Yamada 2″ Polypropylene Santoprene-Fitted Air-Operated Diaphragm Pump


Manufacturer Part Number:


Average Lead Time:

10-12 Business Days

Port Size:

2 in (50.8 mm)

Construction Material:


Check Valve Type:

2″ (NPT or ANSI Flange)

Porting Type:

2″ (NPT or ANSI Flange)

Diaphragm Material:


Check Valve Material:


O-Ring Material:



97 lbs (44 kg)

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Yamada® NDP-50BPS-PP: Robust and Efficient Diaphragm Pump
Experience unparalleled efficiency and reliability with the Yamada® NDP-50BPS-PP Air-Operated Double Diaphragm Pump. As a prominent member of the esteemed NDP-50-PP Series, this pump excels in managing demanding fluid transfer tasks with ease.

Outstanding Features for High Performance:
  • Santoprene Strength: This pump includes a Santoprene diaphragm and check valves. It provides outstanding durability and consistent performance, ideal for extensive use.
  • Chemical Resistance: Featuring a construction of glass-filled polypropylene, the pump boasts superior corrosion resistance. This quality extends its lifespan even in harsh chemical environments.
  • High Capacity Flow: It can achieve a maximum flow rate of 110 gallons per minute. The pump features a 2-inch fluid port in NPT or ANSI Flange styles, optimizing process efficiency.
  • Operational Control: The pump includes a 3/4″ female NPT with a ball valve for precise air management. A 1″ female NPT with a silencer ensures quiet operation, enhancing the workplace environment.
  • Temperature and Volume Handling: Capable of managing liquid temperatures up to 180°F (82°C) and delivering 1.14 gallons per cycle, this pump adapts to various applications effortlessly.

Technical Specifications:
  • Port Size: 2 inches (50.8 mm) for broad compatibility.
  • Material: Durable polypropylene, perfect for resisting chemicals and corrosion.
  • Diaphragm and Seals: Composed of Santoprene and EPDM, these materials offer flexibility and excellent chemical compatibility.
  • Max Cycles Per Minute: 146, ensuring efficient and reliable fluid transfer.

This pump is the ideal choice for industries that demand dependable, long-lasting equipment. From chemical processing to wastewater treatment, the Yamada NDP-50BPS-PP provides a superior solution for handling complex fluid dynamics with precision and durability.
  • Port Size: 2 in (50.8 mm)
  • Construction Material: Polypropylene
  • Check Valve Type: Ball
  • Porting Type: 2″ (NPT or ANSI Flange)
  • Diaphragm Material: Santoprene
  • Check Valve Material: Santoprene
  • O-rings Material: EPDM
Regular shipments will be sent generally within 4-7 days of placing the order, though some products may vary due to lead times from the manufacturer. All products over 100 pounds will be shipped by a common carrier (LTL) & will be palletised. All buyers are responsible for proper unloading at their desired shipping address and agree to have the necessary equipment on site to unload the product(s). For more information, please read our Shipping, Returns & Tax Policy.

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