - Edition 11

Technical Hydraulic Handbook - Edition 11

Edition 11 of the Technical Hydraulic Handbook is now available and provides engineers with a valuable reference for the wide range of Lee fluid contr...

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The Lohmolator (Hydraulic / Pneumatic Slide Rule)

The Lohmolator (Hydraulic / Pneumatic Slide Rule)

The Lohmolator is a useful slide rule device which can be used to calculate the Lohm rate (ie orifice size) of a restrictor or a valve for a given fl...

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5k Flareless Tube Safety Screen Adapter

5k Flareless Tube Safety Screen Adapter

The 5k Flareless Tube Safety Screen Adapter integrates The Lee Company’s field proven HI-BAR screen into a new Ring Locked Adaptor design. Compared to...

Read More
High Pressure Air Charging Valve

High Pressure Air Charging Valve

The Lee High Pressure Air Charging Valve provides a reliable manually operated valve that facilitates the charging or bleeding of a high pressure gas ...

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VHS Injection Manifold Mount System

VHS Injection Manifold Mount System

The Lee VHS Injection Manifold Mount System allows for the precise injection of fluid into a flow stream. Using this system, any ported Lee VHS micro-...

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High Pressure Flange Mount Safety Screens

High Pressure Flange Mount Safety Screens

The etched screen product line has been expanded with the introduction of High Pressure 17-7PH Flange Mount Safety Screens. These new screens take adv...

Read More
375 High Pressure Relief Valve

375 High Pressure Relief Valve

The 375 High Pressure PRI is a relief valve designed for optimal performance in applications with high backpressure. This new relief valve has shown s...

Read More
440C Lo-Lohm Check Valve

440C Lo-Lohm Check Valve

A new version of the Lo-Lohm check valve is now available that has been specifically designed for optimal performance in harsh duty applications. Cons...

Read More
281 Zero Leak Pri

281 Zero Leak Pri

The new 281 Zero Leak Pri pressure relief valve is ideal for thermal relief and low flow hydraulic pressure relief applications where zero leakage is ...

Read More
Variable Volume Pumps

Variable Volume Pumps

A new brochure detailing the range of miniature dispense pumps has now been published. The pumps are available in three types, high and standard perfo...

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Series 300 Micro Inert Valve

Series 300 Micro Inert Valve

The new Series 300 Micro Inert Valve is a 2 way, normally closed solenoid valve that facilitates higher packing density, enabling more valves to be po...

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375 Bender Jet

375 Bender Jet

The 375 Lee Bender Jet® is a low Lohm, multiple-orifice restrictor designed for systems with high flow rates and large pressure drops. With a minimum ...

Read More
Check Valves for Industrial Gas Turbines

Check Valves for Industrial Gas Turbines

Ideal for use in purge air, water injection and liquid fuel applications, Lee’s new Power Generation Chek® Valves are field serviceable, allowing the ...

Read More
3 Way High Flow Solenoid Valve

3 Way High Flow Solenoid Valve

The new miniature 3-way High Flow Solenoid Valve offers dramatic space and weight savings as well as high reliability and performance. Available in a ...

Read More
Micro-Dispense Nozzles

Micro-Dispense Nozzles

Lee Micro-Dispense Nozzles provide a convenient method of accurately controlling dispensed volumes when used in conjunction with VHS Micro-Dispense So...

Read More
High-Speed Solenoid Valves for Micro-Dispensing

High-Speed Solenoid Valves for Micro-Dispensing

Now available from Lee Products is the VHS micro-dispensing valve. This high-speed (1,200 Hz), two-way solenoid valve is designed for applications whe...

Read More
Lee HI-BAR Plug

Lee HI-BAR Plug

The Lee HI-BAR Plug is a reliable, leak-tight, threaded plug which has been designed to seal large passageways in hydraulic and fuel system manifolds....

Read More
A.F.O. Plug (Axial Force Only)

A.F.O. Plug (Axial Force Only)

The A.F.O. Plug provides a leak-tight, metal to metal seal in high pressure, high temperature manifold applications. Designed to be both removab...

Read More

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Contact Us

Lee Products Ltd

  • 3 High Street
  • Chalfont St Peter
  • Gerrards Cross
  • Buckinghamshire
  • SL9 9QE

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