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Hi CoCoE, I really do not know, our Customer insist to have such valves (but we can not suceed to know why !) and usually our valves are according to NACE MR0175 or MR0103. Our main suppliers does not match with this standard and I am not sure that this apply to valves. Regards.

Hi, I am looking for valves manufacturers of valves (check and gate) which could be compliant with NACE SP 0403. Usualy our valves are in accordance with NACE MR0175 & MR 0103 and I do not know where I can find those valves (short delivery needed !). Thank you in advance.

Hi, One of our Customer requires fugitive emissions tests acc. ISO 15848 on non return check valves. In my opinion, this test is not applicable to check valves but only to gate or globe valves with packings. is it correct or not ? Thank you in advance.

Hello, Looking for best material for a check valve for cryogenic application on LNG at -196°C Is ASTM A351 CF3 better than A351 CF3M ? Thank you.

Many thanks everybody.

Hi, what is the main difference between Inconel 718 and 750 ? What is the best to suit sour service and NACE requirements ? thank you.

Hi, who can tell me what is trim 2H and 16H ? Regards

Hi thank you for help.

Hi, could somebody tell me which kind of material is A480 FP-M. Is it carbon steel, stainless steel, low temperature material ... ? I can not find anything about this material (only A480 CPM is often used). thank you for help.

Hi, could you tell me if there is any difference between Graphite and grafoil. I think that one is a registred trade mark and the other is the generic material name but ... I need to be sure. thank you for your response.

Hi, as i have only the edition ASME B16.34-2004 could you please tell me on which group is now the CF8C and the A182 F347 and F347H. Thank you in advance.

Thanks. What about valves in WCB body trim 16 ? Some of suppliers told me that in this case seat and disc can be offered in CS (A105 for ex.) because API 600 mention "an overlay deposit such as stellite or equivalent can be used for seating surface where base material is equal or better than...

Hello, Some suppliers are talking about trim Nr 16 in API 600 but in my own versopn there is no mention of this trim. only for trim 12. Does somebody can tell me which version is talking about trim nr 16 ? thank you.

In 2006 there has been a post regarding this API 622. What about it in 2009 ? One of our customer aksed us some valves acc TA LUFT but as we have some problems they suggest to check with API 622. Can somebody tell me the major differences between these 2 standards ? thank you in advance.

Hi, Asking for paint system, I would like to know what does mean "valves are supplied blued and oiled carbon steel". usually I can see zinc phosphate or else. thank you for your help

Do you know if sound level dbA is also needed for on/off actuated ball valves ? I thought it was only for regulating valves. thank you for help.