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steinijr
Participant

Join Date: Jul 2010
Posts: 3

Convert DIN to ANSI Oil Systems Valves

07/08/2010 7:24 AM

I am supposed to supply Dn 50 Shut-off valve authorized for high temperature oil service.The valve shall be full-bore ball valve with flanges conforming to pressure class PN 40. The body shall be of steel, the ball from stainless steel 1.403, the spindle of hard chromed steel and seals and gaskets of PTFE. Normally the oil systems I have came a cross, are designed according to ANSI but this system is design according to din or En. I am interested in offering a ANSI valve similar to this Din description, how would that ANSI description look like
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ducon
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Join Date: Dec 2006
Location: Hop around Toronto, New York & Karachi
Posts: 1876
Good Answers: 19
#1

Re: Convert DIN to ANSI Oil Systems Valves

07/09/2010 7:36 AM

Homework?

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steinijr
Participant

Join Date: Jul 2010
Posts: 3
#2

Re: Convert DIN to ANSI Oil Systems Valves

07/09/2010 7:50 AM

No,it is not a homework, I am a contractor. Would this valve have the same description in ANSI except Flanges conforming to class 300 and 2" in sted of DN50?
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Anonymous Poster
#3
In reply to #2

Re: Convert DIN to ANSI Oil Systems Valves

07/09/2010 8:23 AM

Why not talk to a valve manufacturer with both european and US manufacturing - cameron Ring O in Italy or Tyco france come to mind. For 2" valves people like Worcester or Weir in UK may be able to help. Piper in Oklahoma do a lot in Europe so may be able to help. I think you will find that all the parts of specifications can be matched but from memory the DIN dimensions and flange thicknesses do not match ANSI/ASME.

Re-check your 1.403 number. Should it have another number such as 1.4031 which is a 420 H (martensitic ) steel? 1.4301 is 304 St St and 1.440 is 316L. There are a lot of in between numbers that indicate minor changes in chemistry.
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steinijr
Participant

Join Date: Jul 2010
Posts: 3
#4
In reply to #3

Re: Convert DIN to ANSI Oil Systems Valves

07/09/2010 8:35 AM

Yes it was just a tipe error Stainless steel 1.4301. Yes the flanges differ a little but you would just join it with an other ANSI flange with a weld neck.
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