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Yamada NDP-20 Series Pumps

28 USGPM - 3/4" Port Size

    Port Dimensions

    Intake & Discharge Connection

  • Polypropylene (PPG) 3/4" Female NPT
  • Aluminum (ADC-12) 3/4" Female NPT
  • Stainless Steel (316) 3/4" Female NPT

    • Air Inlet

  • 1/4" Female NPT (includes ball valve)

    • Air Exhaust

  • 3/4" Female NPT (includes silencer)
  • ANSI Flange also available. Consult Yamada.
    • Maximum Liquid Temperature*

    Diaphragm Material / Temperature

  • Neoprene: 180°F (82°C)
  • Buna N: 180°F (82°C)
  • EPDM: 212°F (100°C)
  • Hytrel: 248°F (120°C)
  • Santoprene: 225°F (107°C)
  • Viton: 248°F (120°C)
  • Teflon: (PTFE) 212°F (100°C)

    • *Polypropylene pumps have a maximum liquid temperature of 180°F (82°C) regardless of diaphragm material.

    Air Supply Pressure (All Models)
  • 20 to 100 PSI (1.4 to 7 kfg/cm)
    • Discharge Volume Per Cycle
  • Rubber diaphragm: 0.14 gallons (490 cc)
  • PTFE diaphragm: 0.10 gallons (290 cc)
    • Maximum Cycles Per Minute
  • Rubber diaphragm: 195
  • PTFE diaphragm: 195
    • Maximum Size Solid
  • 1/16" (2.0 mm)
    • Maximum Dry Suction Lift
  • Rubber-fitted pump capability: 18-feet
    • Air Motor
  • Standard: Aluminum
  • Optional: Epoxy-coated, Teflon-coated, or Electroless Nickel Plate

    • Notes: Hytrel-fitted pumps include Buna N check balls & wetted o-rings. Santoprene-fitted pumps include EPDM check balls & wetted o-rings.

     

Click Here for the NDP20 & NDP25 Maintenance Manual