Grounding Rings for GRP Pipe

Preetbrar

Hi,

Is it mandatory to use Grounding rings with MAG3100 or MAG5100W (EPDM/Hard Rubber Liner) for GRP Pipe?

Awaiting your feedback.

Regards,

Davinder Singh

Emerson process controls:

Installation and Grounding of Magmeters in Typical

…ground rings or ground electrodes are required when the piping adjacent to the magmeter does not provide a good electrical connection to the fluid; i.e., the pipe is lined or made of non-conductive material. Ground rings or ground electrodes provide this electrical connection.

MAG flow meter Installation Manual - B Meters

On plastic pipelines and lined metal pipes, OPTIONAL grounding rings can be used at both ends to ensure a good potential equalization. Grounding rings are not included in the delivery.

Flow Measurement 4 - Siemens

For DN 2…10 (1/12”…3/8”) sensor 2 PVDF pipe connections (Max. 70 ºC, PN 8 bar/max 158 ºF, 116 PSI), 1 grounding ring, 1 earthing wire, 3 PTFE gaskets, 6 pcs.

Note: Even if Siemens provides grounding electrodes for its magnetic flowmeters and claims that grounding rings are not necessary for its applications it still provides installation for grounding rings as an option (just in case the surrounding piping provides no easy path to earth for the instrument.

Hope this helps,

Daniel Chartier

I just happened to set up a system today with a 1/2 inch 5100W, with all PVC piping no grounding rings or grounding straps what so ever, remote electronics too.

The system set up perfectly without problems.