Description
Armstrong International B1669-1 Pressure Change Assembly
The Armstrong International B1669-1 is a factory-engineered Pressure Change Assembly featuring a 1/4″ orifice, designed to allow field conversion of Armstrong inverted bucket steam traps to a different operating pressure range without replacing the entire trap body. This genuine OEM replacement component ensures your steam trap continues to perform at peak efficiency after a system pressure change, protecting your investment and minimizing downtime.
Compatible Trap Series
- 211 Series Inverted Bucket Traps
- 310 Series Inverted Bucket Traps
- 811 Series Inverted Bucket Traps
- TVS-811 Series Inverted Bucket Traps
- 881 Series Inverted Bucket Traps
- 981 Series Inverted Bucket Traps
- EM Series Inverted Bucket Traps
Key Features
- 1/4″ orifice size for precise condensate discharge control
- Enables in-field pressure range conversion without full trap replacement
- Genuine Armstrong International OEM component for assured fit and performance
- Engineered for use with Armstrong’s industry-leading inverted bucket steam trap lineup
- Helps maintain optimal steam system efficiency and energy savings
- Reduces total cost of ownership by extending trap service life
About Armstrong Inverted Bucket Traps
Armstrong International inverted bucket steam traps are renowned for their durability, reliability, and energy efficiency in commercial and industrial steam systems. The inverted bucket mechanism provides continuous air venting and dependable condensate discharge across a wide range of operating pressures. The B1669-1 Pressure Change Assembly makes it easy to adapt your existing trap to new system conditions, ensuring continued reliable operation.
Application
Ideal for facility engineers, mechanical contractors, and steam system maintenance professionals who need to reconfigure existing Armstrong inverted bucket traps following a steam system pressure change or upgrade. Always verify compatibility with your specific trap model and pressure requirements before installation.







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