Yamada 802400-C Spool Assembly

Description:

The Yamada 802400 C Spool Assembly is a pneumatic air distribution component used in air-operated double diaphragm (AODD) pump systems to control the alternating airflow that drives diaphragm movement. It is commonly used in Yamada NDP-20 and NDP-25 series diaphragm pumps where precise air switching is required for continuous pump operation. Maintenance teams, OEMs, and integrators purchase this assembly for replacement of worn spool valves, preventative maintenance, and restoration of proper pump cycling and efficiency.

Applications:

The Yamada 802400 spool assembly is used in industrial fluid handling environments where AODD pumps are required to operate reliably 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 and stable flow output.

Technical Specifications:

• Manufacturer: Yamada Corporation
• Part Number: 802400
• Product Type: C spool assembly / air valve component
• Function: Controls air distribution for diaphragm actuation
• Application: AODD diaphragm pumps (NDP-20 / NDP-25 series)
• Operation: Pneumatic air shifting spool valve
• Installation: Internal air valve section of pump
• Material: Precision-machined metal with seals (model dependent)
• Compatibility: Yamada diaphragm pump systems
• Usage: Pump repair and maintenance replacement part
• Duty Cycle: Continuous operation component
• Status: Active OEM replacement part

Common Replacements:

• Yamada 802401 spool assembly
• Yamada air valve repair kits
• Generic AODD spool valve assemblies