Round Port Bonnetless Rising Stem Manual Handwheel Heavy Slurry Knife Gate Valve

This valve is specifically engineered for on/off isolation in the most aggressive fluid environments. Designed to withstand the rigors of high-concentration slurries, abrasive media, and fibrous materials, it ensures dependable shut-off where conventional valves fail. The Bonnetless design eliminates the risk of media buildup, while the Rising Stem/Manual Handwheel combination offers clear visual confirmation and reliable control.

Key Features for Heavy-Duty Performance

Feature Category	Feature Detail	Benefit for Slurry Service
Flow & Geometry	Round Port Design	Ensures full, unobstructed flow, minimizing turbulence and abrasion while maximizing flow capacity.
Body Design	Bonnetless Design	Eliminates the internal cavity above the gate, preventing solids and slurry from accumulating and jamming the gate upon closure.
Operation	Rising Stem / Manual Handwheel	Provides clear, immediate visual indication of the gate position (Open/Closed) and ensures reliable, unpowered control.
Service Focus	Heavy Slurry Rated	Built with reinforced guides and a robust, bevel-edged gate to cut through static slurry columns and high-density media.
Sealing (Likely)	Resilient Seated	Typically features an elastomer (e.g., EPDM or Natural Rubber) seat to ensure a tight, bubble-tight seal against liquid-based slurries.
Maintenance	Minimal F-to-F	Often utilized in a compact Wafer or Lug pattern (though not explicit in title), simplifying installation between flanges.

Technical Specifications (Typical)

Parameter	Specification Range
Valve Type	Knife Gate Valve (Heavy Slurry Series)
Operation	Manual Handwheel
Stem Design	Rising Stem (OS&Y – Outside Screw & Yoke)
Body Design	Bonnetless
Port / Flow	Round Port / Full Bore
Nominal Size (DN/NPS)	DN50 to DN1200 (2″ to 48″)
Pressure Rating	PN10, PN16, or ANSI 150 (Varies by size and material)
Body Material	Ductile Iron (Standard), Carbon Steel, or Stainless Steel (Optional)
Gate Material	Stainless Steel (SS304 / SS316), optional Hard Chrome Plating
Seating Material	EPDM, Natural Rubber, or Polyurethane (Specific to Heavy Slurry)

Ideal Industry Applications

This valve is essential for isolation points where media contains a high percentage of solids, grit, or fibers:

Mining & Mineral Processing: Isolation of tailings, high-density slurry transfer, and process pump isolation.
Wastewater Treatment: Primary isolation of raw sewage, sludge thickening, and grit removal systems.
Pulp & Paper: Handling high-consistency stock, wood chips, and reject lines where severe solids are present.
Power Generation: Ash slurry transport and FGD (Flue Gas Desulfurization) systems.

Customization Available:

For remote or high-cycle applications, this valve is readily adaptable for automatic control using Pneumatic Cylinder or Electric Actuators. Consult our engineering team for specialized material and actuation requirements.