• NDP-25BFU Yamada NDP-25 Series AODD Diaphragm Pump 851536-U

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Yamada

NDP-25BFU

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Yamada NDP-25BFU NDP-25 Series Air Operated Double Diaphragm Pump, Model 851536-U. Cast Iron Body with Ball Valve, Ultimate PTFE/EPDM Diaphragm & Ball Materials, PTFE O-Rings. 1" NPT Inlet & Outlet, Repair Kit K25-MU-1 Available.

$2,875.00

Item: NDP-25BFU | Model #: 851536-U

NDP-25BFU

Yamada NDP-25BFU NDP-25 Series Air Operated Double Diaphragm Pump, Model 851536-U. Cast Iron Body with Ball Valve, Ultimate PTFE/EPDM Diaphragm & Ball Materials, PTFE O-Rings. 1" NPT Inlet & Outlet, Repair Kit K25-MU-1 Available.

Air Inlet3/8" FNPT
Air Supply Pressure20 - 100 PSI (1.4 - 7 kfg/cm)
DiaphragmUltimate PTFE/EPDM
Discharge NPT (Inches)1" NPT
Discharge Volume Per Cycle0.21 gallons (787 cc)
Fluid Port1"
MaterialCast Iron
Maximum Flow (GPM)46.2
Max Suction Lift18'
Model Number851536-U
MotorAluminum
Solids (Inches)3/16"
Suction NPT (Inches)1" NPT
TypeBall Valve
Valve BallsUltimate PTFE/EPDM
Valve / Seat / O-RingPTFE

NDP-25 Series Information

Features & Benefits
Port Dimensions
Intake & discharge connection:
Polypropylene (PPG) 1" Female NPT
Kynar® (PVDF) 1" Female NPT
Aluminum (ADC-12) 1" Female NPT
Stainless Steel (316) 1" Female NPT
Cast Iron 1" 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.
Notes
All Polypropylene, Aluminum, Cast Iron, and SS 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. Kynar® (PVDF) pumps fitted with Santoprene®, Hytrel®, or PTFE include PTFE check balls and o‑rings. Kynar®/EPDM fitted pumps include EPDM check balls and o‑rings. Viton® fitted pumps include Viton® check balls and o‑rings. Aluminum, Stainless Steel and Cast Iron pumps with a serial number prior to 487505 will require a kit without a "-1".

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Yamada Pumps NDP-25 Pump Manual

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Yamada Pumps NDP-25 PP Pump Manual

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Yamada Pumps NDP-25 Pump Specifications

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NDP-25 Operation Manual

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NDP-25BFU Ultimate Diaphragm Series Repair Parts

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Repair Parts for NDP-25BFU

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