Powder Pumps

Yamada® Diaphragm Powder Pumps

Yamada Powder Pumps were specifically designed to move bulk solids more effectively throughout your process. They are a cost effective replacement for Augers and Conveyors and eliminate unsafe and labor intensive means of moving bulk powders. These heavy duty pumps consistently transfer fine-grained (100um or finer), low bulk density (5 to 50 lbs. / cubic foot), dry powders in a dust-free operation.

Principles of Operation

  • Conveying distance depends upon the micron size and the bulk density of the powder. For example fumed silica can be conveyed 150 feet while flour a maximum of 40 feet. Refer to the Yamada “Pumpable Powders” data sheet for specific materials.
  • Powder must be 150 mesh (106 micron) or smaller size particle / powder and dry. The Pump will not pump crystals or flakes and the bulk density should be less than 50lbs / cubic feet. The higher the bulk density, the shorter the conveying distance and the lower the flow rate.
  • The Pump can be located a maximum of 15 feet above powder source.
  • Yamada recommends aeration / fluidization of the powder a minimum of 10 to 15 seconds prior to starting the pump- premature diaphragm, center shaft, and center disk failure can be avoided.
  • PTFE check balls are recommend for sticky powders.
  • Yamada recommends regulating compressed air to 70PSI Maximum.
  • Air volume requirements & capacity

NDP-40 (1-1/2” port): = 15 to 90 SCFM.

Maximum flow rate: 144 cubic feet/hr,

2.4 cubic ft/minute

NDP-50 (2” port): = 20 to 105 SCFM.

Maximum flow rate: 210 cubic feet/hr,

3.5 cubic ft/minute

NDP-80 (3” port): = 30 to 120 SCFM.

Maximum flow rate: 420 cubic feet/hr,

7.0 cubic ft/minute


Activated Carbon Dust
Acrylic Resins Pearlite
Aluminum Oxide Pesticides
Bentonite Pharmaceuticals
Carbon Black Pigments
Cereal Flours Powder Coatings
Clay Powder Powdered Plastics
Diatomaceous Earth Powdered Rock
Expanded Mica Quartz Powder
Fire extinguishing Powder Salicylic Acid
Fumed Silica Silicones
Ground Limestone Starch
Kaolin Talc
Micro Dolomite Filter Toners
And many more..

General Pump Information

Port Sizes 1-1/2", 2", or 3"
Construction Aluminum, Cast Iron, or Stainless Steel
Availability Three pump series are offered, dependent upon requirements

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