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Relief Valves suit low-pressure applications.

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Relief Valves suit low-pressure applications.
Relief Valves suit low-pressure applications.
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April 17, 2003 - Series L500 relief valves are accurate to 5% at crack pressures from 0.2–15 psi. They eliminate sticking and elastomer set common in low-pressure relief valves. Units are available as inline and vent-to-atmosphere with deflector cap.

L500 Low Pressure Relief Valves

(Archive News Story - Products mentioned in this Archive News Story may or may not be available from the manufacturer.)

Circle Seal Controls, Inc.
2301 Wardlow Circle, P.O. Box 3300
Corona, CA, 92880

Press release date: April 11, 2003

Circle Seal Controls announces the L500 Series low-pressure relief valves. The L500 Series Relief Valves eliminate inefficiencies common with typical low-pressure relief valves on the market today. The L500 Series is accurate to +/- 5% at crack pressures from 0.2 to 15 psi, where most relief valves have a greater than 50% tolerance. The L500 Series eliminates sticking and elastomer set common in low pressure relief valves. The L500 Relief Valves are available as in-line or vent-to-atmosphere with a deflector cap.

The L500 Low Pressure Relief Valves are designed and manufactured to meet the rigorous OEM industrial application requirements. Circle Seal Controls can provide solutions for most any relief valve application. A team of experienced application specialists, qualified engineers and worldwide distribution network makes it possible for Circle Seal Controls to continue to provide state of the art technology and the high level of problem solving ability with a stringent quality control and responsive customer service that our customers have come to expect.

Circle Seal Controls offers an extensive line of relief / check valves, pressure regulators, shut off valves and solenoid valves that are designed to meet the most rigorous quality requirements. For more information regarding Circle Seal Controls products, please visit our website at For questions on the release, please contact George Teets at
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