Section 142(b) in The Rajasthan Building and Other Construction Workers (Regulation of Employment and Conditions of Service) Rules, 2009
(b)every pipe for carrying pumped concrete is-(i)securely anchored at its end point and each curve on it;(ii)provided near the top of such pipe with an air release valve; and(iii)securely attached to a pump nozzle by a bolted collar or other adequate means;
