Flap Discharge Valve,also known as double flap valve or single flap discharge valve,is an indispensable discharging and sealing device widely used in dust removal,environmental protection,metallurgy,building materials,chemical and grain industries.It is mainly installed at the bottom of dust collectors,cyclone separators,silos and hoppers for continuous and uniform discharging of powder,granular and small block materials,while effectively preventing air backflow and dust leakage.

Working Principle

Relying on material gravity and mechanical counterweight or electric/pneumatic drive,the flap plate opens automatically when materials accumulate to a certain weight for discharging.When the material pressure decreases,the flap closes tightly under gravity and counterweight force.It can maintain airtight performance during discharging,avoid outside air entering the equipment,and ensure the normal operation of dust removal and pneumatic conveying systems.

Main Features

Simple structure,stable operation,low noise and long service life.

Good airtight sealing effect,effectively isolate air backflow and prevent dust overflow.

Wear-resistant body and flap plate,suitable for abrasive materials such as ash,cement and ore powder.

Available in single flap and double flap types;can be customized with electric,pneumatic and manual driving modes.

Easy to install,maintain and replace parts,low operating cost.

Application Scope

Baghouse dust collector,cartridge dust collector and cyclone dust removal system

Cement plant,power plant,steel mill,mine and chemical plant raw material silo discharge

Grain,feed and plastic particle conveying and discharging equipment

Environmental protection waste gas and ash discharge treatment engineering