MAG8000 with valve in front of it

Hello all,

I have a customer that is interested in MAG8000 but he has a limited amount of space in manhole. He is asking me how much would a valve influence accuracy of MAG8000. The pipe is DN100 (fi 100mm), and the valve can be 20cm away from MAG.

Can anyone give me any answer to this, that does not involve reading stuff from manual, because I have already informed my customer about all of that info. Does anyone have field experience with things like this?

Best regards, 

N.

If your customer can tolerate ±2% error, then Siemens has documentation from some European agency that certifies the Mag 8000 as having error less than ±2% error for custody transfer applications with zero-upstream and/or Zero downstream straight run.

There's a pdf brochure stating this at this URL:

https://tinyurl.com/https-www-industry-usa-sieme

The statement of interest is

"Based on its demonstrated ability to perform in non-ideal conditions, the MAG 5100W and MAG 8000 have received approval for 2% accuracy custody transfer (MI-001) and non custody transfer applications for installation with zero diameter upstream pipe and zero diameter downstream straight run pipe from the sensor."

At one time there were photos floating around of the flow test stand showing offset elbows and tees on the inlet or outlet of the magmeter under test.  I was astounded because for years we'd be warned of the dire consequences of not having sufficient upstream/downstream straight run, but without any citation of what the magnitude of the error would be.  And determining the error has never been a do-it-yourself project - it requires a flow stand which is a rare beast to have access to.

Dan