Spectacle Blind
Spectacle Blind
(OP)
What is the exact use of Spectacle Blind?
Some times it is used with valves as spectcle blind gives same effect as that of isolation valves then why Spectacle blind is used? If the Spectacle blind is to be closed from open condition is there any spilage of the fluid ( in absence of Valve)?
Sachin
Some times it is used with valves as spectcle blind gives same effect as that of isolation valves then why Spectacle blind is used? If the Spectacle blind is to be closed from open condition is there any spilage of the fluid ( in absence of Valve)?
Sachin





RE: Spectacle Blind
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"Pumping accounts for 20% of the world's energy used by electric motors and 25% to 50% of the total electrical energy usage in certain industrial facilities." - DOE statistic (Note: Make that 99.99% for pipeline companies) http://virtualpipeline.spaces.live.com/
RE: Spectacle Blind
I see a lot of people using them for maintenance isolation and I think that is a horrible waste of money. You can accomplish the same thing by breaking the flange and inserting a skillet blind--spec blinds are expensive.
Yes, you will always spill a bit when you rotate them. Cost of doing business.
David
RE: Spectacle Blind
RE: Spectacle Blind
Sachin
RE: Spectacle Blind
David
RE: Spectacle Blind
RE: Spectacle Blind
1) With valve for double chk of isolation while doing maintenance
2) To cover up the mallfunction of the valve if any
3) To have mental satisfaction that even if by mistake some one opens the valve then the area should not get fluded.
4) Its a better choice than plain blind as it may get misplace at time when it is required
Thanks a lot
Sachin