Description
The Armstrong International Series 800 Cast Iron Inverted Bucket Steam Trap (Model 800-1/2-20) is a dependable, mechanically operated steam trap engineered for efficient condensate and air removal in industrial and commercial steam distribution systems. Built around the proven inverted bucket operating principle, this trap delivers continuous, reliable performance with minimal maintenance requirements.
How It Works
The inverted bucket mechanism uses steam buoyancy to keep the trap closed when steam is present, and opens to discharge condensate and non-condensable gases when the bucket loses buoyancy. This simple, rugged design resists water hammer, operates across a wide load range, and provides a clear visual indication of trap condition during testing.
Key Specifications
- Model: 800-1/2-20
- Series: 800
- Body Material: Cast Iron
- Connection Size: 1/2″ NPT
- Maximum Operating Pressure: 20 PSI
- Orifice Size: 3/16″
- Trap Type: Inverted Bucket
- Brand: Armstrong International
Features & Benefits
- Inverted bucket design provides dependable mechanical operation with no external power required
- Cast iron body offers durability and long service life in steam system environments
- 1/2″ NPT connections for straightforward installation into standard steam piping
- 3/16″ orifice sized for 20 PSI service — ensures proper condensate capacity and steam economy
- Resistant to water hammer and hydraulic shock common in steam distribution lines
- Continuous venting of air and CO₂ improves system efficiency and heat transfer
- Simple internal design minimizes maintenance downtime and repair costs
Typical Applications
- Low-pressure steam distribution mains and branch lines
- Process heating equipment and heat exchangers
- Steam-traced piping and jacketed lines
- Unit heaters and radiator systems
- Industrial and commercial boiler plant condensate return systems
Why Armstrong International?
Armstrong International is a globally recognized leader in steam, air, and hot water system solutions. The Series 800 steam trap line reflects decades of engineering expertise, delivering products trusted by facility engineers and HVAC professionals worldwide for their reliability and long service life.
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