KROHNE CALIBRATION RIG FOR SUPERMAGS IN INDIA

KROHNE Marshall India has set up a new calibration rig for magnetic flowmeters from size DN 400 to DN 2000 at their factory in Pune. This rig - the largest in India - was set up in a record time of 10-months.

The rig is essentially similar in design to those in KROHNE Altometer (Dordrecht, Netherlands) and SGAIC (Shanghai, China) with an added feature of velocity control using a separate feedback meter of size DN 600. All controls including pumps and valves are computerized, data recording and printing of calibration report / certificate are performed online, automatically.


The salient features of the rig are:

	An underground sump of 300 m3 capacity
	Tower of 23 mtrs. Height, 3.2 mtrs. Dia. and 180 m3 capacity
	Telescopic design of the horizontal pipe section which allows creation  of gap for any meter size between DN 600 and DN 2000 without removing a single section from the line. For sizes DN 400, DN 450 & DN 500, additional reducers are used

All the pipe sections of the horizontal line are mounted on rails to  facilitate easy and quick creation of opening to mount units of different sizes

	Max. flowrate of 11000 m3/hr
	30 level switches on the tower

As regards the rig accreditation, KROHNE has already  got the Reference Standard calibrated and certified by National Physical Laboratories, New Delhi, which is the designated laboratory in the country for all verification and certification of primary standards.

This rig is the largest in India in terms of flow capacity and size of the meter that can be calibrated on it. A number of consultants, end users and contractors have visited this facility and seen the operation. Their opinion has been unanimous for the sheer size of the rig, capacity and the ease of operation even when calibrating large size meters. It is truly a landmark facility and yet another testimony of the fact that KROHNE is truly a trend setter when it comes to flowmeters and their calibration.