home Home / Product / 气动阀 / Pneumatic Knife Gate Valve for Slurry, Fiber, and High Viscosity Media
Catalog: 气动阀
Model:
PZ641H

Pneumatic Knife Gate Valve for Slurry, Fiber, and High Viscosity Media

The DELCO Pneumatic Knife Gate Valve is a specialized valve engineered for handling challenging media containing particles, fibers, or high viscosity fluids. Its core feature is a blade-shaped gate driven by a pneumatic actuator, which can efficiently shear through media and clean the sealing surface. This robust design makes it indispensable for severe industrial conditions, offering reliable on/off control via clamp or flange connections in systems up to 1.0MPa.

point Size Range: DN50-DN1200
point Material: CI, WCB, Stainless steel etc.
point Connection Type: Wafer, Lugged, Flange
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Features

Shearing Action and Optimized Slurry Handling

Knife Gate Shearing Action: The valve’s defining feature is the blade-shaped design at the bottom of the gate. This mechanism allows the valve to move vertically and effectively shear through thick slurry or material with high fiber content, preventing clogging and ensuring reliable closure.

Pneumatic Automation and Control: Operated by a powerful Pneumatic Actuator, the valve provides quick and automated opening and closing cycles. It is available in both Single Acting (spring reset) and Double Acting (air on/off) configurations to suit various operational requirements.

Harsh Condition Suitability: Specifically designed for harsh working conditions, the gate’s ability to clear its sealing surfaces and the valve’s simple, direct structure make it a durable and low-maintenance choice where conventional valves fail due to buildup.

Pressure-Assisted Sealing: The gate moves perpendicular to the fluid direction. When closed, it relies on the medium pressure (self-sealing) or external force to ensure a forced, tight shutoff, minimizing leakage.

Wide Industrial Size Range: The valve supports both Clamp and Flange Connections and is rated for a Nominal Pressure of 1.0MPa. It is available in large sizes, from DN50 (2″) up to DN500 (or larger), accommodating high-volume flow lines.

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