Armstrong International 880-1/2-125 Trap

The Armstrong International 880-1/2-125 is a high-performance inverted bucket steam trap designed for exceptional reliability in demanding HVACR and industrial steam applications. Built with a rugged cast iron body (ASTM A48 Class 30) and an integral strainer, this horizontal side-inlet/side-outlet trap provides a robust solution for managing condensate while protecting downstream equipment from debris. Featuring a precision-engineered 7/64" orifice, the unit is optimized for systems operating at a maximum pressure of 125 PSI, offering a capacity of approximately 680 lbs/hr. The 1/2" NPT connections allow for seamless integration into existing return lines. Unlike inferior designs, the 880 Series utilizes a free-floating stainless steel mechanism with no fixed pivots, significantly reducing wear and friction. The top-mounted discharge orifice creates a permanent water seal to prevent live steam loss, while the continuous air venting capability effectively eliminates CO2 and non-condensable gases, ensuring maximum thermal efficiency and resistance to water hammer.

Key Benefits

• Efficient Condensate Drainage: The inverted bucket principle ensures immediate discharge of condensate to prevent backup in heat exchange equipment.
• Integral Protection: The built-in stainless steel strainer prevents dirt and scale from fouling the valve seat, reducing the need for external filtration.
• Energy Conservation: A unique leverage system and water seal design prevent live steam loss, significantly lowering operational energy costs.
• Durability: Rugged cast iron construction and all-stainless steel internals provide superior resistance to corrosion and hydronic shock.
• Serviceability: The 880 Series is fully repairable, allowing for easy maintenance of the valve and seat without replacing the entire unit.

Common Questions

What is the maximum operating pressure for this specific model?
This model is rated for a maximum operating pressure of 125 PSI with a 7/64" orifice. Performance may vary based on differential pressure across the trap.

Can this steam trap handle air and CO2?
Yes, the 880 Series provides continuous automatic air venting at steam temperature through a small vent hole in the bucket, preventing air binding.

Is the Armstrong 880 resistant to water hammer?
The inverted bucket design is inherently resistant to water hammer, making it one of the most durable choices for volatile steam systems.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.