Emerson Alco 056989 Dampener/Muffler

The Emerson Alco 056989, also known as the APD309S Pulsation Dampener, is a critical component engineered for industrial refrigeration and commercial HVAC systems. Designed specifically for the discharge line of compressors, this 30 cubic inch refrigeration muffler effectively neutralizes gas pulsations and minimizes vibration that can lead to mechanical failure or excessive system noise. With a 1 1/8" ODF sweat connection and a 680 PSI maximum working pressure, it is optimized for high-capacity applications, common in systems exceeding 35 tons.

Constructed with a rugged steel shell and corrosion-resistant epoxy powder coating, the Emerson APD309S ensures long-term reliability in demanding environments. Its internal baffle configuration is precisely tuned to reduce acoustic energy without creating significant pressure drop, maintaining peak performance in HVAC compressor discharge lines. For technicians managing large-scale refrigerant piping, this dampener is a standard for protecting delicate instrumentation and preventing downstream piping fatigue.

• Noise and Vibration Reduction: Effectively dampens high-frequency gas pulsations in the compressor discharge line.
• High Pressure Capability: Rated for a 680 PSIG maximum working pressure, suitable for modern high-pressure refrigerants.
• Durable Construction: Features solid copper ODF connections and a shock-resistant steel shell for industrial-grade durability.
• Full Flow Design: Engineered to provide maximum pulsation control with minimal refrigerant flow restriction.

• What is the primary application for the APD309S? It is installed in the discharge line of HVACR compressors to eliminate vibration and reduce noise caused by gas pulses.
• Does the 680 PSI rating support R-410A systems? Yes, the 680 PSI maximum working pressure is designed to accommodate the high-pressure requirements of R-410A and other common refrigerants.
• What connection type does this model use? This unit features 1-1/8 inch ODF (Over Double Female) connections, commonly referred to as sweat or solder connections.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.