Cross Port Plug

Cross Port Plug

Lee Cross Port Plugs are a plugging solution specifically engineered to seal cross port passageways. This configuration is a variant of the original Lee Plug® that set industry standards over 65 years ago. A smooth wall design combined with the field-proven controlled expansion principle creates a permanent, leak-proof seal, without the need for o-rings or sealants. Instal­lation is simple, reliable, and requires no maintenance. Lee Cross Port Plugs are constructed from 6Al -4V Titanium. They have been qualified for proof pressures over 20,000 psi and at temperatures up to 400°F. Configurations are available in 0.250, 0.281, and 0.343 inch diameters. Lee Cross Port Plugs are ideal for isolating sections of a fluidic manifold. They are typically used to plug long passageways created by deep hole drilling that are difficult to access with conventional sealing methods. Typical applications are found in down-hole oil drilling, wireline and completion tools.

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NACE Compliant 250 H Bender Jet

NACE Compliant 250 H Bender Jet

Constructed entirely from MP35N and compliant with NACE MR1075/ISO15156, this multi-orifice restrictor is suited to handle the harsh duty applications typically found in the oil and gas industries. Utilizing a configuration that is similar to the existing stainless steel 250 H Bender Jet, this multi-orifice restrictor is designed to handle demanding system conditions, including high flow rates and large pressure drops. This low Lohm design uses three orifices in series to help lower fluid velocities and reduce the possibility of cavitation. In addition, this multi-orifice design offers a 40% increase in minimum passage size over a comparable single orifice restrictor. Rated for a maximum working pressure of 5000 psi, the NACE Compliant 250 H Bender Jet is offered in seventeen standard Lohm rates, ranging from 600 – 1800 Lohms, and is protected by two integral safety screens for bidirectional flow.

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New Electro-Fluidic Systems Handbook

New Electro-Fluidic Systems Handbook

The 9th Edition of the Electro-Fluidic Systems Handbook is now available. This new handbook contains a number of new products that can help solve complex fluid control problems and enhance the performance of current systems. Detailed information can be found on Lee's high quality 2 and 3-way miniature solenoid valves, latching solenoid valves, high speed micro-dispense valves, nozzles, fixed and variable volume pumps, custom manifold systems and other inert fluid handling components. These products are used for automated liquid handling in medical and scientific instrumentation, analytical/clinical chemistry and in-vitro diagnostic applications. The 323-page handbook includes product specifications, configuration drawings, design considerations and helpful engineering reference material.

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Lo-Lohm 3 Port Latching HDI Solenoid Valve

Lo-Lohm 3 Port Latching HDI Solenoid Valve

The Lee Company continues to expand its High Density Interface (HDI) solenoid valve platform by combining the high flow capabilities of the Lo-Lohm design with the power savings of the Latching design, all within a compact footprint. After supplying only a momentary (10 ms minimum) voltage pulse, this magnetically-latched solenoid valve will hold its flow state until a follow-on momentary voltage pulse (with reverse polarity) is applied to switch its flow direction. Aside from the momentary pulse, no power is consumed while maintaining each flow state. This ultra-low heat and low power 3-port valve is optimized for compact, battery powered instruments such as portable respiratory therapy devices, molecular diagnostic instruments, environmental gas samplers and other OEM flow switching devices where high flow capacity, low power and small size are critical.

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687 Side Exit Pressure Relief Valve

687 Side Exit Pressure Relief Valve

The Lee Company’s new 687 Side Exit PRV is the latest addition to Lee’s line of field proven Pressure Relief Valves. This new valve is ideally suited for hydraulic applications where a fast opening safety relief valve is needed to prevent system damage from pressure spikes. Offered with or without an integral safety screen, the 687 PRV is available in a range of minimum cracking pressures from 400 to 3600 psid. Each Lee Pressure Relief Valve is 100% tested and inspected to ensure reliable, consistent performance.

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High Pressure 500 Pilot Operated Check Valve

High Pressure 500 Pilot Operated Check Valve

The Lee Company’s new High Pressure 500 Pilot Operated Chek® is the latest addition to Lee’s line of miniature check valves. This valve acts like a normal check valve until pressure is applied to the pilot port, which then allows flow in the direction that would normally be blocked. This new valve is ideal for high pressure hydraulic applications with system pressures up to 5000 psi. The maximum restriction when piloted open is only 60 Lohms.

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Titanium Flange Mount Safety Screens

Titanium Flange Mount Safety Screens

The Lee Company now offers a complete line of flange mount, HI-BAR® Safety Screens made entirely of 6AI-4V Titanium. These high strength screens feature a robust, single piece construction that can withstand pressure differentials up to 7500 psid without rupture. Also, with the high strength-to-weight ratio of titanium, these screens offer a weight savings up to 43% when compared to the stainless steel Lee HI-BAR Safety Screens. The lightweight, high strength design makes these screens ideal for applications in the aerospace, space and racing industries. Also, with the excellent corrosion resistance of 6Al-4V titanium in a variety of media including sea water, these screens are suitable for use in marine, medical and oil industry applications

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187 Zero Leak Pressure Relief Valve

187 Zero Leak Pressure Relief Valve

The Lee Company’s 187 Zero Leak PRI (Pressure Relief Insert) is the latest addition to Lee’s line of miniature zero leak pressure relief valves. This new valve is ideal for both pneumatic and hydraulic pressure relief applications where zero leakage is needed. The cracking pressure is preset at the factory with capabilities ranging from 20 psid up to 100 psid. The nominal weight is only 1.5 grams. Each Zero Leak PRI is 100% tested and inspected to ensure reliable, consistent performance.

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Lee Hi-Bar In-Line Wash Flow Safety Screens Take Filtration to a Higher Level

Lee Hi-Bar In-Line Wash Flow Safety Screens Take Filtration to a Higher Level

The Challenge
Protecting components from contamination is essential in critical fluid control applications, such as those found in the aerospace, power generation and automotive industries. While many systems are designed to be relatively immune to low levels of small size contaminants, single larger rogue particles can cause blockages which could result in system failure and downtime.

The Solution
As a specialist in miniature, precision components, The Lee Company is continually developing and enhancing their field-proven range of Safety Screens to effectively block contaminants. A good example of this is the development of a new line-mounted screen, the LEE HI-BAR® Wash Flow Safety Screen. This configuration features a high strength, drilled safety screen integrated within a T-fitting assembly. The main, unscreened flow travels straight through the fitting while fluid exiting through the T fitting end passes through the filter to critical components requiring additional protection. This design can be easily customised to meet a wide range of fitting envelope, material and screen hole size specifications

The Benefits
One of the important benefits of the HI-BAR Wash Flow Safety Screen is its one-piece smooth, internal surface. This eliminates risks associated with traditional wire mesh design filters that contain uneven surfaces and pockets within the pipe diameter which may potentially trap contaminants. With the HI-BAR Wash Flow Screen, these contaminants will be washed uninterrupted downstream in the main, unfiltered flow.

Potential Applications
Safety screens are vital wherever there is a need to protect critical fluid handling systems. While taking advantage of the washing effect to increase screen life, Lee HI-BAR wash flow screens provide protection for servo valves, bearings or any other component requiring finely filtered fluid. Currently they can be found in a wide range of uses in both fuel and hydraulic systems.

Lee Safety Screens
The HI-BAR Wash Flow Safety Screen is the latest addition to the extensive offering of screens available from The Lee Company to suit a wide range of applications. Lee safety screens are available in a variety of installation configurations, sizes and materials including stainless steel, aluminium, titanium, brass, PEEK and MP35N.

Lee HI-BAR Screens can be manufactured with circular hole sizes down to 25 micron or over 1500 micron. In addition, custom configurations have been produced using rectangular slots. These are particularly effective in screening fluids with spherical particles while providing maximum resistance to clogging.