Slide Gate Valve Vs Knife Gate Valve

Stringy pulp would impinge between the wedge and seat of a normal gate valve and prevent flow shut off.

Slide gate valve vs knife gate valve.

Stringy pulp would impinge between the wedge and seat of a normal gate valve and prevent flow shut off. Our staff has many years of combined experience in building knife gate valves in particular. These types of valve were originally designed for the pulp and paper industry. 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. Knife gate valves were originally designed for use in the pulp and paper industry. A knife gate has a very thin profile compared to its bulkier counterpart. A knife gate valve is a component that utilizes a blade to cut through clogging of heavy liquids.

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. Bi directional valves may be tested in one or both directions. 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. Certified tests are available upon request at time of order.

We handle every facet of the fabrication process from engineering to. In terms of advantages disadvantages knife gate valves are generally limited to ansi class 150. With slide gates only one of the two seats are actually sealed. We specialize in custom knife gate valves from 2 to 96 and above utilizing carbon steel to stainless steels and other weldable alloys.

Pratt knife gate and slide gate valves have been produced since 1995. Knife gates are to cut through thick liquids and gases. Knife gate valves were designed with a sharp edge to cut through the pulp and seal. Refer to standard shut off chart below notes 1.

The fundamental difference is the quantum series orifice slide gate is designed specifically to handle dry material like powders pellets and granules. While a knife gate valve performs exactly as the name implies. Knife gate valves perform exactly as the name implies.