Mining Application
Hydrocyclone Feed and Discharge Isolation
Extend hydrocyclone maintenance intervals using time-tested knife gate valves for feed and discharge isolation of abrasive slurry media.
Better Performing Hydrocyclones With Reliable Feed Isolation
Hydrocyclones separate and classify fine and coarse materials prior to flotation. Fines, or right sized particles, pass through the top of the hydrocyclone (vortex) for processing, while heavier solids discharge though the bottom of the hydrocyclone (apex) and back to regrind or directly to tailings. Isolating the hydrocyclone feed allows the system to maintain pressure, volume and separation.
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Recommended Products
The following products are capable of providing zero leakage shutoff of hydrocyclone feed and discharge lines. They are also engineered for rapid, on-site repair with convenient spare parts kits to minimize downtime and maintenance costs.
The SU10R valve provides bi-directional isolation and features a field replaceable snap-in liner for enhanced protection against abrasion and corrosive slurries, resulting in improved reliability and service life.
- TRUE bi-directional flow and shut-off: allow the valve to be installed in either direction and provide versatility in its application.
- Unique one-piece precision molded high strength polyurethane liner: protects the wetted parts from corrosion and abrasion, ensuring durability and longevity of the valve.
- Compact two-piece split body construction: offers ease of maintenance, making it easier to service and repair the valve as needed.
Size Range
NPS 2 - 24 (DN 50 - 600)
Temperature Rating
Up to 250 °F (120 °C)
Pressure Rating
150 psi (1000 kPa)
The Clarkson KGD wafer style slurry knife gate valve is a high-quality, bi-directional isolation valve designed for optimal performance, durability, and reliability. Ideal for heavy-duty applications requiring ultimate sealing, it offers the latest in elastomer technology with the Mark III sleeve design.
- 100% isolation, bubble-tight shut-off - ensures absolutely zero downstream leakage.
- Double-seated design - provides bi-directional flow and shut-off, allowing for smooth operation.
- Unobstructed flow - eliminates turbulence, minimizes pressure drop across the valve, and prevents any accumulation of solids.
Size Range
NPS 2 to 24 (DN 50 to 600)
Temperature Rating
Up to 300°F (150°C)
Pressure Rating
Up to 200 psi (14 bar) CWP
The Clarkson KGA+ heavy duty slurry valve offers improved seals, full flange body options, and simplified design for easier maintenance. It provides optimal performance in various conditions and100% isolation.
- Improved secondary seal: Capable of being lubricated without disassembly, simplifying valve maintenance.
- Double-seated design: Provides bi-directional flow and shut-off, ensuring 100% isolation and zero downstream leakage.
- Unobstructed flow: Eliminates turbulence and minimizes pressure drop across the valve while preventing solids from collecting and obstructing gate closure.
Size Range
NPS 3 - 60 (DN 80 - 1500)
Temperature Rating
Up to 400 °F (180 °C)
Pressure Rating
100 psi
Expert Insights
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Author: Douglas Morris One of the most ubiquitous operations in any mine is the use of hydrocyclones (cyclones) in the comminution circuit to sort particle sizes for mineral processing. Downstream of this process is the flotation circuit, which can be adversely affected if there is an upset with cyclones. Poor cyclone performance will impact recovery, …
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Andy Coxall joins podcast host Jim Cahill to discuss the challenges in tailings management, the problems with valves not suited for this severe-service application, and why severe-service knife gate valve technology such as the Clarkson KS1 is the best choice for these challenging slurry applications.
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