A knife gate valve isolates the flow of pipeline media by lowering the gate (knife) into the seat. The lowering of the gate will then shut off the pipeline. Raising the gate will open the valve and allow flow through the pipeline. The gate moves via a manual hand-wheel, gearbox, or a choice of pneumatic, hydraulic, or electrical actuators. These types of valves are isolation valves and are not made to control flow. They are either fully-opened or fully-closed. Please note we have a range of slurry control valves we can provide if you need control.
A knife valve is effective in mineral processing plants with pipeline media. Media such as slurries and solutions are difficult for a lot of gates to operate in. The knife’s sharp blades enable an easy cut through heavy liquids. This makes the gate valve knife a recommended gate for harsh environments.
Featured in this range, is our exclusive KGI Series Knife Gate Valve. The KGI is an industry renowned valve for difficult slurry applications. The patented design provides a rugged body, replaceable liner, and an extra-thick gate. The long-lasting, durable qualities of the KGI Series have made this a popular pick. The slide gate valve is a perfect on/off knife valve.
For high pressure applications, we have a Class 150 valve, as well as Class 300 valve body. Both of these bodies are available in our KH Series Knife Gate Valve. The pressure chamber with energised packing, eliminates leakage from the gland. Making the KH ideal for high density slurry & tailings,
We also provide metal seated valves for general slurry applications – such as the HSM Series. As well as the HSR Series for dirty water and suspended solids.