Yamada 802809 Air Valve Assembly For AODD Pumps

Description:

The Yamada 802809 is an air valve assembly used in air-operated double diaphragm (AODD) pump systems to control and distribute compressed air for diaphragm actuation. It is commonly used in Yamada NDP-20 and NDP-25 series pumps where precise air switching is required for continuous fluid transfer operation. Maintenance teams, OEMs, and integrators purchase this assembly for replacement of worn air valve components, preventative maintenance, and restoration of proper pump cycling and efficiency.

Applications:

The Yamada 802809 air valve assembly is used in industrial fluid handling environments where AODD pumps operate under continuous duty. It is commonly deployed in chemical processing, wastewater treatment, coatings, and fluid transfer systems where controlled air distribution ensures consistent diaphragm movement, stable flow output, and reduced system downtime.

Technical Specifications:

• Manufacturer: Yamada Corporation
• Part Number: 802809
• Product Type: Air valve assembly
• Function: Controls pneumatic air distribution for diaphragm actuation
• Application: AODD diaphragm pumps (NDP-20 / NDP-25 series)
• Operation: Pneumatic air shifting valve system
• Components Included: Valve body, spool assembly, seals, gaskets, internal hardware
• Installation: Internal air valve section of pump
• Material: Polypropylene (PP) or aluminum variants available
• Role in System: Drives alternating diaphragm motion for fluid pumping
• Compatibility: Yamada diaphragm pump systems
• Duty Cycle: Continuous operation component
• Status: Active OEM replacement part

Common Replacements:

• Yamada 804608 air valve assembly
• Yamada 802362 air valve assembly
• Yamada air valve repair kits