Through-Conduit Knife Gate Valve
The Through-Conduit Knife Gate Valve is engineered with a full-bore, straight-through flow path. When the gate is fully withdrawn, the bore aligns with the pipeline, eliminating turbulence and protecting the seat from abrasive wear. This design ensures long service life, minimal pressure drop, and excellent sealing performance, making it highly suitable for slurries, abrasive media, and high-consistency fluids.
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Be careful when choosing a new valve supplier, the disappointment of poor quality can last much longer than the joy of a low price!
Key Features
Full-Bore Flow – Provides unobstructed flow with minimal pressure loss.
Seat Protection – Gate withdraws completely out of the flow path, reducing wear.
Abrasive Media Handling – Ideal for slurry, tailings, and media with high solids content.
Robust Body Design – Built for heavy-duty mining, power plant, and process industries.
Bi-Directional Sealing Options – Available for applications requiring sealing in both flow directions.
Customizable End Connections – Wafer, lug, or flanged types to fit project requirements.
Applications
Mining & Mineral Processing – Tailings, concentrate slurry, and abrasive ores.
Pulp & Paper – High-consistency pulp stock and fiber-laden flows.
Power Generation – Bottom ash, fly ash slurry, and FGD systems.
Wastewater & Industrial Slurry – Thickened sludge and chemical slurries.
Technical Specifications
Size Range: 2″ (DN50) to 48″ (DN1200)
Pressure Rating: ASME Class 150 / PN10–25 (higher ratings available on request)
Materials: Cast Iron, Ductile Iron, Carbon Steel, Stainless Steel, Duplex, with optional ceramic or rubber lining
Seat Types: Resilient, Metal-to-Metal, PTFE, or Elastomer Sleeves
Actuation: Manual, Bevel Gear, Pneumatic, Hydraulic, or Electric
Advantages at a Glance
✔ Extended service life in abrasive applications
✔ Reduced downtime due to less seat damage
✔ Lower operating cost compared to conventional knife gate valves
✔ Suitable for both on/off isolation and high-demand slurry handling
* We are not just providing simple quotes but experts in selection, calculation, and drawing.
Through-Conduit Knife Gate Valve – Pricing FAQ
The price depends on size, pressure rating, body/seat material, and actuation type. Since through-conduit valves feature a more complex full-bore design and are often used in heavy-duty slurry applications, they are usually more expensive than standard wafer or flanged knife gate valves.
Their design ensures the gate fully retracts out of the flow path, protecting the seat and extending service life in abrasive media. This requires precision machining, reinforced body construction, and specialized seats, which increases cost compared to standard designs.
Valve size (cost increases significantly with larger diameters)
Pressure class (higher ratings = stronger body, higher cost)
Body material (stainless steel and duplex > carbon steel > cast iron)
Seat design (resilient, metal, PTFE, or sleeve seals)
Actuation method (manual < gear-operated < pneumatic/hydraulic < electric)
Yes, especially in mining, pulp & paper, and power plants where standard knife gate valves wear out quickly. The longer service life and reduced downtime often offset the higher upfront investment.
Absolutely. For large projects or repeat orders, we offer competitive discounts and customized packages.
Simply share your requirements (size, pressure class, material, seat type, and actuator preference), and our sales team will provide a tailored quotation within 24 hours.
