Description
The Xylem-Hoffman Specialty Series B1 Inverted Bucket Steam Trap (Model B1125A-2, SKU 404312) is a dependable, time-tested solution for steam system condensate management. Built with a durable cast iron body, this trap is engineered to provide long-lasting, efficient operation in a wide range of industrial and commercial steam heating applications.
The inverted bucket design is one of the most reliable steam trap mechanisms available — it operates mechanically, resisting the effects of water hammer and pressure fluctuations while delivering consistent condensate discharge. The .125″ orifice is precisely sized to balance condensate throughput with steam conservation, helping to reduce energy waste and maintain system efficiency.
Key Features
- Series B1 inverted bucket steam trap design for reliable, mechanical operation
- Cast iron body construction for durability in demanding steam system environments
- 1/2″ NPT connections for straightforward installation and compatibility with standard piping
- 125 PSI maximum working pressure rating
- .125″ precision-sized orifice for optimized condensate discharge and steam conservation
- Resistant to water hammer and pressure surges
- Suitable for a wide range of commercial and industrial steam heating and process applications
Specifications
- Model: B1125A-2
- SKU: 404312
- Connection Size: 1/2″ NPT
- Maximum Working Pressure: 125 PSI
- Orifice Size: .125″
- Body Material: Cast Iron
- Trap Type: Inverted Bucket
- Series: B1
Applications
- Steam heating mains and branch lines
- Unit heaters and heat exchangers
- Steam distribution and condensate return systems
- Industrial process steam applications







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