Cut Through Challenges, Control the Flow.
Wafer Knife Gate Valve
Our Wafer Knife Gate Valves are high-performance isolation devices engineered for efficiency in systems handling demanding media such as slurries, viscous fluids, pulp, and dry bulk solids. The wafer-style body is designed to fit directly between pipe flanges, offering a space-saving, lightweight, and cost-effective alternative to traditional flanged gate valves.
Explore Our Knife Gate Valve Types
Use the categories below to quickly find the valve model that perfectly matches your system requirements.
By Connection Type
Wafer Knife Gate Valve
Cost-effective and compact; ideal for tight spaces. Sandwiched between flanges.
Lug Knife Gate Valve
Features threaded holes, allowing for easy, separate disassembly from either side of the pipeline.
Flanged Knife Gate Valve
High-strength connection, ideal for high-pressure or large-bore applications.
By Flow & Geometry
Through-Conduit Knife Gate Valve
Gate fully withdraws when open, protecting the seat and suitable for abrasive media.
Push-Through Knife Gate Valve
Open bottom design, specifically for high-concentration slurries, preventing media buildup.
Round Port Knife Gate Valve
Standard type, suitable for conventional circular piping systems.
Square/Rectangular Knife Gate Valve
Designed for dry bulk materials, powders, and hopper discharge applications.
By Stem & Body Design
Rising Stem Knife Gate Valve
Stem moves vertically, providing clear visual indication of valve position.
Non-Rising Stem Knife Gate Valve
Stem does not move; suitable for installations with limited vertical clearance.
Bonneted Knife Gate Valve
Defines the presence or absence of a top housing (bonnet) over the stem packing.
Bonnetless Knife Gate Valve
Design without a top bonnet or packing chamber cover, reducing overall height and maintenance points.
Quick-Change Seat Design
Allows the valve seat to be replaced rapidly without removing the valve body from the pipeline.
By Sealing & Direction
Resilient Seated Knife Gate Valve
Uses an elastomer (e.g., EPDM) for bubble-tight sealing in liquid service.
Metal Seated Knife Gate Valve
Metal-to-metal seating; suitable for high-temperature or high-pressure applications.
Elastomer Sleeve Knife Gate Valve
Full sleeve seal used for heavy abrasive slurries, ensuring 100% isolation.
Uni-Directional Knife Gate Valve
Designed to seal pressure effectively from only one side.
Bi-Directional Knife Gate Valve
Engineered to seal tightly against pressure from either side of the valve.
By Material
Stainless Steel Knife Gate Valve
Excellent corrosion resistance (304, 316); ideal for chemical and sanitary environments.
Carbon Steel Knife Gate Valve
High strength and pressure rating for non-corrosive, industrial applications.
Cast Iron / Ductile Iron Knife Gate Valve
Economical choice for general service fluids and municipal water applications.
Duplex Steel Knife Gate Valve
Superior resistance to pitting and stress corrosion cracking in harsh chloride environments.
Ceramic Knife Gate Valve
Designed for ultimate resistance to extreme abrasion and aggressive chemicals.
PVC/Plastic Knife Gate Valve
Used for low-pressure, highly corrosive chemical or acidic media.
Lined Knife Gate Valve
Features an internal lining (e.g., PTFE) for specialized corrosion protection or purity requirements.
By Actuation Method
Electric Knife Gate Valve
Precise, automated control with high thrust; ideal for large valves or remote operation.
Pneumatic Knife Gate Valve
Fast, reliable operation using air; preferred for quick-cycle automation processes.
Hydraulic Knife Gate Valve
Provides maximum force for demanding, ultra-heavy-duty industrial loads.
Manual Handwheel Knife Gate Valve
Basic, reliable operation via direct handwheel.
Bevel Gear Knife Gate Valve
Gear-driven mechanism reducing effort for manual operation of larger valves.
Chainwheel Knife Gate Valve
Allows operation of hard-to-reach valves installed high above the floor.
By Service Type
Heavy Slurry Knife Gate Valve
Specifically reinforced and sealed for highly abrasive, high-density media (e.g., mining tailings).
High Temperature Knife Gate Valve
Built with metal seats and specialized packing for high-heat fluids (e.g., steam).
High Pressure Knife Gate Valve
Engineered with strengthened bodies and flanges to handle extreme pressure ratings.
Sanitary Knife Gate Valve
Designed for easy cleaning and high purity, meeting standards for food and pharma industries.
Throttling /Regulating Knife Gate Valve
Features a V-Port or O-Port on the gate for flow modulation and control.
By Industry Application
Mining Knife Gate Valve
Heavily reinforced valves designed for extreme abrasion and handling high-concentration mineral slurries and tailings.
Pulp & Paper Knife Gate Valve
Specialized to cut through fiber, stock, and viscous media without jamming.
Power Plant Knife Gate Valve
Used for control in demanding systems like flue gas desulfurization (FGD) slurry and ash handling.
Wastewater Treatment Knife Gate Valve
Essential for reliable isolation of sludge, raw sewage, and media with high solids and fiber content.
Food & Pharmaceutical Knife Gate Valve
Sanitary design with polished surfaces and zero-retention features to meet strict hygiene standards.
Be careful when choosing a new valve supplier, the disappointment of poor quality can last much longer than the joy of a low price!
Why Choose TOT Valve Knife Gate Valves? (Engineered for Extreme Reliability)
Our valves are the industry standard for severe service, built upon superior design and uncompromising quality:
Superior Cutting Power: Featuring a precision beveled gate, our valves are designed to physically cut through solids, fibers, and viscous media, ensuring effective closure and eliminating the common clogging issues associated with conventional valves.
Absolute Isolation: Utilizing high-resilience elastomer sleeves, metal-to-metal seating, or bi-directional soft seals, our design guarantees a bubble-tight barrier when closed, enhancing operational safety and environmental compliance.
Extreme Durability: Constructed with certified materials such as 316 Stainless Steel and Duplex Steel, our valves offer exceptional resistance to wear and corrosion, ensuring a long, reliable service life in mining, chemical processing, and wastewater treatment.
Superior Cutting Power
Absolute Isolation
