Yamada 804880 Center Body Assembly for NDP-20 and NDP-25 Series Pumps

Description:

The Yamada 804880 is a center body assembly used in air-operated double diaphragm (AODD) pump systems to house internal air chambers, pilot valves, and flow control components. It is commonly used in Yamada NDP-20 and NDP-25 series pumps where it forms the core structural and functional section of the pump body. Maintenance teams, OEMs, and integrators purchase this assembly for replacement of damaged housings, major rebuilds, and restoration of full pump operation and efficiency.

Applications:

The Yamada 804880 center body assembly is used in industrial fluid handling environments where AODD pumps are required for continuous duty. It is commonly deployed in chemical processing, wastewater treatment, coatings, and fluid transfer systems where the center body integrates air distribution and fluid control components to maintain consistent pump cycling and performance.

Technical Specifications:

• Manufacturer: Yamada Corporation
• Part Number: 804880
• Product Type: Center body assembly
• Function: Houses air chambers, pilot valves, and internal flow components
• Application: AODD diaphragm pumps (NDP-20 / NDP-25 series)
• Construction: Metal or polypropylene body (variant dependent)
• Key Components: Air chamber, pilot valve assembly, seals, bearings
• Installation: Central structural component of pump assembly
• System Role: Integrates air distribution and diaphragm actuation
• Compatibility: Yamada diaphragm pump systems
• Duty Cycle: Continuous operation
• Status: Active OEM replacement part

Common Replacements:

• Yamada 804881
• Yamada 804647
• Yamada 804879