Business Hours

Mon – Thu: 08h00 – 16h30
Fri: 08h00 – 15h00

Contact Details

Tel: +27 10 823 8877
Email: dfc@dfc.co.za

Location

32 Lincoln Road,
Benoni Industrial Sites,
Benoni South
South Africa

SKG Flanged Knife Gate Valves – Heavy-Duty, Low-Maintenance Solutions for Mining & Industrial Applications

The SKG Flanged Knife Gate Valve offers a robust, field-serviceable design tailored for demanding industrial and mining environments.Locally manufactured, this valve is engineered for minimal lifetime maintenance and maximum reliability delivering outstanding performance across wet or dry service conditions, slurry applications, bulk-material handling systems and more. 

At DFC, our mission is simple: to solve typical and persistent valve-related issues. We achieve this by supplying valves that deliver the lowest cost of ownership, unmatched operational reliability, and minimal maintenance demands from installation to end-of-life. The SKG Flanged range is built with that philosophy at its core. 

Advanced Design & Serviceability

The SKG Flanged valve is specially configured for industrial use, offering a full range of actuation and service options to suit diverse on-site requirements. 

Actuation Options
  • Hand Wheel 
  • Manual Gearbox 
  • Pneumatic Actuator 
  • Hydraulic Actuator 
  • Electric Actuator 

This flexibility allows you to choose the most appropriate configuration for your system, whether it’s a manual bypass, automated process, or remote-control scenario. 

Field-Replaceable Sleeves & Gate

One of the standout features of the SKG Flanged valve is its heavy-duty elastomeric sleeves and robust gate, both of which are field replaceable. This means routine servicing can be accomplished quickly and cost-effectively, reducing downtime and extending service life considerably.

Built for Performance & Tough Environments

Designed for rigorous applications, this valve brings together high-end materials and detailed engineering to excel in harsh conditions. 

Key
Features

  • Rated at 150 psi CWP (10 bar) across all sizes, providing confidence for substantial pressure systems. 
  • Bi-directional flow and shut off: engineered for zero downstream leakage, making it reliable in both flow directions. 
  • When fully open, no metal parts contact the flowing media, reducing wear from abrasive particles and preventing contamination. 
  • A design that eliminates traditional seat cavities, thereby preventing build-up of solids and ensuring full gate closure every time. 
  • Heavy-duty elastomer sleeves that are replaceable on-site, ensuring the valve remains operational with minimal maintenance. 
  • Suitable for both wet and dry service environments, making it ideal for processing plants, mining, slurry lines, and more. 
  • Yoke design consists of two yoke plates that fully enclose the gate, spindle and clevis, offering enhanced protection and structural integrity. 
  • Standard bellows protect the spindle from scoring by abrasive particles, particularly important in slurry or mineral handling systems. 
  • Open/Closed indicators are built-in for clear visual status of valve position, enhancing operational safety and visibility. 
  • Lock-out provisions in both open and closed positions for safety-critical applications. 
  • The top bracket is designed to accept manual, pneumatic or electric actuation for easy field conversion, offering future-proof flexibility. 
Why Choose SKG Flanged?

In industrial and mining contexts, several recurring challenges arise abrasive media, solid entrainment, corrosion, high operating pressures, and expensive downtime. The SKG Flanged valve directly addresses these: 

  • Extended Service Life: By preventing metal contact with flowing media and eliminating seat cavities, wear and failure are significantly reduced. 
  • Cost-Effective Maintenance: Field-replaceable components (sleeves/gate) minimise costs and simplify servicing. 
  • Leak-Free Performance: Bi-directional shut-off and zero downstream leakage mean reliable operation and less risk of unplanned maintenance. 
  • Versatile Actuation: Use the same robust valve body while selecting the optimal actuation mode for your system: manual today, pneumatic tomorrow. 
  • Locally Manufactured: The SKG range is manufactured locally, enabling easier support, fast lead times and reduced logistic costs. 
Applications

The SKG Flanged Knife Gate Valve is designed for demanding applications including: 

  • Mining slurry lines 
  • Bulk material transfer systems 
  • Chemical processing where corrosive or abrasive media are handled 
  • Wastewater and effluent lines that require reliable shut-off 
  • Industrial pipelines requiring durable isolation valves with minimal maintenance 
Download Catalogue

For full technical specifications, sizing charts, materials list and actuator options.

SKG Product Range