Description
The Armstrong International Series 880 Cast Iron Inverted Bucket Steam Trap (Model 880-3/4-125) is a dependable, mechanically operated steam trap engineered for efficient condensate and air removal in a wide range of commercial and industrial steam systems. Built around the time-proven inverted bucket operating principle, this trap opens and closes in direct response to the difference in density between steam and condensate, delivering continuous, energy-efficient operation with minimal steam loss.
Key Features
- Inverted bucket operating principle for reliable, automatic condensate discharge
- Cast iron body construction for durability in demanding steam system environments
- 3/4″ NPT inlet and outlet connections for straightforward installation into standard piping
- 125 PSI maximum allowable pressure (MAP) rating
- 7/64″ orifice size optimized for controlled condensate flow at rated pressure
- Armstrong Series 880 design — a trusted standard in steam trap technology
- Vents air and CO₂ on startup for rapid system warm-up
- Suitable for steam mains, drip legs, tracer lines, and process heating applications
Product Specifications
- Brand: Armstrong International
- Model / SKU: 880-3/4-125
- Series: 880
- Trap Type: Inverted Bucket Steam Trap
- Body Material: Cast Iron
- Connection Size: 3/4″ NPT
- Maximum Allowable Pressure (MAP): 125 PSI
- Orifice Size: 7/64″
Application
The Armstrong Series 880 inverted bucket steam trap is well suited for steam distribution and process heating applications where reliable condensate removal and air venting are critical. Its cast iron body makes it a cost-effective solution for low- to medium-pressure steam systems found in commercial buildings, industrial plants, and institutional facilities. The 3/4″ NPT connections allow for easy integration into existing piping configurations, while the 7/64″ orifice is matched to the 125 PSI pressure rating to ensure optimal performance and minimal live steam loss.
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