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Hello, everybody. Could someone to tell me if EPA Method 21 is applicable for control valves and if is there any system of national certification accredited, please ?

Dear, SJones. I am a manufacturer of control valves. I buy metalic materials such as bars, castings and plates. If my client wants a EN10204 3,2 certificate, need do I hire a third part inspector to witness the tests (mechanical, chemical and heat treatment tests) at the foundry or the trader ...

Hello, guys. Their informations are all that I need to decide to do. Thanks a lot.

Thanks a lot, friends. I will thinking a little more.

hello, everybody Could someone help me about 3.2C inspection, please ? We are the valve manufacturer. One of our clients wants certificates according EN 10204 3.2. In order we issue tests and materials certificates. Valve tests have been witnessed by a third party inspector. The materials...

Hello, everybody. There is inside Nace MR0175/ISO15156(2):2009; A2.1.5 a mention about the metalic coatings. That is a not acceptable for preventing SSC. For standard we offer the bolts and nuts to attend NAce with Zinc plated. The material is correct with Nace (B7M-2HM). Our intention is not...

Thanks !!!!

Ok, but I think that I didn't know explain my doubt. I want to test (hydrostatic test) of assembled valves. I need to wwrite a routine for this test. We want to test the gaskets and packing. Do you Know any standard ? Thanks.

thanks a lot, arash807. please, do you know some standard or routine to the test assemvbled valves ?

Please, someone tell me wath means closure test ? In B16.34 and API 598 it´s mentioned. Is it the same hydrostatic test of assembled valve ? I need to write a routine of assembled valve hydrostatic test. I´ll use the same pressure that hydrostatic shell test ? thanks.

Anybody knows labs that perform fire safe tests API607, please?

So, the imperfections are very big. Can I have a porosity of 3 mm on the serrations, since that they are not deeper than the grooves of the serrations. Or, porosity of 1,5 mm that they are deeper than the grooves of the serrations. But the serrations are not deeper than 0,1 mm. We don´t accept...

At the column A and column B (table 3) are there values for imperfections 3 mm and 1,5 mm. That imperfections could be on the serrations ? If yes, it could be there a porosity so big than 3 mm ? What does it means "maximun radial projection of imperfection which are no deeper than the bottom of...

What does it means the Table 3 in ANSI B16.5 ? How can I undestand the table 3 of the norm ansi b16.5 (pag. 61)? What kind of defects is described in?

What does it means the Table 3 in ANSI B16.5 ? How can I undestand the table 3 of the norm ansi b16.5 (pag. 61)? What kind of defects is described in?