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APCO AIR VALVE GUIDE - DeZURIK, Inc.
www.dezurik.com1. Use 2% of the media volume divided by the number of high points as the minimum amount of entrapped air. 2. Consider this volume as the basis for the amount of air to be discharged from each high point. AMOUNT OF AiR TO Be diSChARGed, CFM = FlOW CAPACiTy iN GPM x 2% 7.48 or FlOW CAPACiTy iN GPM (As defined and Recommended) 374 3.