Armstrong International 30B3 Trap

The Armstrong International 30B3 is a high-performance Series B cast iron float and thermostatic steam trap designed for industrial and commercial heating systems. Featuring a 3/4" NPT connection and an 11/64" orifice, this unit is engineered to discharge condensate and air continuously at a maximum operating pressure of 30 PSI. The robust cast iron housing ensures durability in demanding environments, while the integrated thermostatic air vent prevents air binding by efficiently venting non-condensable gases during startup and operation. Ideal for low pressure steam systems, the 30B3 maintains a water seal to prevent live steam loss, significantly improving thermal efficiency. By utilizing a high-leverage valve mechanism, this F&T steam trap provides reliable modulation under varying load conditions, making it a critical component for maintaining a balanced and energy-efficient pipe network.

• Optimized Energy Efficiency: The float-operated valve ensures continuous drainage without the loss of live steam.
• Rapid Air Removal: The balanced pressure thermostatic air vent handles high volumes of air for faster system warm-up.
• Durable Construction: High-quality cast iron body and stainless steel internals provide a long service life in HVAC steam applications.
• Versatile Installation: Standard 3/4 inch NPT threads allow for easy integration into existing piping configurations.

• How do I choose the correct orifice size for my steam trap? Choosing the right orifice, such as the 11/64" found in the 30B3, depends on the maximum pressure differential and the REQUIRED condensate load in lbs/hr.
• What is the purpose of a float and thermostatic trap? These traps are specifically designed for applications where large amounts of air must be vented and condensate must be removed at steam temperature.
• Where should I install the Armstrong 30B3? This model is commonly used on unit heaters, heat exchangers, and drip legs where operating pressures do not exceed 30 PSI.

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.