This paper deals with the experimental results obtained using different shapes of multi-port averaging device at different gauge pressure. The cross-section of the multiport averaging device is essential factor which effects the meter performance. A closed loop air test facility(CLATF) is used for testing and calibration of the flowmeter. which is used to measure the air flow rate or ... https://chefesquipmenters.shop/product-category/mezzalunas/