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Instrument Bypass Line

Instrument Bypass Line

Instrument Bypass Line

(OP)
We are considering using a 80NB bypass line off a 400NB to install a conductivity probe. The bypass line will have isolation valves and enable on-line maintenance to the probe.

In theory there should be flow, however the concern is that fluid dynamics at the bypass may prohibit flow through the bypass. There is probably a proven method to install such a bypass. Any comments would be appreciated.

RE: Instrument Bypass Line

Try API 554 or 555 as they give some guidance. There is another standard which i will look up for you tommorow.

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