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Yamada NDP-40 Series Pumps

116 USGPM - 1-1/2" Port Size

    Port Dimensions

    Intake & Discharge Connection
  • Polypropylene (PPG) 1-1/2" ANSI B16.5 #150
  • Aluminum (ADC-12) 1-1/2" ANSI B16.5 #150 (with tapped 1-1/2" Female NPT)
  • Stainless Steel (316) 1-1/2" ANSI B16.5 #150 or 1-1/2" Female NPT
  • Hastelloy 1-1/2" ANSI B16.5 #150 or 1-1/2" Female NPT
  • Cast Iron 1-1/2" Female NPT
    • Air Inlet
  • 1/2" Female NPT (includes ball valve)
    • Air Exhaust
  • 3/4" Female NPT (includes silencer)

    • 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 212°F (100°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: 0.79 gallons (3.0 liters)
  • PTFE diaphragm: 0.37 gallons (1.4 liters)

    • Maximum Cycles Per Minute

  • Rubber diaphragm: 148
  • PTFE diaphragm: 270

    • Maximum Size Solid

  • 9/32" (7 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