Knife Gate Valve

Australian Valve is the leading Knife Gate Valve Manufacturer & Supplier in Australia. A Knife Gate Valve is a type of gate valve that has a sharp, flat blade which moves in a straight line to cut through and control the flow of fluid in pipelines. It is commonly used in applications where the flow of materials such as slurries, powders, and granular substances need to be regulated. Knife gate valves are known for their robust construction, simple operation, and ability to cut through tough and abrasive materials. They are widely used in industries such as mining, power generation, wastewater treatment, and bulk material handling.

Knife Gate Valve Manufacturer & Supplier in Australia provides several types valves, including:

• Unidirectional Knife Gate Valve: Designed for one-way flow, these valves are often used in applications where backflow is not allowed.
• Bidirectional Knife Gate Valve: Allows flow in either direction and is typically used in applications where flow direction may change.
• Slurry Knife Gate Valve: Designed for the flow of abrasive and corrosive fluids, these valves have a durable construction to withstand the harsh conditions.
• Isolation Knife Gate Valve: Used to isolate a section of piping for maintenance or repair, these valves provide a tight seal to prevent fluid flow.
• Wafer Knife Gate Valve: Designed to fit between two flanges, these valves are easy to install and provide a cost-effective solution for many applications.
• Lug Knife Gate Valve: Equipped with lugs to allow for bolting to the flanges, these valves are commonly used in heavy-duty applications.
• Through-Conduit Knife Gate Valve: Designed for the flow of large solids, these valves have a larger gate to allow for the passage of larger particles.

Parts 

• Body: Holds all the internal components of the valve and connects to the piping system.
• Gate: A movable component that opens and closes to regulate the flow of fluid through the valve. It has a sharp edge (hence the name “knife gate”) that cuts through solid materials to prevent clogging.
• Stem: Attached to the gate and extends through the body to the actuator.
• Packing: Seals the stem to prevent leakage.
• Seat: A ring that seals against the gate to control the flow of fluid.
• Actuator: Operates the gate, which can be manual, pneumatic, or hydraulic.
• Bonnet: Covers the top of the valve body and helps to retain the stem and packing.
• Flange: Used to connect the valve to the piping system.

Advantages

• Durability: Knife gate valves are known for their toughness and ability to withstand harsh environments and corrosive fluids.
• Easy maintenance: The simple design of knife gate valves allows for quick and easy maintenance, reducing downtime and repair costs.
• Versatility: Knife gate valves can handle a wide range of fluids, including liquids, sludges, and slurries, making them suitable for a variety of applications.
• Bi-directional flow: Knife gate valves can be used for both inlet and outlet applications, making them a cost-effective solution for many systems.
• Compact design: Knife gate valves have a compact design, which makes them easy to install and operate in tight spaces.
• Cost-effective: Compared to other types of valves, knife gate valves are often less expensive and provide good value for money.
• Positive shut-off: Knife gate valves have a tight seal, which ensures that they can provide a positive shut-off, even in applications where solids are present in the fluid

Industries & applications

• Mining: Knife gate valves are used in the mining industry to regulate the flow of slurry and slurries in mineral processing operations.
• Wastewater Treatment: Knife gate valves are used to control the flow of wastewater, sludge, and other fluids in treatment plants.
• Power Generation: Knife gate valves are used in power plants to control the flow of steam, condensate, and other fluids.
• Pulp and Paper: Knife gate valves are used in the pulp and paper industry to control the flow of pulping liquor and other fluids.
• Chemical: Knife gate valves are used in the chemical industry to control the flow of corrosive and abrasive fluids in processing and storage operations.
• Marine: Knife gate valves are used in the marine industry to control the flow of seawater, ballast water, and other fluids in ships and offshore operations.

Description

• Available materials: WCB, WC6, WCC, LCB, LCC, Cast iron, Ductile Iron, SS316, SS304
• Size: 2″ to 80″
• Class: 150 to 300
• Nominal Pressure: PN6 to PN40
• Operation: Handwheel Operated, Electric Actuated and Pneumatic Actuated, Gear operated
• Ends: Wafer, Lug, Flanged