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Double Flap Valves
double-flap-valves-motorized-pendulum-valves

Double Flap Valves (Pendulum Valves)

Reliable Airlock Sealing for Abrasive and High-Temperature Materials

The FIBROS Double Flap Valve is a heavy-duty discharge solution engineered to maintain a strict environmental or pressure seal while transferring highly abrasive, lumpy, or elevated-temperature bulk solids. Utilizing a precise, two stage sequential dumping mechanism, one flap remains fully sealed while the other opens. This batch-transfer process ensures that a continuous airlock is maintained across the valve, making it the ideal choice for demanding applications where standard rotary valves would suffer from rapid wear or jamming.

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  • Technical Specifications
  • Features
  • Industry Applications
Size Range 150mm x 150mm up to 1000mm x 1000mm (Custom sizing available).
Operating Temperature Up to 400°C (High-temp builds available upon request).
Pressure Differential Designed to withstand high pressure/vacuum differentials.
Body Material Mild Steel (IS 2062), Stainless Steel (SS304, SS316)
Flap / Seat Material High-Tensile Steel, SS304/316, or hard-faced alloys for abrasion resistance
Actuation Options Pneumatic Cylinders (Standard), Motorized (Cam-operated), or Gravity/Counterweight
Standard Accessories Solenoid Valves, Proximity/Limit Switches, Pneumatic Filter Regulators, Sequential Timer Panels

  • Two-Stage Sequential Sealing

  • Built for Severe Service

  • External Actuation & Linkages

  • Quick-Access Maintenance Panels

  • Positive Seating

  • Turnkey Control Automation

  • Cement

  • Power & Energy

  • Mining & Minerals

  • Steel Plants

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