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Forum: Reliability & Maintainability Questions and Answers

Topic: Reliability & Maintainability Questions and Answers

Topic Posted by: Reliability & Maintainability Forum (src_forum@alionscience.com )
Organization: System Reliability Center
Date Posted: Mon Aug 31 12:47:36 US/Eastern 1998

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Original Message:

Posted by: Bob Valerius (robert_m_valerius@md.northgrum.com )
Organization:Northrop-Grumman Oceanic & Naval Systems
Date posted: Tue Apr 24 12:19:36 US/Eastern 2001
Subject: Reliability Data on a bladder for hydraulic fluid
Message:
Hi We are looking for any information on reliability data of a bladder for a hydraulic reservoir. This is in concept phase so the exact material and properties are unknown. If anyone has any suggestions for bladder material and other physical characteristics please advise. Pressure is expected to be 0 - 500 psig, temperature is expected to be between 0 and 35C. Thanks in advance.


Reply:

Subject: Reliability Data on a bladder for hydraulic fluid
Reply Posted by: Gary Sunada (gsunada@alionscience.com )
Organization: RAC
Date Posted: Mon Apr 30 15:12:58 US/Eastern 2001
Message:
An extensive search on bladder materials and reliability has turned up very little that is specific to your requirements. However, there are a small number of references to various materials for high-performance applications, including Permapol-3, a fuel resistant polymer; a spraying/dipping of Teflon dispersion onto a disposable form that results in a bladder that stores in temperatures ranging from 50 to +70 deg. C; and at least one company (http://topdogsystems.com) that sells a fuel bladder for marine and land applications.


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