Round Port Bonnetless Bevel Gear Heavy Slurry Knife Gate Valve

This Knife Gate Valve is the ultimate solution for dependable manual isolation in large-diameter pipelines carrying high-concentration, highly abrasive slurries. Integrating a heavy-duty design with an efficient Bevel Gear Operator, it overcomes the high operating torque common in large slurry valves, allowing for smooth, manageable cycling by a single operator.

The combination of the Bonnetless body and Round Port design ensures media flows freely without accumulating, guaranteeing consistent, non-clogging shut-off even after extended periods of inactivity.

Performance & Operational Excellence

Service DurabilityHeavy Slurry RatedEquipped with robust internal components (often featuring resilient seats) and a reinforced gate to withstand high shear forces and extreme abrasion.

Feature Category	Technical Detail	Core Benefit
Effortless Operation	Bevel Gear Actuation	Dramatically reduces the required handwheel torque, making the isolation of large, high-pressure slurry lines easy and safe for manual operation.
Slurry Reliability	Bonnetless Design	Eliminates the top valve cavity, ensuring zero retention of solids, fibers, or slurry particles that typically cause gate jamming in conventional valves.
Flow & Capacity	Round Port Geometry	Ensures a full, unobstructed pipeline diameter when open, minimizing pressure drop, turbulence, and wear caused by high-velocity abrasive media.

Ideal Applications

The Bevel Gear mechanism makes this valve a necessity for critical isolation points in large pipeline systems across heavy industries:

Mining & Aggregates: Main tailings lines, coarse ore slurries, and high-density thickener underflow where manual effort must be optimized.
Wastewater Treatment: Primary isolation of large-diameter raw sewage, heavy sludge lines, and grit chamber bypasses.
Power Generation: High-torque isolation on fly ash slurry lines and large-scale flue gas desulfurization (FGD) systems.
Pulp & Paper: Heavy stock isolation and reject lines where fibrous material creates significant friction on the gate.

Technical Specifications (Standard)

Parameter	Specification Range
Actuation Method	Bevel Gear Operated (Manual)
Recommended Sizes	DN300 (12 Inch) and larger (up to DN1200)
Body Design	Bonnetless
Port / Flow	Round Port / Full Bore
Sealing Type	Resilient Seated (Preferred for tight shut-off) or Metal Seated
Connection Type	Wafer or Semi-Lug
Pressure Ratings	PN10, PN16, or ANSI Class 150
Body Material Options	Ductile Iron (GGG40/50), Carbon Steel (WCB), Stainless Steel (CF8M)

Need Automation? This valve is designed for easy field conversion. The Bevel Gear yoke supports the direct mounting of Electric or Pneumatic Actuators for future automation needs.