Yamada's air-powered double diaphragm (AODD) pumps feature a unique, patented air-valve design that ensures stall-free operation throughout product life.

PRODUCT

Yamada NDP-20

(Air Operated Double Diaphragm AODD pump)

This compact light-weight submersible pump from Yamada is a very popular model and can be used in a variety of applications and often inside process machines. The NDP-20 has very competitive performance and a host of value-added features such as self-priming, dead-head operation, and more. Bolted construction and common component replaceable parts maximise uptime and increase profitability.
Manufactured by: Yamada Corporation, Japan

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Technical Details

Size range: 3/4"
Material of construction (with options): body - polypropylene/aluminum/stainless steel; diaphragm - neoprene/buna N/nordel/santoprene/teflon/viton/hytrel
Pressure range: 7 bar (maximum)
Flow range: 28 l/min
Head range: 70 m (maximum)

Applications

Chemical transfer, blending, and filling, solvent cleaning, dewatering, loading and unloading of chemicals
AODD pumps with ex-air valves and YSC-3 controller can be used for metering and batch control applications
Ideal for CIP applications in dairy, food and beverages, brewing, pharmaceuticals, and cosmetics industries

Key Features

Self priming; can run dry
Can have variable flow rates and discharge pressure
Can operate at dead head
Diaphragm can be submerged in the liquid
Are shear sensitive
Explosion-proof
Leak-free, sealless construction
Varied materials of construction (Al, SS, CI, PVDF, PTFE, POM, PP)

Easily maintained and inexpensive to operate
Operated by compressed air (no electric motor) and is intrinsically safe
Can handle corrosive chemicals and highly viscous liquids
Ensures adequate flow (max. flow) and pressure (max. head) as per application requirements