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  • Home
  • Pumps
  • AODD-Air Operated Diaphragm
  • Yamada NDP-50BAS Air Operated Double Diaphragm Pump - 2" Flange/NPT |Aluminum Body |Santoprene Diaphragms - 852717
  • Yamada AODD Pump NDP 50 metal flg
  • Yamada aodd ndp 50Rubber Performance curve.jpg
  • Yamada AODD Pump NDP 50 metal flg Yamada aodd ndp 50Rubber Performance curve.jpg

    Yamada NDP-50BAS Air Operated Double Diaphragm Pump - 2" Flange/NPT |Aluminum Body |Santoprene Diaphragms - 852717

    Yamada Pumps

    Manufacturer Price: $1,830.00
    Sale Price: $1,464.00
    (You save $366.00 )
    WE BEAT COMPETITOR'S PRICES
    (No reviews yet) Write a Review
    Availability:
    LEAVES WAREHOUSE IN 7-10 BUSINESS DAYS. EXPEDITES BELOW.
    ->:

    Yamada $175 Factory Expedite

    Port Size:
    2" Flange/NPT
    Body Material:
    Aluminum
    Diaphragm Material:
    Santoprene
    Max Flow Rate:
    164 GPM
    Max Pressure:
    100 PSI
    Series:
    NDP-50

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    Product Description

    NDP-50 series 2" AODD pumps provide a Max Flow Rate of 164 GPM and are available in Aluminum, Stainless steel (316), Kynar (PVDF), Cast Iron, and Polypropylene.

    NDP-50 SPECIFICATIONS

    Fluid Port  2" NPT
    GPM 164
    Discharge Volume Per Cycle

    Rubber 1.12 Gallons

    PTFE 0.69 Gallons

    Air Motor

    Metal Pump - Aluminum

    Plastic Pump - Non-Metallic

    Intake & Discharge Connections  
    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
    Cast Iron 2" Female NPT
    Air Inlet 3/4" Female NPT (includes ball valve)
    Air Exhaust 1" Female NPT (includes silencer)

     

     

    Engineered for High Performance and Long Life.

    Rugged, Bolted Construction

    All Yamada pumps feature bolted construction, which eliminates leaks and simplifies post-maintenance reassembly. Bolted construction is superior to clamp band retainers, which frequently require frustrating, unnecessary leakage rebuilds from misalignment during reassembly.

    Outside-Accessible Air Valve

    Inspection or maintenance of every Yamada air valve may be performed without removing the pump from service. Outside accessible, making it easy to fix and inspect.

    Unified Air Valve Concept

    Common-size air valve assemblies reduce parts confusion and inventory.

    Pilot Valve

    Unique to the Yamada design is an individual modular pilot valve that actuates the air valve. It is depressed slightly by the inner center disk creating a pressure drop at one end of the air valve, allowing shifting to occur. It is maintenance free with no cumbersome snap rings or lubricated dynamic o-rings to replace or repair.

    What separates Yamada from the rest of the pack is the air valve technology. Yamada air valve technology is the heart of the air-powered double diaphragm pump and determines reliability.  Yamada NDP series pumps use a completely non-lubricated main air valve and independent pilot mechanisms to control the air logic, called a C-spool ensures stall-free operation throughout product life. 

    Yamada holds three patents on its field proven valve and enjoys a superior reputation throughout the industry.

    How Yamada AODD Pump Air Valve C-Spool Works

    1. As compressed air enters the pump, it is directed via the main air valve to one side or the other, depending upon the starting position of the c-spool.
    2. As the air enters the chamber, it forces the diaphragm outward.
    3. This outward momentum forces liquid out of the discharge ball valve and loads the opposite inlet ball valve.
    4. As the diaphragm travels outward, the connected diaphragm on the opposite side is pulling the diaphragm inward.
    5. When it travels a full stroke, it will contact the pilot valve, depressing it and breaking the seal to open an exhaust port.
    6. The open port allows the compressed air to the exhaust from the back side of the air valve. The pressure drop produces a shift of the main air valve.
    7. This motion simply repeats on the other side.

    Other Details

    Bill of Materials: Download

    Data Sheets: Download

    Yamada Catalog: Download Full Yamada Catalog

    Yamada's One-Year Limited Warranty

    Yamada air operated diaphragm pump series are warranted by YAMADA to the original user against defects in workmanship or materials under normal use for one year from date of purchase.  Download Warranty PDF here.

    Product Videos

    Custom Field

    ->

    Yamada $175 Factory Expedite

    Port Size 2" Flange/NPT
    Body Material Aluminum
    Diaphragm Material Santoprene
    Max Flow Rate 164 GPM
    Max Pressure 100 PSI
    Series NDP-50

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    Yamada AODD Pump NDP 50 metal flg
    Yamada Pumps
    Yamada NDP-50BAS Air Operated Double Diaphragm Pump - 2" Flange/NPT |Aluminum Body |Santoprene Diaphragms - 852717

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