Pressure absorber?? 1

[oldschooled]

I'm currently updating a P&ID and a person from the rig added an equipment. He says it's a pressure absorber but I can't find any pressure absorber in the P&ID symbology. I'll attach some of the pics he gave me and hopefully some of you can help me with this.

 

[LittleInch]

This would appear to be a pressurizing bladder or surge arrestor.

"pulsation damper" comes close. If it has tappings ( as it seems to from the photo) then just add them

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[LittleInch]

BTW that green rope shouldn't be there. It might be a handy place to loop something, but if it slips a bit it will take that small hose with it.

Get it removed ASAP. Then tell the person who put it there if he or she does it again they will be fired.

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[EmmanuelTop]

It looks like the bladder is one of those "multifunctional devices" in the facility - apart from being a surge arrestor it is also used to hold something

Dejan IVANOVIC
Process Engineer, MSChE

 

[LittleInch]

I'm only partly surprised they didn't tie it to the handy little 1" projection on the top....

At least loop the bloody rope around the pipe once to stop it slipping off, but no times???

At least I've found my next "safety moment" photo.

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[bimr]

Agree, that is a pulsation dampener with air control from Blacoh.

http://www.blacoh.com/sentry1.aspx

http://www.blacoh.com/downloads/literature/SENTRY_Series_P17E11_010_print.pdf

Link

 

[LittleInch]

bimr,

They clearly missed out one of the more crucial benefits - Able to be used as a tether for nylon rope

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[Caloooomi]

Why is it rated for ATEX??

 

[MortenA]

because it got moving parts?

 

[bimr]

The instruments should be ATEX-rated as well. Non-electrical equipment is also covered by the ATEX directive. It covers any equipment that may cause ignition of explosive atmospheres by hot surfaces, friction sparks, electrostatic discharges or other means.

http://www02.abb.com/global/seitp/seitp202.nsf/0/8...

http://www.eng-tips.com/

 

[micalbrch]

It is ATEX stamped because of possible electric charging (ATEX stamped means charging is not possible). Blacoh is the only manufacturer I know who does that. PED is the standard which overrules ATEX here but Blacoh stamps them nevertheless if required. But if ATEX was mandatory here (explosive athmosphere), I would miss the earth conductor.

Anyway, LittleInch' suggestion for the P & ID symbol is correct but do not forget the air charge line.