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Expansion Chambers

Equalizer Expansion Chambers are designed to prevent pressure increases in closed systems. A rolling diaphragm provides a variable volume that, when properly sized, maintains oil-housing pressure at or near zero PSI. The reduced pressure will extend seal life and help prevent leakage. Expansion chambers also protect the integrity of closed systems by preventing the exchange of air from the chamber to the surrounding atmosphere. A choice of thread sizes and capacities offers flexibility to the user.

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Additional Features

Corrosion Resistance
Made from corrosion-resistant stainless steel
Protects Equipment
Controls housing pressure to extend seal life
Contamination Exclusion
Prevents contamination ingression to help lubricants stay cleaner for longer life and improved performance
Maintenance Free
Installs quickly with no additional maintenance thereafter

Other Specs

Model Description Connection (NPT) Capacity Dim A (in)
31815 Expansion Chamber 3/8 25 cu in 7/8
31816 Expansion Chamber 1/2 25 cu in 1
31817 Expansion Chamber 3/4 25 cu in 1-1/4
31835 Expansion Chamber with Vent Hole 1/2 25 cu in 1

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Beyond Pressure: Comprehensive Equipment Health Monitoring

Enhancing Expansion Chamber Capabilities

Integrating Machine VitalsTM, part of the Sensei® IIoT Network, with your Expansion Chamber, you gain invaluable insights into its operation, particularly in managing pressure changes effectively. Machine Vitals goes beyond just pressure monitoring; it also tracks relative humidity, temperature variations, and other key parameters, providing a comprehensive overview of your equipment's condition. This enriched data stream not only ensures the Expansion Chamber is performing at its best but also empowers maintenance teams with the information needed to predict and prevent potential issues, optimizing both performance and reliability.