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Double Flap Valve

Double Flap Valve
Double Flap Valve
Product Code : 11
Product Description

Being a leading manufacturer and supplier of different kinds of construction machines, we bring forth for our clients a wide range of Double Flap Valve that allow flow of dust and maintain airlock across the valve. Manufactured under the stern guidance of our adept professionals,this valve is particularly suitable for handling highly abrasive and gritty materials along with high vacuum across the valve. Available in several designs and technical specifications, this Double Flap Valve can be availed from us at most economical price.

Features:

  • Reliable operation

  • Rugged design

  • Easy to use and maintain

  • Corrosion resistance

Double Flap valves find their application as a substitute of Rotary Airlocks i.e. to allow flow of dust and maintain airlock across the valve. It is particularly suitable for handling  highly abrasive and gritty materials along with high vacuum across the valve. Two small hoppers are mounted in-line and with some space between them in an air-tight casing. Two sets of flaps/ cones seat against the discharge openings of the hoppers. The flaps or cones are held on arms that are fulcrummed on two shafts. The shafts are provided with external counter weights to counter balance the weight of flap or cone, the connecting arms and also the material pressure on top. The counter weight is so selected that the flaps / cones close tightly against the seat rings fitted at the discharge end of the hoppers to avoid leakage. The flap/ cone mounting on the connecting arms self aligning type to make the sealing airtight. For cone dump valve, the seats are sometimes provided with additional rubber rings to ensure leakproofness. The drive mechanism of these valves comprises of a geared motor with cam or linkage that alternately turns the two shafts by some degree. This results in partial lowering of the flap pair or cone at two levels alternately. Thus, as the top flap/cone lowers, material above it drops to fill the intermediate chamber. Now the top flap/cone closes and after some pause the bottom flap/cone opens to allow the material to pass out of the valve. The above mechanism ensures that any one flap/cone remains closed at any point of time thereby ensuring airlock across the valve.

MANUFACTURING RANGE

  • Capacity: Upto 50 TPH

  • Size: Upto 800 x 1250

  • Height: 600 - 2000

  • Type:

    • Single Cone Double Deck

    • Double Flap Double Deck

    • Single Flap Double Deck

  • Operating Mechanism:

    • Gravity operated

    • Motorised cam operated

    • Pneumatically operated

Material of Construction

  • Body: IS:2062

  • Liner: Sailma/ SS

  • Shaft: EN-8 / EN-19/ EN-24

  • Cone: Ni-hard/CI

  • Flap: IS-2062 with liner


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