Yamada NDP-25 Series
NDP-25 Polypropylene ANSI Flange
49.0 GPM Maximum Flow Rate
Compatible fluid connections:
1.0" fluid port
Yamada® NDP-20 series Air Powered Double Diaphragm (AODD) pumps provide a maximum flow rate of 28 gallons per minute. Yamada NDP 25 pumps are available in aluminum, stainless steel (316), and polypropylene construction, with a wide variety of diaphragm materials.
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Intake & Discharge Connections:
Polypropylene (PPG): 3/4" Female NPT or 3/4" ANSI Flange B16.5 #150
Aluminum (ADC-12): 3/4" Female NPT
Stainless Steel (316): 3/4" Female NPT -
Air Inlet:
3/8" Female NPT (includes ball valve)
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Air Exhaust:
3/4" Female NPT (includes silencer)
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Air Supply Pressure (All Models) :
20 to 100 PSI (1.4 to 7 kgf/cm²)
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Discharge Volume Per Cycle:
Rubber diaphragm: 0.163 gallons (615 cc)
PTFE diaphragm: 0.143 gallons (539 cc) -
Maximum Cycles Per Minute:
Rubber diaphragm: 195
PTFE diaphragm: 195 -
Maximum Size Solid:
1/16" (2.0 mm)
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Maximum Dry Suction Lift:
Rubber-fitted pump capability: 18-feet
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Air Motor:
Standard: Aluminum
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Optional Coating:
PTFE-coated
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Notes:
Hytrel® fitted pumps include Hytrel® check balls and Buna N wetted o‑rings. Santoprene® fitted pumps include Santoprene® check balls and EPDM wetted o‑rings.
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Maximum Liquid Temperature*:
Diaphragm Material / Temperature
Buna N: 180°F (82°C)
Neoprene: 180°F (82°C)
Santoprene® (TPO) 180°F (82°C)
EPDM: 212°F (100°C)
PTFE 212°F (100°C)
Hytrel® (TPE) 248°F (120°C)
Viton® fluoroelastomer 248°F (120°C)
*Polypropylene pumps have a maximum liquid temperature of 180°F (82°C) regardless of diaphragm material. -
Weight and Dimensions:
Aluminum
Polypropylene
Dimensions: 9.80" W x 12.60" H
Net Weight: 19.8 lbs. (9.0 kg)
Shipping Weight: 23 lbs.
Dimensions (ANSI flange): 12.44" W x 14.75" H
Net Weight: 17.6 lbs. (8.2 kg)
Shipping Weight: 22.6 lbs. Dimensions (NPT): 12.44" W x 14.50" H
Net Weight: 17.6 lbs. (8.2 kg)
Shipping Weight: 22.6 lbs.Stainless Steel
Dimensions: 9.80" W x 12.60" H
Net Weight: 30.8 lbs. (13.9 kg)
Shipping Weight: 32 lbs.