Slide Gate Valve Vs Knife Gate Valve

Knife gate valves perform exactly as the name implies.

Slide gate valve vs knife gate valve.

We handle every facet of the fabrication process from engineering to. Knife gates are to cut through thick liquids and gases. Pratt knife gate and slide gate valves have been produced since 1995. While a knife gate valve performs exactly as the name implies.

These types of valve were originally designed for the pulp and paper industry. Certified tests are available upon request at time of order. Refer to standard shut off chart below notes 1. A knife gate valve is a component that utilizes a blade to cut through clogging of heavy liquids.

Bi directional valves may be tested in one or both directions. Our staff has many years of combined experience in building knife gate valves in particular. Stringy pulp would impinge between the wedge and seat of a normal gate valve and prevent flow shut off. These types of valve were originally designed for the pulp and paper industry.

Whereas a slide gate valve is a component utilizing a slide plate in order to better manipulate or control the flow of dry bulk material. Knife gate valves were designed with a sharp edge to cut through the pulp and seal. This type valve is being used more often now for high temperature steam systems as thermal binding is not a problem. With slide gates only one of the two seats are actually sealed.

Valves such as the butterfly valve and the bull nose knife gate are designed to be used in gas and liquid applications and suffer numerous problems when misused in a dry bulk handling application. In terms of advantages disadvantages knife gate valves are generally limited to ansi class 150. The fundamental difference is the quantum series orifice slide gate is designed specifically to handle dry material like powders pellets and granules. A knife gate has a very thin profile compared to its bulkier counterpart.

Knife gate valves were originally designed for use in the pulp and paper industry. Knife gate valves were designed with a sharp edge to cut through the pulp and seal. Stringy pulp would impinge between the wedge and seat of a normal gate valve and prevent flow shut off.