Check Valves suitable for full Vaccum Condition
Check Valves suitable for full Vaccum Condition
(OP)
I am using Stock Check valves of size : 3/4" Socket Weld 800# of make BFE SpA, Italy.
The client has specified that valves shall be suitable for full vaccume condition. Can someone explain what does this mean.
I have checked the catalogue of BFE. It says " BFE valves can be used with standard design in "Medium Vacuum" range (up to 0.001 Torr)."
Thanks
The client has specified that valves shall be suitable for full vaccume condition. Can someone explain what does this mean.
I have checked the catalogue of BFE. It says " BFE valves can be used with standard design in "Medium Vacuum" range (up to 0.001 Torr)."
Thanks





RE: Check Valves suitable for full Vaccum Condition
High-alloy valves for corrosive petrochemical applications.
RE: Check Valves suitable for full Vaccum Condition
I meant the valves which were in stock in BFE. Not manufactured specially for any project.
The valve is a piston type, reduced bore, socket weld check valve , A182 F316L body , piston disc stellited. Tested as per API 598.
I need to confirm to my client if these are "suitable for full vaccume condition".
RE: Check Valves suitable for full Vaccum Condition
Hello Kaleem1013,
See my comment on vacuum in thread408-327392: Valve Ratings: Vacuum vs. Applied Pressure.
Get your customer to exactly specify the 'vacuum' conditions, which is meaningless technically and comercially without any limitations. Then you can start checking if your valve is OK. What about references from producer for the application? (Customer to specify again, if not already givien).
Best luck!
RE: Check Valves suitable for full Vaccum Condition
Chevron seals which work well on positive pressure are a particular issue, but normally this is a line on the data sheet and vendors say if they comply or not.
Only you know your process conditions, but gerhardls post reference tells you lots about what to look for in very low vacuum conditions.
IMO these valves look ok.
My motto: Learn something new every day
Also: There's usually a good reason why everyone does it that way