Knife Gate Valves, Butterfly Valves
& Ball Valves

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At HPV, we ‘re leading providers of slurry valves for the mineral and processing industry. We serve various industries such as mining, oil and gas and pulp and paper. As well as power generation, water, and related industries. Our clients include design, lead pipe, and project engineers of all major EPCM’s that design mineral processing plants.

We have supplied slurry valves and complete valve packages for many projects globally. Our main product range includes knife gate, butterfly and ball valves. All available with different gate options, drilling types and patterns.

We also offer various actuation options and gear box options to best suit your workflow. For actuation devices such as Hand Wheels or Pneumatic Actuators – we’ve got you covered.

Our experience with different applications enables us to recommend appropriate solutions. We’re committed to ensuring our products and services are of the highest standard. Speak to our expert team today, who can assist with your specific requirements.

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.

Butterfly valves feature rotating discs which open/close to regulate flow. Part of the quarter-turn family of valves, the butterfly is quicker to shut off than other choices. Their speedy on/off functionality enhances process efficiency. Butterfly valves perform best in lower pressure applications. But, there are design options to make the valve withstand higher pressure. We provide options to operate these manually or automatically via an actuator.

In our range we have the S Series Butterfly Valve, ideal for chemical and acidic solutions. With a PFS encapsulated disc with TFM Liner, the S Series offers a perfect sealing system.

Like the butterfly valve, the ball is also part of the quarter-turn valve family. Its design enables flow control through a spherical ball with a hole in its center. The ball offers a tight seal, ensuring little to no leakage even in harsh conditions. The tight seal makes the ball valve ideal for on/off control. Featured in this range is the A-Series Ball Valve, made to handle aggressive media. For information on different ball types we offer – please enquire today.

For more information on any of our valves, please get in touch with one of our experts today! With over 80 years of combined experience, we’ll be able to assist you with the right valve solution for you.