Digidale Conveyors Pvt. Ltd.

Shivaji Nagar, Thane, Maharashtra

Double Flap valves, also known as or double flap gates, are a type of airlock valve commonly used in industrial applications as a component in bulk material handling applications. Double flap valves are primarily used to discharge chunky or fibrous, bulk materials from hoppers, bins, and cyclones operating under positive or negative pressure.

Advantage -

• Digidale Double flap valves are IDEAL to discharge a flow of material while at the same time serving as an airlock transition point to preserve the pressure differential below the valve.
• Pressure & Dust-tight construction.
• This type of material handling valve is ideal for use with bulky or abrasive materials that would tend to jam or damage a rotary feeder.

• Operation -

  Double flap valves have two trap-door flap plates which open and close on an alternating cycle. The top gate opens to allow collected material to drop through onto the bottom gate. The top gate then re-closes to prevent air leakage above the valve. The bottom gate then opens to allow material to pass completely through the valve. The bottom gate then re-closes to prevent air leakage below the valve. This cycle is continuously repeated in order to maintain a steady discharge of material from the valve, while maintaining a positive seal on the system.

Blow-thru rotary valves are used for introducing fine free-flowing material into pneumatic conveying systems. The valves in this series have been designed for applications with certain non-abrasive materials, where the product required an assist to remove it from the vane pockets. Meets low headroom requirements. The valves itself becomes a direct component of the pneumatic system.

Valves for line sizes from 1 to 6 inches available. Fabricated or cast construction. Rotors are eight-vane, partially-filled type. Fabricated construction. Rotors with adjustable tips are available as an option. Inspection ports can be supplied and are recommended when adjustable tip rotors are used.

Rectangular blow-thru valves are used for systems requiring greater capacity without increasing the overall height. Standard models are available in double widths other sizes can be supplied on special order.

Features - Operation :- heavy-duty operation to 15 psig, and temperatures up to 250 f. Construction :- cast iron, fabricated carbon steel or stainless steel. Rotor :- 8 vanes, open ends, fabricated construction. Types : partially-filled, with or without adjustable tips . Oblique v-shaped cross section . Flange :- square or round inlets. Blow-thru line :- supplied with plain ends for compression couplings. Bearings :- sealed, heavy duty, ball bearings. Packing :- three ring shaft packing glands with square braided asbestos and teflon . Drive :- first quality, parallel-shaft gear motor, side mounted, 3 phase. 60 hertz, 230 460 volt, totally enclosed includes : sprockets, roller chain, and safety guard

Blow-thru rotary valves are used for introducing fine free-flowing material into pneumatic conveying systems. The valves in this series have been designed for applications with certain non-abrasive materials, where the product required an assist to remove it from the vane pockets. Meets low headroom requirements. The valves itself becomes a direct component of the pneumatic system.Valves for line sizes from 1 to 6 inches available. Fabricated or cast construction. Rotors are eight-vane, partially-filled type. Fabricated construction. Rotors with adjustable tips are available as an option. Inspection ports can be supplied and are recommended when adjustable tip rotors are used.

We hold immense appreciation in offering superior quality Quick Opening Rotary Airlock Valve. These valves are manufactured in adherence with set industry standards and norms by our expert professionals.

Rotary air lock valve are suitable for Coffee, Detergents, Chemicals, Dry foods, Grains, Plastic, Starch, Sugar, Drugs , Flour , etc. These airlock valves have close operating clearances for optimum efficiency They are designed to control the flow in dry solid metering, discharging, and also in pneumatic conveying systems operating under negativepositive pressure differential.Digidale Side Entry Rotary Air Lock sizes ranging from 75 mm to 800mm and are available in various material of construction such as SS-316, CIMS, SS-304, SS-316.L. Rotary Air Lock Valves are available in Side entry design supplied as per customers requirement.

Digidale can help the customer to choose the right valve for any application.We have expertise in developing testing, and specifying Side Entry rotary airlock valves to handle various products like, fibrous, granular, free flowing, and dry materials. The side entry rotary airlock valve is used in airlock applications where product shearing is a problem. This type of rotary airlock valve derives its name from the offset inlet and outlet flanges, where the product enters the side of the rotor instead of the top. On a normal rotary airlock valve, shearing takes place as the rotor rotates into the housing. When these two straight edges meet on a typical drop thru, this provides a pinch area where the product can shear and/or jam. With the side entry rotary airlock valve, the product is caught on the upswing of the rotor blades so that the product is constantly falling away from the shear point. The rotor pockets also do not fill up as completely, additionally reducing the likelihood of shearing. Lastly, the throat has a V shape which helps push product out of the way. Side entry rotary airlock valve sizes: 6, 8, 10, 12, 14, 16 and 20 inch round./Sq.

Specifications : Side Entry Rotary airlock are used as metering devices for dry free flowing materials of various size shapes, . The capacity of Digidale Side Entry valves varies from 50 kg/hr to 50, 000 kg/hr depending on the product characteristics and virtually in almost all industries working under adverse operating conditions of temperature and pressure. Digidale Side Entry Valves are suitable for Coffee, Detergents, Chemicals, Dry foods, Grains, Plastic, Starch, Sugar, Drugs , Flour , etc. These airlock valves have close operating clearances for optimum efficiency They are designed to control the flow in dry solid metering, discharging, and also in pneumatic conveying systems operating under negative/positive pressure differential. Digidale Side Entry Rotary Air Lock sizes ranging from 75 mm to 800mm and are available in various material of construction such as SS-316, CI/MS, SS-304, SS-316.L. Rotary Air Lock Valves are available in Side entry design supplied as per customers requirement.

Digidale can help the customer to choose the right valve for any application. We have expertise in developing testing and specifying rotary airlock valves to handle various products like, fibrous, granular, free flowing, and dry materials.Rotary airlock are used as metering devices for dry free flowing materials of various size shapes, used with mixers, tanks, blenders, silos, classifiers, dryers, dust collectors, hoppers and cyclone collectors. The capacity of Digidale valves varies from 50 kg/hr to 50, 000 kg/hr depending on the product characteristics and virtually in almost all industries working under adverse operating conditions of temperature and pressure.Digidale Valves are suitable for Coffee, Detergents, Chemicals, Dry foods, Grains, Plastic, Starch, Sugar, Drugs , Flour , etc. These airlock valves have close operating clearances for optimum efficiency and easy access to internal components and have They are designed to control the flow in dry solid metering, discharging, and also in pneumatic conveying systems operating under negative/positive pressure differential. Digidale Rotary Air Lock sizes ranging from 75 mm to 800mm and are available in various material of construction such as SS-316, CI/MS, SS-304, SS-316.L. Rotary Air Lock Valves are available in drop-through, Side entry or blow through design supplied as per customers requirement.

Discharge valves is dependent on the job it is expected to do.Below is a listing of the most common vac system discharge decives with basic criteria for their selection.These valves are used for batch discharging material from a vessel.