Knife Gate Valve Information

  • MERRICK Industries, Inc. combines its expertise in dynamic weighing with its experience in coal handling technology. The result is a line of replacement parts and product upgrades for coal feed systems.

    Knife gate valves are for burner and feeder isolation application. Among the most durable shutoff valves available, they provide a positive seal for pressurized material flow lines.

    A 3-point blade support system provides a wiping action to seat the gate. The gate blade fully retracts out of the material flow stream to prevent flow restriction and minimize blade wear.

    MERRICK knife gate valves are offered with manual, pneumatic, hydraulic, or electric operators. Standard or custom designs provide positive shutoff and protection from coal dust and fly ash contamination.
    • Laminated carbon steel plate and bolted construction for greater strength and ease of maintenance
    • Removable packing gland cheek plates for valve repacking ease
    • Corrosion-resistant Type 304 stainless steel blades
    • Fiberglass packing gland with high temperature graphite lubricant for positive pressure seal and operation up to 500° F
    • Low profi le design
    • NFPA 85 rated (50 psi)
    • Standard flange patterns are per ANSI 125 / 150
  • For Spare parts for this model and more click here

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