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Peter
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Asked: 2023-04-22T00:14:40+05:30 In:

What is the difference between the open-ended and closed-ended rotor of a Rotary Air Lock Valve?

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What is the difference between the open-ended and closed-ended rotor of a Rotary Air Lock Valve?

rotary air lock valve
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    1. Open Ended Rotor Close Ended Rotor
      Construction: Rotor does not contain end plates. The rotor contains shaft and vanes only. Construction: Rotor contains end plates at both ends along with the shaft and the vanes.
      Application: Since there are no end plates, the abrasive material will wear the casing. Hence it is not suitable for handling highly abrasive materials. Application: The end plates protect the casing from abrasion and wear due to the handling of abrasive materials.
      Advantage: Jamming of the rotor is rare due to the absence of end plates in the rotor. Disadvantage: There is a chance for very fine powder particles to get entrapped between end plates and the casing which leads to rotor jamming.
      Solution: The rotor can be saved from jamming by purging the air at the close clearance between the rotor and the casing. Here also rotor can be saved from jamming by purging the air at the close clearance between the rotor and the casing.
      Disadvantage: Bearings and gland ropes are subjected to entrapment of material being handled due to the lack of end plates in the rotor. Advantage: End plates in the rotor protects the bearings and gland packing from the entrapment of the material being handled.

      Figure:- Open Ended Rotor

       

       

      Figure:- Closed End Rotor

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