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YAMADA NDP-25 Series Pneumatic POLYPROPYLENE (PPG) Ball Valve Diaphram Pump
SKU
NDP-25BPC
Port Dimensions
Intake & Discharge Connection
Polypropylene (PPG): 1" Female NPT
or 1" ANSI Flange B16.5 #150
Kynar (PVDF): 1" Female NPT
or 1" ANSI Flange B16.5 #150
Aluminum (ADC-12): 1" Female NPT
Stainless Steel (316): 1" Female NPT
Cast Iron: 1" Female NPT
Air Inlet
3/8" 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: 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. Kynar pumps have a maximum temperature of 248°F (120°C) when fitted with Hytrel or Viton diaphragms.
Air Supply Pressure (All Models)
20 to 100 PSI (1.4 to 7 kfg/cm)
Discharge Volume Per Cycle
Rubber diaphragm: 0.23 gallons (862 cc)
PTFE diaphragm: 0.17 gallons (654 cc)
Maximum Cycles Per Minute
Rubber diaphragm: 210
PTFE diaphragm: 210
Maximum Size Solid
3/16" (4.8 mm)
Maximum Dry Suction Lift
Rubber-fitted pump capability: 18-feet
Air Motor
Standard: Aluminum
Optional: Epoxy-coated, Teflon-coated, or Electroless Nickel Plate
All Polypropylene, Aluminum, Cast Iron, and SS Hytrel fitted pumps include Buna N check balls & o-rings and Santoprene fitted pumps include EPDM check balls & wetted o-rings. Kynar (PVDF) pumps fitted with Santoprene, Hytrel, or Teflon include Teflon check balls & o-rings. Kynar/EPDM fitted pumps include EPDM check balls & o-rings and Viton fitted include Viton balls & o-rings.
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