Description
The Armstrong International A21958-1 is an OEM replacement gasket engineered for use with Armstrong’s AI2, A3, AI3, A4, AI4, A5, BI2, BI3, B4, BI4, and B5 Series Float & Thermostatic (F&T) Steam Traps. Designed to maintain a reliable, leak-free seal within the trap body, this gasket is a critical maintenance component that helps preserve the efficiency and longevity of your steam distribution system.
Using genuine Armstrong International replacement parts ensures proper fit and function, minimizing the risk of steam leaks, energy loss, and unplanned downtime. Whether you are performing routine maintenance or restoring a trap to full operating condition, the A21958-1 gasket delivers the sealing performance your system demands.
Compatible Steam Trap Series
- AI2 Series Float & Thermostatic Steam Traps
- A3 Series Float & Thermostatic Steam Traps
- AI3 Series Float & Thermostatic Steam Traps
- A4 Series Float & Thermostatic Steam Traps
- AI4 Series Float & Thermostatic Steam Traps
- A5 Series Float & Thermostatic Steam Traps
- BI2 Series Float & Thermostatic Steam Traps
- BI3 Series Float & Thermostatic Steam Traps
- B4 Series Float & Thermostatic Steam Traps
- BI4 Series Float & Thermostatic Steam Traps
- B5 Series Float & Thermostatic Steam Traps
Key Features
- Genuine OEM Armstrong International replacement gasket
- Engineered for a precise, leak-free fit within the trap body
- Compatible with a wide range of Armstrong F&T steam trap series
- Supports efficient steam system operation and reduces energy waste
- Ideal for routine maintenance and trap restoration
Application
Float & Thermostatic steam traps are widely used in HVAC, process heating, and industrial steam distribution systems to continuously discharge condensate while preventing the passage of live steam. Keeping the trap gasket in good condition is essential to maintaining system pressure integrity and maximizing trap service life. Always consult your Armstrong trap documentation or a qualified technician to confirm compatibility before installation.
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