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PRESSURE RELIEF VALVE INSERT FOR CRITICAL FLOW APPLICATIONS

By Lee Products on

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Finding an effective solution for controlling high upstream hydraulic pressure in applications where a constant volume pump is supplying more flow than the system requires can be a challenge. Examples of critical flow systems where excess flows can be a serious problem include flight controls, steering systems and flow dividers in aerospace, aviation, F1 motorsport and oil exploration applications. However, a new Hi-Damped Pressure Relief Valve Insert introduced by miniature component specialists the LEE COMPANY provides a solution to situations where high or spiking pressure is prevalent.

Standard relief valves are likely to suffer from issues such as instability, erosion and structural damage and all of these undesirable effects have consequences in terms of maintenance, repair, not to mention cost and, potentially, safety. These are the issues which led the designers at the Lee Company to make dual hydraulic dampening chambers a central feature of the new 375 HD PRI. These chambers ensure extremely stable relief flow over various flow rates and pressure combinations, with the added benefit of quiet operation.

Durability and longevity are likely to be key in some of the application environments so the inserts construction entirely of stainless steel meets these requirements while a rugged 440C Poppet and Seat ensure optimum durability. They are available in forward and reverse relief flow directions and offer a range of cracking pressures for 3000, 4000 and 5000 psi systems, with system peak pressures up to 6750 psi.

Set inside a compact footprint to meet the demands of precision micro-hydraulic systems, the HDI PR is available in 7.14mm and 9.53mm diameter options, with a nominal weight as low as 9 grams, up to a maximum of 21 grams.

Like all Lee’s valves the HD PRI is 100% endurance tested to a minimum of 100,000 cycles and inspected to ensure reliable and consistent performance.

More at: http://www.leeproducts.co.uk/blog-articles/industry-breathes-sigh-of-relief-thanks-to-latest-pressure-valve.htm

Further details are available from: Mike Stott, Lee Products Ltd,

3 High Street, Chalfont St. Peter, Gerrards Cross, Buckinghamshire, SL9 9QE UK

Tel: +44 (0) 1753 886664.    Email: sales@leeproducts.co.uk            www.leeproducts.co.uk

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.

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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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