Rotary Valves / Feeders are placed under the hoppers or bins to arrange for uniform feed of material to the conveying equipment. Basically it is a volumetric feeding device which helps in applications where the flow rate of the solids needs to be controlled. They can be designed to have approximately 85% volumetric efficiency.
Rotary Valves Application
Rotary Valves have wide application in industry wherever dry free-flowing powders, granules, crystals, or pellets are used. It can be used to handle bulks even under high temperature. However it should not be used for hard and abrasive materials.
Rotary Valve consists of star type rotor and casing. It is widely used for feeding material into pneumatic conveying line and periodical discharge of material from hopper. Rotary valves help in reducing hazards from explosive dust and volatile material due to air tight construction.
Used to feed dry free-flowing powders, granules, crystals, or pellets
Economical solution for automated handling of most discharge dust
Used to control product flow rate to the required rate (fixed or variable)
Can be used to handle bulks even under high temperature
Most common means of feeding pneumatic conveying systems
Also an act as process isolator
Easy to install, operate and maintain
Wide range available depending on application and need
Useful as an explosion and flame barrier
Help in reducing hazards from explosive dust and volatile material due to air tight construction
Available in Inlet Size: 6″, 8″, 10″, 12″, 16″, 20″, 24″ and 30″
Rotor Speed: Max 25 rpm
Body: Manufactures out of MS / CI accurately machined to required tolerance
Rotor: Manufactured out of alloy steel shaft with rotor blades welded to the shaft
Rotor tips can also be provided with rubber, nylon, UHMW material
Bearings: Anti-friction bearings with sufficient radial load rating, of reputed make
Drive Unit: Consisting of electric motor, gear reducer and set of chain/sprocket of adequate rating, duly assembled
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