It is a Seatless & Glandless valve. Pinch valve is a modified version of laboratory pinch cock. A rubber sleeve is protected under a cast iron casting. The fluid passing through do not come in contact with either body covering or any other metal parts of the valve except the sleeve. Hence the body and other metal parts are almost permanently not subjected to the corrosive action of the fluid. The flow through the valve is straight and full as that of a pipeline, when the valve is fully open. Further, the collar of the sleeve eliminates gasket. The valve is simple hand wheel operated of rising wheel type. Therefore the operation of the valve is just simple as other wheel operated valve. The in-between stoppage will allow the desired throttling. Thus the valve offers positive control over flowing media and gives 100% shut off. his valve is considered as high as 18%.