Designed for normal to heavy industrial service, the Heavy-Duty Aerolock will perform at up to 15 PSI pressure differential. The round or square inlet/outlet configurations allow maximum product flow while maintaining an optimum air seal.

The Plastics Industry orders our Heavy-Duty Standard 2 configuration, which includes a relieved tip rotor and T-3 seals. Most plastics tend to smear on the housing, which can cause a normal rotor to bind up; this problem can often be eliminated by using relieved tips.

Construction Features

• Gaskets
  The gaskets provide a positive seal between Aerolock flanges and components directly above and below. They are made of 1/4-inch thick white neoprene and are comprised of sections that interlock to ensure they stay in place and provide an airtight seal.
• Bearings - thrust end
  The radial-thrust, tapered roller bearing assembly is preloaded to provide minimum rotor deflection. This results in close rotor clearance to maximize wear life.
• Bearings - drive end
  The radial ball bearing assembly provides firm shaft support on the drive end and allows expansion and contraction due to temperature changes along the longitudinal axis.
• Seals
  • T-3 seal
    The general purpose T-3 seal is used on both ends of the rotor shaft. The assembly is comprised of a Teflon® collar anchored to the shaft and two steel-cased quad ring seals which fit over the Teflon® collar. The seals remain stationary while the Teflon® collar rotates with the shaft. The Teflon’s® slick surface allows quad rings to operate in dry mode with good service life.
  • Lip seal
    The double lip seal without the Teflon® collar is also available and provides an inexpensive seal for nonabrasive materials. Two steel-cased rubber seals envelope the shaft at both ends.
  • Air purge seals
    The air purge seal is available for severe service applications. Plant air is introduced through end plates and the air diffuser ring. This provides a zone of higher pressure outside the seals than inside the Aerolock. The seal cavity is swept clean toward the inside of the Aerolock, protecting the outboard bearings.
• Housing and endplates
  The housing and end plates are machined from castings and are made of wear iron, chrome-plated wear iron, or stainless steel. They have round or square flanges, and the shear action inlet reduces stress on housing and rotor.
• Rotors
  The eight-blade, open end rotor maintains a minimum two-blade labyrinth seal to minimize air leakage. Relieved tips reduce rotor drag on materials that tend to build up on housing, and the design reduces pressure points that cause extrusion of materials molded or shaped by pressure. Rotors can be equipped with flat tips for use with cereal products or relieved tips for materials that would normally form skins or thin sheets between the end plates and hub area. Materials of construction include steel and stainless steel.

For more information, contact Premier.

Performance Specifications

Aerolock Drive Information

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Heavy-Duty Airlock Spec Sheet

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