Carolina Material Technologies
Carolina Material Technologies - Bulk Material Handling Solutions
Charlotte, NC 704-846-3737
Rotary Valves

Rotary Valves

Carolina Conveying provides a full range of heavy-duty valves including rotary airlock valves, diverter valves, weigh valves, slide gate valves, iris valves and maintenance gates. In addition CMT provides butterfly, knife gates and orifice gates.

Rotary Airlock Valves & Feeders
Side Entry Rotary Airlock Valves

Rotary Airlock Valves are used to introduce dry materials into a pressure conveying line “locking” the high-pressure (0-25 psig) air below the valve, thereby allowing material to be introduced into the conveying line.

A rotor, 6-12 vanes, delivers product on a continuous basis to the conveying line.   The rotor shaft is supported by two externally located bearings, which is a potential point of product leakage. Rotary Airlock Valves typically run at very slow speeds – 5 to 26 rpm.

Many users have a “dislike” for rotary  airlock valves, as they can be a source of high maintenance or unexpected breakdowns.  Although high pressure, abrasive applications are difficult for any supplier, many problems experienced by users are a result of the wrong features being utilized for an application.  Allow us to help solve your current problem by completely understanding your application and concerns.

Rotary Airlock Valves & Feeders - Standard design used for most pneumatic conveying applications.

Side Entry Rotary Airlock Valves - Design minimizes shearing and is used for non-friable products.

Blow Thru Rotary Airlock Valve
Rotary Valves Quick Clean

        Blow Thru Rotary Airlock Valves For sticky, non-abrasive products.  Low headroom, as convey pickup pan is eliminated

               Quick Clean -            For food & sanitary applications.  Remove rotor without tools.  Optional side rails.

Rotary Airlock Valve Considerations

  • Rotor Type – Open End, Closed End, Open/Closed, Scalloped, Coated, Number of Vanes
  • Rotor Tips – Fixed, Replaceable, AR, Flexible, Bronze, Beveled
  • Bearing Seals – Rope Style, Lip Seal, Air purge
  • Venting – Body Vent, Vent Box, Assisted Venting
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