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Bray's Knife Gate Valves & Slurry Valves provide dependable on-off isolation in demanding applications across industries such as mining, pulp and paper, general industrial, energy, wastewater management, and oil and gas.
Achieve reliable shutoff, longer service life and lower total cost of ownership in utility service to severe slurry. Specify valves with zero leakage to maximize production. We manufacture knife gate valves for light to heavy slurry service in the mining and mineral processing, power, pulp and paper, waste water and chemical industries.
MC Metal Cutting Knife Gate Valves, serrated seat ring, hardened gate and oversized guides combine to provide shearing capability to cut, crush and clear wires, staples and glass, in sizes 3-24", with temperatures to 500°F.
Also known as 4/3 exhaust-center valves, they create two actions, such as extracting and then retracting a double-acting cylinder. Choose from our selection of knife gate valves, including over 350 products in a wide range of styles and sizes. In stock and ready to ship.
What is a knife gate valve? Knife gate valves are designed mainly for on-off and isolation services in systems with high content of suspended solids. Knife gate valves are especially beneficial for handling slurry in addition to viscous, corrosive and abrasive media.
This article will define, differentiate, and clarify the capabilities and constraints of each version of the Knife Gate Valve. This timeline shows each version of the knife gate valve since its inception.
A knife gate valve is a type of linear valve used to control the flow of liquids, gases, or slurries in industrial applications. It consists of a gate, which is a rectangular or circular metal plate, that slides perpendicularly between two parallel surfaces or seats to open and close the flow path. The gate is typically thin and sharp ...
A knife gate valve works by lifting a plate with a planar or “knife” edge from the path of flow that can literally cut through any impediments during closing thereby creating complete closure against a soft sealing surface.
Knife gate valves play a critical role in the ash handling systems of power plants, particularly in the transportation of high-concentration ash slurry and bottom ash. Due to the highly abrasive and sediment-prone nature of ash, the pipelines and equipment within the transport system are prone to blockages and wear, leading to downtime for repairs.
The bottom of the gate has a knife-like bevel that can cut through fibers in the medium, hence the name "knife gate valve." It is used for transporting slurry, coal slurry, mineral powder, dry ash, coal powder, pulp, mud, mixtures of material and water, or material and gas in both wet and dry mediums.