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Discharge Muffler 311-32 | 2 1/8” ID Connection | 3600 kPa SWP | Anti-Corrosion Finish | by Aspen Pumps

SKU: 311-32
$580.00 List price: $702.10
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The Discharge Muffler 311-32 is designed for industrial refrigeration systems, featuring a 2 1/8” ID connection and a safe working pressure of 3600 kPa. Built to ISO/AS 5149.2 standards, it minimizes pressure drop for improved plant efficiency while utilizing harmonic wave cut principles to reduce noise. Ideal for professionals seeking reliable noise reduction and compliance in pressure vessel applications.

Product Name/Title: Discharge Muffler 311-32 | 2 1/8” ID Connection | 3600 kPa SWP | Anti-Corrosion Finish | by Aspen Pumps

Brand: Aspen Pumps

SKU: 311-32

Alternatively Known As: Discharge Muffler 311-32, Harmonic Attenuator, Pressure Vessel Muffler

Technical Specifications
  • Connection Size: 2 1/8” ID
  • Lay in Diameter: 546 mm
  • Safe Working Pressure (SWP): 3600 kPa
  • Manufactured to ISO/AS 5149.2 standards
  • Anti-corrosion powder coat finish
  • Solid copper connections
  • Oil drain channels to prevent oil logging
  • Dimensions (H x L x W): 300mm x 600mm x 546mm
  • Weight: 15 kg
Key Features
  • Connection: 2 1/8” ID with lay in diameter of 546mm
  • Safe Working Pressure (SWP): 3600 kPa
  • Manufactured in accordance with ISO/AS 5149.2
  • Minimal pressure drop to improve plant efficiency
  • SKY safety socket fitted to PRV sockets to prevent refrigerant leakage
  • Anti-corrosion powder coat finish with solid copper connections
  • Utilizes harmonic wave cut principles to reduce noise and smooth discharge pulse
  • Oil drain channels to prevent oil logging
  • Receivers with rotalock connection not supplied with valves
  • Large vertical receivers include liquid level switch port
  • Compatible with 1 1/4 rotalock sightglass with adaptor 412-202020
Professional Installation Requirements
  • Installation should be performed by qualified professionals familiar with pressure vessel and refrigeration system standards to ensure safety and compliance.
Applications
  • Industrial refrigeration systems
  • Pressure vessel discharge noise reduction
  • Harmonic attenuation in pump discharge lines
Standards & Compliance
  • Complies with AS/NZS 5149.2 for refrigeration systems and pressure vessels
Environmental Benefits
  • Reduces noise pollution in industrial environments
  • Improves plant efficiency by minimizing pressure drop
  • Prevents refrigerant leakage with safety socket design
Warranty Information

Standard manufacturer warranty applies; please refer to Aspen Pumps for specific warranty details.

Available Now

The Aspen Pumps Discharge Muffler 311-32 is available for immediate purchase, ideal for industrial refrigeration and pressure vessel applications.