Rockwin have been engaged in designing, developing, producing and calibrating flowmeters for more than two decades. Rockwin's facilities at Sahibabad, near Delhi include a large and sophisticated Calibration Laboratory which is at par with some of the best in the world.

Present calibration facilities for flowmeters at Rockwin Calibration Laboratory are: 
 

	500mm Bi-directional Positive Displacement Prover designed and operated to API 2531
	100mm Uni-directional Positive Displacement Prover designed and operated to API 2531
	Supplementary Transfer Standard loop on 20" Prover
	Oil Calibration Rig
	Gas Calibration Rig.

As a result of a very detailed laboratory investigation, National Accreditation Board for Testing and Calibration Laboratories, Department of Science and Technology, Government of India, has granted authority to Rockwin Calibration laboratory to calibrate and certify flowmeter transducers.

Flowmeters may be calibrated nominally sized from 5 to 400 mm over a flow rate of 0.06 to 3200 M3/Hr subject to individual pressure drop characteristics. Most type of flowmeters may be calibrated provided sufficient signal conditioning equipment is included to provide an acceptable output compatible with the laboratory electronics.

 ROCKWIN CALIBRATION LABORATORY
 

	Hydraulic Calibration Facility
	Oil Calibration Facility
	Gas Calibration Facility

 

GeneralSpecifications

CALIBRATION RIG	STANDARD	MAXIMUM FLOW RATE (M3/HR)	CALIBRATION FLUID	BEST MEASUREMENT CAPABILITY EXPRESSED AS AN UNCERTAINITY (+/-)
Hydraulic Rig	500 mm PD Bi-Directional Meter Prover	1500	Water	+/- 0.016%
Hydraulic Rig	100mm PD Uni-Directional Meter Prover	120	Water	+/- 0.012%
Hydraulic Rig	Transfer Standards	3200	Water	+/- 0.016%
Gas Rig	Transfer Standards	2500	Air	+/- 0.14%
Oil Rig	Transfer Standards	18	Oil	+/- 0.02%