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Model:
PZ641H

DELCO PZ641H Pneumatic Knife Gate Valve - Flanged, Slurry & Pulp Handling

The DELCO PZ641H Pneumatic Knife Gate Valve is engineered for handling difficult fluids containing fibers, particles, and sludge. Featuring a sharp blade-shaped gate driven by a powerful pneumatic actuator, it effortlessly cuts through suspended solids to ensure a tight seal. It is the preferred solution for pulp & paper, wastewater treatment, and mining industries where standard valves clog.

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Features

A heavy-duty pneumatic knife gate valve with a shearing blade design, ideal for cutting through fibers and slurries in harsh industrial environments.

✅Shearing Blade Mechanism: The sharp, beveled edge of the stainless steel gate acts like a guillotine, shearing through fibers, pulp, and debris upon closure, preventing the jamming issues common in Pneumatic Wedge Gate Valves.

✅Self-Cleaning Seat: As the gate closes, it scrapes adhesive residues off the sealing surface, automatically removing impurities to maintain a reliable seal even with high-viscosity media.

✅Compact & Lightweight: Its wafer-thin body design is significantly lighter and occupies less space than traditional gate valves, simplifying installation and reducing pipeline stress.

✅Pneumatic Automation: Available with Double Acting or Single Acting (Spring Return) actuators, allowing for rapid remote control and fail-safe operation in critical slurry lines.

✅Wide Operating Range: Capable of handling pressures from 1.0MPa to 2.5MPa and temperatures from -29°C to 650°C (with appropriate seals), making it versatile for diverse harsh conditions.

  • PZ641H Pneumatic Flanged Knife Gate Valve 4
    PZ641H Pneumatic Flanged Knife Gate Valve 1
    PZ641H Pneumatic Flanged Knife Gate Valve 2
    PZ641H Pneumatic Flanged Knife Gate Valve 3
    PZ641H Pneumatic Flanged Knife Gate Valve 4
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Key Application Fields

  • Oil & Gas
    DELCO API-certified valves ensuring safety and reliability in demanding high-pressure pipelines.
  • Chemical & Petrochemical
    DELCO corrosion-resistant solutions tailored for handling aggressive acids and hazardous fluids safely.
  • Power Generation
    DELCO solutions efficiently withstand extreme high-temperature and high-pressure steam cycles in power plants.
  • Food & Pharmaceutical
    DELCO sanitary valves with FDA-compliant, crevice-free designs to ensure absolute product purity.
  • Water & Wastewater
    Durable municipal solutions by DELCO, designed for zero leakage and long-term sustainability.
  • HVAC & District Heating
    DELCO valves ensure precise flow regulation to optimize energy efficiency in modern buildings.

Browse our case studies or talk directly with our engineers to discuss your application.

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