Centrifugal chemical process pumps for any service as per customers requirement

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... 

This is a Seatless & Glandless valve . The valve up to the size 6" do not have any stuffing box. The salient feature of this valve is that of the piston operation. The piston slides between the two packing rings made of asbestos / PTFE and do not rotate, hence ther...