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YAMADA NDP-50 Series Pneumatic KYNAR (PVDE) Ball Valve Diaphram Pump
SKU
NDP-50BVE
Port Dimensions
Intake & Discharge Connection
Polypropylene (PPG): 2" ANSI Flange B16.5 #150
Kynar (PVDF): 2" ANSI Flange B16.5 #150
Aluminum (ADC-12): 2" ANSI Flange B16.5 #150 (with tapped 2" Female NPT)
Stainless Steel (316): 2" ANSI Flange B16.5 #150 or 2" Female NPT
Hastelloy C: 2" ANSI Flange B16.5 #150 or
2" Female NPT
Cast Iron: 2" Female NPT
Air Inlet
3/4" Female NPT (includes ball valve)
Air Exhaust
1" 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. 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: 1.14 gallons (4.3 liters)
PTFE diaphragm: 0.55 gallons (2.1 liters)
Maximum Cycles Per Minute
Rubber diaphragm: 146
PTFE diaphragm: 220
Maximum Size Solid
5/16" (8 mm)
Maximum Dry Suction Lift
Rubber-fitted pump capability: 19-feet
Air Motor
Standard: Aluminum
Optional: Epoxy-coated, Teflon-coated, or Electroless Nickel Plate
All Polypropylene, Aluminum, Cast Iron, Hastelloy C, 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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