Description
The Armstrong International B1669-2 is a precision-engineered Pressure Change Assembly designed to retrofit or service a wide range of Armstrong inverted bucket steam traps. Featuring a 3/16″ orifice, this assembly allows technicians to adjust the pressure rating of an existing trap body without full trap replacement — maximizing uptime and reducing maintenance costs in steam distribution systems.
Compatible Trap Series
- 211 Series Inverted Bucket Traps
- 310 Series Inverted Bucket Traps
- 800 Series Inverted Bucket Traps
- 811 Series Inverted Bucket Traps
- TVS-811 Series Inverted Bucket Traps
- 880 Series Inverted Bucket Traps
- 881 Series Inverted Bucket Traps
- 981 Series Inverted Bucket Traps
- EM Series Inverted Bucket Traps
Key Features
- 3/16″ orifice size for precise steam metering and condensate discharge
- Enables in-field pressure rating changes without replacing the entire trap body
- Genuine Armstrong International OEM replacement part for reliable, long-term performance
- Engineered for use in industrial and commercial steam systems
- Supports efficient condensate removal and minimizes steam loss
- Durable construction built to withstand demanding steam system operating conditions
About Armstrong Inverted Bucket Traps
Armstrong International inverted bucket traps are among the most trusted steam trap designs in the industry, known for their durability, reliability, and ability to handle a wide range of pressures and condensate loads. The inverted bucket mechanism provides continuous operation and is highly resistant to water hammer and steam loss. The B1669-2 Pressure Change Assembly makes it simple to reconfigure an existing trap for a new pressure range, extending the service life of your installed equipment and reducing total cost of ownership.
Application
- Industrial process steam systems
- Commercial HVAC steam heating systems
- Steam distribution and condensate return lines
- Maintenance and upgrade of existing Armstrong inverted bucket trap installations
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