The flap valve is designed to change the direction of product flow through gravity pipes at explosion and fire hazardous production facilities for storage, processing and use of vegetable raw materials. It consists of a welded body made of galvanised sheet steel with a flap and an actuator based on a gearmotor. The housing is fitted with an axle carrying the flap and the rocker arm.
Limit switches are located on the housing. At the operator's command, the valve flap is set in one of two positions to change the product flow. When the electric power is supplied to the electric motor of the gearmotor, the axis is rotated and the lever mounted on it switches off the supply voltage when it reaches the back pressure sensor.
As a result, the butterfly valve takes the required position. The movement in the opposite direction is the same.
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