Yamada PDJ-20FN Pulsation Dampener

Description:

The Yamada PDJ-20FN Pulsation Dampener is used in fluid handling systems to reduce pressure fluctuations and stabilize flow in diaphragm pump operations. Commonly installed in chemical transfer lines, dosing systems, coating processes, and industrial piping networks paired with AODD pumps. Maintenance teams and system integrators use this dampener for system protection, improved flow consistency, retrofit installations, and extending pump and piping life.

Applications:

The Yamada PDJ-20FN is used in industrial environments where diaphragm pumps create pulsation that can affect system performance and equipment longevity. It is commonly applied in chemical processing, coatings and ink systems, water treatment facilities, and fluid transfer operations where smooth, steady flow is required to protect instrumentation, valves, and downstream processes.

Technical Specifications:

• Manufacturer: Yamada
• Model / Part Number: PDJ-20FN
• Product Type: Pulsation Dampener
• Port Size: 3/4 inch
• Body Material: Aluminum (application dependent)
• Diaphragm Material: Nitrile (NBR)
• Max Operating Pressure: 100 PSI (7 bar)
• Max Temperature: Up to 80°C (fluid dependent)
• Connection Type: NPT threaded
• Function: Reduces pulsation and stabilizes discharge flow
• Compatible Pumps: AODD pumps (e.g., Yamada NDP series)
• Installation: Discharge side of pump
• Operation: Air or fluid charged chamber

Common Replacements:

• Yamada AD-20ST
• Yamada AD-20FN
• Wilden 04-3180 Pulsation Dampener