SKG Large Bore
The SKG Large Bore (LB) Knife Gate Valve by DFC is a robust, low-maintenance solution engineered to handle the most demanding industrial environments. Designed for bi-directional flow and leak-free performance, this range of valves combines strength, precision, and innovation to ensure long-lasting service across mining, wastewater, slurry, and other abrasive material handling systems.
The SKG Large Bore series features a packingless, full-bore design that ensures minimal maintenance while providing superior flow control. Its structure is optimized to resist corrosion, wear, and mechanical stress, making it ideal for high-pressure applications that require both reliability and durability. With field-proven components, this valve offers consistent performance even under the toughest operating conditions.
DFC’s engineering approach focuses on solving the typical valve challenges that industries face leakage, high maintenance costs, and equipment downtime. By delivering valves that require minimal servicing, the SKG Large Bore offers one of the lowest total costs of ownership in its category.
Each SKG Large Bore Knife Gate Valve is designed with a dual cover plate system that encloses the gate, spindle, and clevis. This design not only enhances safety and stability but also allows for easy removal and maintenance during servicing.
A replaceable wiper blade is included to prevent external contaminants such as dust, slurry, or debris from entering the valve housing. This feature helps maintain internal lubrication and ensures smooth operation, particularly in abrasive environments such as mining and wastewater treatment.
The heavy-duty frame is engineered to handle the higher thrust forces associated with large bore installations. To ensure protection during transport and operation, steel proximity guards are integrated to prevent mechanical damage.
The open support frame allows for convenient handling and installation, simplifying the mounting process even for valves in the DN700 to DN1200 (28”–48”) range.
The SKG Large Bore series is built to deliver exceptional sealing performance and flow control. The bi-directional sealing ensures that the valve can effectively shut off flow from both directions, eliminating downstream leakage and ensuring consistent system performance.
Standard construction includes 316L stainless steel gates for 90 PSI (6 Bar) pressure ratings, while SAF2205 gates are available for systems requiring 150 PSI (10 Bar). These materials offer excellent corrosion resistance and mechanical strength, making the valves suitable for corrosive or abrasive media.
The valve’s spindle cover protects the spindle from slurry splatter and harsh environmental conditions, extending component life and improving reliability. Standard open and closed indicators provide clear visibility of valve position, while lockout provisions can be included for enhanced operational safety.
The SKG Large Bore Knife Gate Valves are designed with flexibility in mind. They can be equipped with a range of actuation options depending on the system requirements, including:
- Manual Handwheel Operation – For simple and cost-effective control.
- Pneumatic Actuation – For rapid, automated valve operation in air-powered systems.
- Hydraulic Actuation – Ideal for applications requiring high-force actuation.
- Electric Actuation – Suitable for automated systems and remote-control applications.
Each actuation type is engineered to integrate seamlessly with the valve’s top bracket design, enabling easy conversion or upgrades in the field without complex modifications.
Every SKG valve is locally manufactured, and quality tested to ensure consistent performance and compliance with international standards. The SKG Large Bore model represents DFC’s dedication to designing valves that solve long-standing operational challenges while reducing lifetime maintenance costs.
Whether used in mining, wastewater management, pulp and paper, or slurry transfer, the SKG LB series ensures optimal flow efficiency, durability, and operational reliability.
By investing in an SKG Large Bore Knife Gate Valve, operators benefit from a cost-effective, long-term solution that minimizes unplanned downtime and delivers smooth performance across all applications.
Key
Features
- Bi-directional sealing for zero downstream leakage
- Heavy-duty frame designed for large bore applications
- Dual cover plate design for full gate enclosure and protection
- Replaceable wiper blade to block contaminants
- Steel proximity guards for protection during transport and use
- 316L stainless steel or SAF2205 gate options
- Open frame for ease of installation
- Spindle cover protection against slurry
- Pneumatic, electric, hydraulic, or manual actuation
- Sizes from DN700 to DN1200 (28”–48”)
- Standard open/close indicators and lockout provisions
Access detailed technical specifications and dimensions.
SKG Product Range
