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  • Progress report no. 6 on AGA/API-EEC orifice plate coefficient project : Tests to determine orifice plate expansibility factors carried out during the EEC orifice plate coefficients project


During stage 2 of the EEC orifice plate coefficients project, additional tests were carried out at NEL on three orifice plates, with beta ratios of 0.2, 0.57 and 0.75, to determine expansibility factors over a range of orifice differential pressure ratios. On completion of these tests the expansibility values obtained were compared with values calculated using the equation for expansibility factor given in ISO 5167.

Additional information

Authors: REID J, National Engineering Laboratory, Glasgow (GB)
Bibliographic Reference: EUR 13712 EN (1991) 11 pp., MF, ECU 4
Availability: (2)
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