Girish,
One of the tenets of a quality assurance system, such as ISO 9001, is that if you change a design you must have available to you the information used for the original design basis? You are attempting to change a design. Have you assured yourself that you have available all the information used in the original selection by the customer? Certainly we in this Forum do not have that information in your short message. So please go back to your customer and seek all the information.
With gaskets, customers somtimes rationalise all their requirements into a few different types so that the trades dont put the wrong one into the most severe service. Some times the customer has not got a clue. Generally those customers that prepare specifications have some engineering back up. If they dont know something they rely upon the expertise of the designer, supplier or constructor and the specification will remain silent and the risk passes to someone with the expertise.
Generally the ill informed try and change designs to save moeny. Vendors try and get the ill informed to change the design because they have a cheaper product and want to win an order. Ask them for a ten year guarantee, accepting of all consequential damages and they will run a mile.
Geoff Stone Received on Fri Mar 23 18:00:00 2007
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