API 6FA Fire test

[Graybags]

Hi,

Could anyone out there please tell me if there are any significant differences between API 607 and API 6FA, with respect to valve qualification e.g. if I test a 4" CL150 Ball Valve, what other sizes and class ratings will be covered.

Cheers

 

[NGiLuzzu]

Graybags,
I think there are no big differences... but I should check by reading and understanding the relevant standards, of course.
In the meantime, mybe you'll find interesting to take a look at Thread408-97580...

Bye, 'NGL

 

[NGiLuzzu]

According to API Std.607, 4^th edition (1993), pages 7 and 8, paragraph "4.4 Valve Qualification" (see Tables 3 and 4):
- a 4" valve qualifies valve diameters from 3" to 6";
- a 8" valve qualifies all above valve diameters;
- a class 150 valve qualifies classes 150 and 300;
- a class 600 valve qualifies classes 600 and 900;
- a carbon steel body qualifies all body materials listed in Group 1 of ASME B16.34, Table 1;
- a stainless steel body qualifies all body materials listed in Groups 2 and 3 of ASME B16.34, Table 1.

Qualification of fasteners' materials (para. 4.4.8) and "soft" parts (PTFE and other polymers - para. 4.4.9) should also be considered...

I'll add other information and possibly a comparison as soon as I can consult API Std.6FA too.

In the meantime, try also reading Thread809-70969.

Hope this helps, 'NGL