Description
The Armstrong International 881-3/4-125 is a Series 881 Cast Iron Inverted Bucket Steam Trap engineered for dependable, continuous condensate drainage in industrial and commercial steam systems. With its proven inverted bucket mechanism, this trap efficiently discharges condensate while retaining live steam, helping to maximize system efficiency and reduce energy waste.
Key Features
- Series 881 inverted bucket steam trap design for reliable, intermittent condensate discharge
- 3/4″ NPT connections for straightforward installation into standard steam piping
- 125 PSI maximum allowable pressure (MAP) rating for compatibility with a wide range of steam system pressures
- 1/8″ orifice size for controlled condensate flow and optimal steam retention
- Cast iron body construction provides durability and long service life in demanding steam environments
- Inverted bucket mechanism resists damage from water hammer and remains operational even after steam loss
Product Specifications
- Brand: Armstrong International
- Model / SKU: 881-3/4-125
- Series: 881
- Connection Size: 3/4″ NPT
- Maximum Allowable Pressure (MAP): 125 PSI
- Orifice Size: 1/8″
- Body Material: Cast Iron
- Trap Type: Inverted Bucket
Applications
- Steam distribution and process piping condensate removal
- Heating coils, heat exchangers, and unit heaters
- Industrial process steam equipment
- Commercial HVAC steam systems
The Armstrong Series 881 inverted bucket steam trap is a trusted solution for facilities requiring efficient condensate management. Its cast iron construction and 125 PSI pressure rating make it well-suited for a broad spectrum of low- to medium-pressure steam applications.







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