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Lakeside is the exclusive authorized Original Equipment Manufacturer (OEM) representative for Clarkson Knife Gate Valves across Ontario (excluding the Ottawa Valley), Manitoba, and the Kivalliq region of Nunavut. 

As an Emerson Impact Partner, Lakeside provides access to genuine OEM Clarkson valves, local inventory, technical expertise, field support, and lifecycle services. Lakeside is not a reseller, broker, or third-party distributor. We are the only organization authorized by Emerson to supply, support, and service genuine Clarkson knife gate valves within our territory. This provides customers with direct access to OEM products, engineering support, and regulatory compliance documentation throughout the life of the asset. 

With Lakeside you are partnering directly with the authorized OEM channel responsible for product integrity, regulatory compliance, application support, and lifecycle service. 


Benefits include:

  • Direct access to Emerson engineering and technical expertise
  • No risk of non-authorized or grey market sourcing
  • Full lifecycle support aligned with OEM standards
  • CRN compliance
  • Performance & Reliability

Inventory & Availability

Inventory When It Matters Most. Mining and industrial operations cannot afford extended downtime waiting for critical valve replacements. 

Lakeside maintains inventory of Clarkson knife gate valves, spare parts, and repair components. In addition to locally available inventory for manual and automated valve assemblies up to 20” in size, customers have access to the broader Emerson Impact Partner Network across North America. 

This combination helps improve responsiveness while ensuring access to genuine OEM Clarkson products backed by Emerson engineering and support. 

CRN Compliance


Clarkson KGA+ and KGD Knife Gate Valves are registered under Canadian Registration Numbers (CRN) and meet applicable Canadian pressure equipment requirements.

Valves that may appear similar or use comparable model numbers do not automatically carry valid CRN registrations. Compliance can only be maintained when valves are produced by the registered OEM manufacturer and supplied in accordance with the approved registrations.  

 

Lakeside helps customers ensure: 

  • Proper valve selection when CRN compliance is required 

  • Correct model coding aligned with approved registrations 

  • Access to supporting compliance documentation 

  • Full traceability back to OEM manufacturing 

  • Reduced risk during inspections, audits, and project execution 

Need a replacement valve, spare parts, technical support or service? 

Connect with a Clarkson Specialist
1.519.830.5709

Why Clarkson?

For decades, Clarkson knife gate valves have been trusted in some of the most demanding slurry applications found in mining and industrial operations. 

Customers continue to standardize on Clarkson because they benefit from: 

  • Proven performance in abrasive slurry applications 
  • Reliable operation in critical process services 
  • Long service life and reduced maintenance requirements 
  • Genuine OEM spare parts and lifecycle support 
  • Local inventory and field service support 
  • Backing from Emerson engineering and global manufacturing resources 

 

Clarkson valves are commonly applied in: 

  • Tailings systems 
  • Thickener underflow 
  • Slurry transport 
  • Concentrate handling 
  • Process water 
  • General isolation duties 

Engineered for Severe Slurry Service


Clarkson knife gate valves are specifically engineered for demanding slurry applications where valve performance directly impacts production, maintenance costs, and operational reliability. 

A full round port design helps reduce turbulence and wear through the valve body, making Clarkson valves well suited for applications involving high solids concentrations and abrasive slurry media. 

In severe service environments, valve design matters. Selecting the correct valve can help reduce maintenance requirements, improve reliability, and extend equipment life. 

Designed for Long Term Reliability


Clarkson knife gate valves are built for applications where reliability is critical and downtime is costly. They are routinely applied in environments involving abrasive media, frequent cycling, high solids concentrations, and other demanding process conditions.

Genuine OEM Clarkson valves are manufactured in accordance with Emerson engineering standards and are supported through established quality systems, documentation controls, and lifecycle services. 

The use of genuine OEM products helps ensure consistent performance, reliable maintenance planning, and ongoing access to engineering support throughout the life of the asset. 

Local Service & Support


Lakeside supports customers through local technical resources located throughout Northern Ontario and Manitoba, including support for mining operations in the Sudbury and Thunder Bay regions. 

Our team can assist with: 
 

  • Valve inspections and condition assessments 
  • Planned shutdown support 
  • Valve troubleshooting and failure analysis 
  • Maintenance planning 
  • Genuine OEM spare parts identification 
  • Automation and actuation support 
  • Application reviews and valve selection 


When required, Lakeside customers also have access to Emerson engineering resources to assist with complex application and reliability challenges. 

Genuine Clarkson Spare Parts & Maintenance Kits


Using genuine OEM Clarkson maintenance kits helps ensure valves continue performing as originally designed while simplifying maintenance planning and execution. 

Benefits include: 
 
  • Genuine OEM components 
  • Complete maintenance kits under a single part number 
  • Reduced ordering complexity 
  • Simplified outage planning 
  • Improved maintenance consistency 
  • Protection of sealing and wear performance 

Locally stocked spare parts and repair kits help reduce downtime and support faster maintenance turnaround when critical repairs are required.

Clarkson Portfolio

Clarkson Model KGD | Slurry Knife Gate Valves


Features:
  • 100% isolation, bubble-tight shut-off results in absolutely zero downstream leakage
  • Double-seated design provides bi-directional flow and shut-off

Technical Data:
Size Range: NPS 2 to 24 (DN 50 to 600)
Temperatures: Standard sleeve rated to 180°F (80°C), up to 300°F
(150°C) with optional elastomer selection
LEARN MORE

Clarkson Model KGA+ | Heavy Duty Knife Gate Valves


Features:
  • Improved secondary seal is capable of being lubricated without disassembly, implifying valve maintenance
  • Full flange body design with available flange drilling including ASME B16.5, PN10 and PN16 (per DIN & BSstandards) among others
  • Simplified two-piece body design allows for easier rebuilds
  • Higher optional pressure rating possible on selected gate materials, many KGA+ valves can be rated up to 200 psi
  • Meets a wide range of abrasion, corrosion, temperature, and pressure requirements
  • Can be used in wet or dry services easily dealing with large, heavy particles and tramp material

Technical Data:
Size Range: NPS 3-60 (DN 80 to 1500)
Temperatures: Standard sleeve rated to 180°F (80°C), up to 400°F
(204°C) with proper elastomer selection
LEARN MORE

Click to view full lineup of Clarkson Valves

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Need a replacement valve, spare parts, technical support or service? 

Connect with a Clarkson Specialist
1.519.830.5709