Description
The Spirax-Sarco 62801 B3-125-1″ is a heavy-duty inverted bucket steam trap engineered for dependable condensate discharge and air venting in industrial and commercial steam systems. Designed to handle up to 125 PSI (125#) working pressure, this trap delivers long-lasting, energy-efficient performance across a wide range of steam heating and process applications.
How It Works
The inverted bucket mechanism operates on the principle of buoyancy. When steam enters the trap body, the inverted bucket floats and holds the valve closed. As condensate accumulates, the bucket loses buoyancy and sinks, opening the valve to discharge condensate and non-condensable gases. This continuous, automatic cycling ensures efficient steam system operation with minimal steam loss.
Key Features
- 125 PSI (125#) maximum allowable working pressure
- 1″ NPT end connections for straightforward installation
- Inverted bucket design for reliable, continuous condensate removal
- Automatic air and non-condensable gas venting
- Robust construction suited for demanding steam system environments
- Spirax-Sarco B3-125 series — a trusted name in steam trap technology
Typical Applications
- Steam heating mains and branch lines
- Unit heaters and heat exchangers
- Process steam equipment
- Drip legs and steam distribution systems
- Industrial and commercial boiler systems
Product Specifications
- Brand: Spirax-Sarco
- Model / SKU: 62801
- Series: B3-125
- Trap Type: Inverted Bucket
- Pressure Rating: 125 PSI (125#)
- Connection Size: 1″ NPT
Trust Spirax-Sarco’s proven engineering to keep your steam system running at peak efficiency. The 62801 B3-125-1″ is backed by decades of steam management expertise and is available now at Jackson Systems.







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