Hindustan Rubber Industries manufactures Pneumatically Operated Inflatable Butterfly Valve. Hindustan Rubber Industries offers rubber rings, dome valve seals, rubber washer, flange gasket & sleeve couplings gasket, oil seal, conveyor belts, expansion bellow, bag filter cage, dome valve and knife gate valve etc in wide ranges. Pneumatically Operated Inflatable Butterfly Valve is a flow control device used to control and regulate flow of fluid through a section of pipe. This Pneumatically Operated Inflatable Butterfly Valve is available in various grades-75NB, 150NB, 200NB, 250NB and 300NB.