• NDP-20BAU Yamada Pumps 855227, NDP-20 Series AODD Pump

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Yamada

NDP-20BAU

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Yamada America NDP-20BAU NDP-20 Series Air Operated Double Diaphragm Pump, Model Number 855227. Aluminum Body, Ultimate Diaphragm, PTFE Balls & O-Rings, Aluminum Air Motor. 3/4" FNPT Inlet & Outlet, 31.7 GPM Flow Rate, Passes up to 1/16" (2mm) Solids.

$2,000.00

Ships within 1 business day (in-stock items). Delivery typically 1–5 business days.

Item: NDP-20BAU | Model #: 855227

NDP-20BAU

Yamada America NDP-20BAU NDP-20 Series Air Operated Double Diaphragm Pump, Model Number 855227. Aluminum Body, Ultimate Diaphragm, PTFE Balls & O-Rings, Aluminum Air Motor. 3/4" FNPT Inlet & Outlet, 31.7 GPM Flow Rate, Passes up to 1/16" (2mm) Solids.

Air Exhaust3/8" Female NPT (includes silencer)
Air Inlet1/4" Female NPT (includes ball valve)
Air Supply Pressure20-100 PSI
Connection TypeFNPT
DiaphragmUltimate (PTFE/EPDM)
Discharge NPT (Inches)3/4"
Discharge Volume Per Cycle0.143 Gallons
Fluid Port3/4"
Liquid Temperature212°F (100°C)
MaterialAluminum
Max Cycles Per Minute195
Maximum Flow (GPM)31.7
Max Suction Lift18'
Model Number855227
Model SeriesNDP-20
MotorAluminum
Solids (Inches)1/16" (2mm)
Suction NPT (Inches)3/4"
Valve BallsPTFE
Valve / Seat / O-RingPTFE O-Rings
Valve TypeBall

NDP-20 Series Information

Features & Benefits
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 (incl. ball valve): 3/8" Female NPT
Air exhaust (incl. silencer): 3/4" Female NPT
ANSI Flange also available—consult Yamada.

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® (TPEE) 248°F (120°C)
Viton® fluoroelastomer 248°F (120°C)

* The maximum liquid temperature for metal and Kynar® fitted pumps is determined by the elastomer (diaphragm material). Polypropylene pumps have a maximum liquid temperature of 180°F (82°C) regardless of diaphragm material.

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Yamada Pumps NDP-20 Pump Manual

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Yamada Pumps NDP-20 PP Pump Manual

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Yamada Pumps NDP-20 Pump Specifications

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NDP-20 Operation Manual

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