• Yamada Pump NDP-20BSV
  • Yamada Pumps NDP-20 Series Performance Curves

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Yamada

NDP-20BSV

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Yamada Pumps NDP-20BSV Type, Model 851522 NDP-20 Series, Air Operated Double Diaphragm Pump, Viton Diaphragm, Viton Flat Check Valve / O-Rings, Stainless Steel (316) Material, 31.7 GPM Max Flow, 3/4" NPT Fluid Port, 3/8" Female NPT (includes ball valve) Air Inlet, 3/4" Female NPT (includes silencer) Air Exhaust, Aluminum Air Motor, 18 Feet Max Suction Lift

$1,216.60

Item: NDP-20BSV | Model #: 851522
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NDP-20BSV

Yamada Pumps NDP-20BSV Type, Model 851522 NDP-20 Series, Air Operated Double Diaphragm Pump, Viton Diaphragm, Viton Flat Check Valve / O-Rings, Stainless Steel (316) Material, 31.7 GPM Max Flow, 3/4" NPT Fluid Port, 3/8" Female NPT (includes ball valve) Air Inlet, 3/4" Female NPT (includes silencer) Air Exhaust, Aluminum Air Motor, 18 Feet Max Suction Lift

Actual Weight33
Air Exhaust3/4" Female NPT (includes silencer)
Air Inlet3/8" Female NPT (includes ball valve)
Air Supply Pressure20 to 100 PSI (1.4 to 7 kgf/cm²)
DiaphragmViton
Discharge Volume Per Cycle0.163 gallons (615 cc)
Fluid Port3/4" NPT
Liquid Temperature248°F (120°C)
MaterialStainless Steel (316)
Max Cycles Per Minute195
Maximum Flow (GPM)31.7 GPM
Max Suction Lift18 Feet
Model Number851522
Model SeriesNDP-20
MotorAluminum Air Motor
Solids (Inches)1/16" (2.0 mm)
Type851522
Valve / Seat / O-RingViton

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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NDP-20 Series

Yamada Pumps NDP-20 Pump Manual

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NDP-20 Series

Yamada Pumps NDP-20 PP Pump Manual

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NDP-20 Series

Yamada Pumps NDP-20 Pump Specifications

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NDP-20 Series

Yamada Pumps NDP-20BSV Repair Parts

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Repair Parts for NDP-20BSV

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