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Power-User

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What Does "Bridle" Mean?

01/10/2010 7:08 PM

Most conventional instruments are installed either inside a vessel or in a bridle.Due to the maintenance issues, i.e. a vessel would need to be isolated to access an internal
instrument, generally instruments are installed in a bridle. Bridles are designed to
duplicate conditions inside the vessel, but this is virtually impossible – there are usually
only two tapping points, therefore fluids only at the density of the tapping points can enter
the bridle and the temperature of the bridle is unlikely to be the same as the vessel.

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Anonymous Poster
#1

Re: what does "bridle" mean?

01/10/2010 7:16 PM

"Bridle" is just another term for "level column", "stand-pipe", ....

http://www.ohmartvega.com/downloads/ohmart/(CPB)%20Customer%20Product%20Brochures/36638-US.pdf

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Engineering Fields - Piping Design Engineering - Retired Piper

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#2

Re: What Does "Bridle" Mean?

01/11/2010 1:31 PM

wingman1985

Just a few comments to clarify the use of a "Bridle".

a) A "Bridle" is only intended to be used for Level instruments. Therefore the conditions inside the vessel are duplicated in the Bridle.

b) Sometimes a PI (Pressure Indicater) connection might be connected to the upper part of a Bridle. This again would also duplicate the conditions inside the vessel.

c) A Temperature is NOT normally not (and should not be) connected to a Bridle because, as you point out the temperature conditions may not be the same.

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Power-User

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#3
In reply to #2

Re: What Does "Bridle" Mean?

01/11/2010 7:21 PM

your comments are really helpful and thanks again for your help~~~

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#4

Re: What Does "Bridle" Mean?

01/12/2010 8:48 PM

As one who often deals in antique words (such as "proney brake"), a bridle is used to steer a horse.

Yes, your spell check doesn't know about proney either!

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