Description
The Armstrong International 800-3/4-20 is a Series 800 Cast Iron Inverted Bucket Steam Trap engineered for reliable, continuous condensate removal in a wide range of industrial and commercial steam systems. With a 3/4″ NPT connection, a 20 PSI operating pressure rating, and a 3/16″ orifice, this trap delivers consistent performance while minimizing live steam loss and maximizing system efficiency.
How Inverted Bucket Steam Traps Work
The inverted bucket mechanism operates on the principle of buoyancy. When steam enters the trap body, the inverted bucket floats and closes the discharge valve, preventing steam loss. As condensate fills the trap, the bucket sinks and opens the valve, allowing condensate and non-condensable gases to discharge. This simple, robust design provides long service life with minimal maintenance requirements.
Key Features
- Series 800 cast iron body construction for durability in demanding steam applications
- 3/4″ NPT inlet and outlet connections for straightforward installation
- 20 PSI maximum operating pressure rating
- 3/16″ orifice for precise condensate discharge control
- Inverted bucket mechanism provides reliable, continuous operation
- Automatic air and non-condensable gas venting capability
- Resistant to water hammer and pressure fluctuations
- Designed for long service life with minimal maintenance
Specifications
- Brand: Armstrong International
- Model / SKU: 800-3/4-20
- Series: 800
- Body Material: Cast Iron
- Trap Type: Inverted Bucket
- Connection Size: 3/4″ NPT
- Maximum Operating Pressure: 20 PSI
- Orifice Size: 3/16″
Typical Applications
- Low-pressure steam distribution and process piping
- Unit heaters and convectors
- Steam-heated coils and heat exchangers
- Drip legs on steam mains
- Commercial and light industrial steam systems
Armstrong International is a globally recognized leader in steam, air, and hot water solutions. The Series 800 inverted bucket steam trap reflects Armstrong’s commitment to energy efficiency, system reliability, and ease of maintenance — making it a trusted choice for HVAC and process professionals.
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