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In-line wash flow safety screens

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.

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.

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.

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.

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 1,500 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.

Lee Products

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.

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 keeps 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 and ISO9001:2000 in 2003, while The Lee Company was one of the first aerospace companies 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.

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