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ansi acceptable flange usage
would like some input. we have an engineer who has, due to a machining error on a threaded hole for some electrical feedthru on a 1500# rf flange, decided to turn the flange around and us the normally atmosphere exposed side to mate with the companion rf flange. his assumption is that it will work like a ff flange. this is on a code certified pressure vessel. expected temp range is 200 c at 600 psi mineral oil.
comments on this practice would be appreciated.
check out our whitepaper library.
normally the backside of a flange is not smooth enough to do as you state, which isn't the best idea to start with.
normally you can cleanup the backside and relieve the flange to configure it as a raised faced flange and use it as a normal flange. with your conditions there should be problem.
you should document, evaluate using the flange in the reverse with the new dimensions, after reworking of the flange.

2009-09-05, 03:44 PM	#1
huangyhg 超级版主注册日期: 04-03 帖子: 18592 精华: 36 现金: 249466 标准币资产: 1080358888 标准币	ansi 9standards0 code issues - acceptable flange usage ansi acceptable flange usage would like some input. we have an engineer who has, due to a machining error on a threaded hole for some electrical feedthru on a 1500# rf flange, decided to turn the flange around and us the normally atmosphere exposed side to mate with the companion rf flange. his assumption is that it will work like a ff flange. this is on a code certified pressure vessel. expected temp range is 200 c at 600 psi mineral oil. comments on this practice would be appreciated. check out our whitepaper library. normally the backside of a flange is not smooth enough to do as you state, which isn't the best idea to start with. normally you can cleanup the backside and relieve the flange to configure it as a raised faced flange and use it as a normal flange. with your conditions there should be problem. you should document, evaluate using the flange in the reverse with the new dimensions, after reworking of the flange. __________________ 借用达朗贝尔的名言：前进吧，你会得到信心! [url="http://www.dimcax.com"]几何尺寸与公差标准[/url]