I got one spec from my client for syltherm CS (API 5L) piping. It asked all piping system to be shot blasted to SA 2.5 internally and passivated after blasting. Could anyone commented what's the purpose for this?
Thanks and Regards,
I had lots of discussion with my suppliers in regard of fire safe and choice of seals materials for ball valves recently. But I found their technical support could not give me a good answer of why graphite filled PTFE has to be used for body seals for fire safe purpose.
I am curently preparing...
Dear All:
Appreciated if someone can tell me if there are some special requirements for ball valves used for hydrogen gas service. And any national codes for this?
Thanks and Regards,
could any one tell me which codes (api or ul, i am not sure and do not know what number) i shall refer to for equipment layout design for refineries regarding the minimum clearance between different equipment and/or units such as furnaces, air coolers, roads, reactors, battery limits etc, for...
DEAR ALL:
I NEED TO PREPARE PIPING SPEC FOR A WATERWORKS PLANT. BUT MY CLIENT ASK US TO USE BRITISH STANDARDS WITH WHICH I AM NOT FAMILIAR AT ALL. MAY ANYONE TELL ME SOME CODES NUMBERS FOR FOLLOWING ITEMS:
1. MATERIAL CODES FOR C.S., S.S., PVC, UPVCS AND ABS
2. PIPES, FITTINGS, FLANGES, NUTS...
