In a Paper Mill, the pulp and paper stocks are the best example of slurry. Pinch valves can also be used in pulp stock. Pulp Stock can be very thick or quite thin, heavy or dilute depending upon what type of pulping method is used and what stage of the paper making process it is in. Stock can contain knots, wood chips and debris, pulping chemicals, bleaches, pigments, additives and more. Pulp stock, coating and recycled paper lines are some of the most difficult applications for a valve. The feature of our manufactured Pinch Valve For Pulp Stock is an elastomeric sleeve that is the only wetted part of the valve. The sleeve is full-ported, allowing even the thickest pulp stock to flow freely and without obstruction.