Receiver Features to Consider

  • Receiver selection is determined by the flow rate required and the type and bulk density of the material transferred.
  • Large receivers are better than small ones; their increased capacity reduces the number of fill-cycle times, which reduces the wear and tear on pumps and valves. Also, large receivers are better suited for the increased capacity of today’s vacuum pumps.
  • Powder receivers are used for powders (such as PVC) and dusty regrind. These receivers include special filters and blowback systems to avoid clogging and to maintain energy efficiency.
  • Filterless receivers do not require filter cleaning nor filter replacement and Blowback is not required.
  • Machine-mount (JIT) receivers are used on process machines. They are usually equipped with height-adjustable photoelectric level sensors.
  • Stainless steel is the most durable material for most applications.
  • Receivers for operations with abrasive materials require custom options, such as thick-walled wear plates, electro-less nickel plating, and interior ceramic coatings.

(See Delay Abrasive Wear As Long As Possible)

  • Receivers having a tangential inlet with flapper and gasket exhibit minimal material degradation while also eliminating the damaging effects of direct impact on receiver bodies.
  • The discharge valve should allow material to exit the receiver quickly. Larger-diameter discharge outlets are preferred for regrinds or difficult-to-flow materials.
  • Receiver and related connections must be air and leak-tight. Neoprene seals on a dump throat ensure against vacuum loss.
  •  “No-tools access” in receivers makes cleanout and other maintenance easy and fast.

Receivers are designed to operate within the specifications of the conveying system.

That means the receiver must be matched to the line size of the conveying system (tubing diameter and vacuum pump), controller voltage and both the throughput (capacity) and conveying distance. A system may have many vacuum receivers. The limiting factor is the amount of vacuum which - is provided by one or more central vacuum pumps.