Armstrong International C3484-1 Valve and Seat

The Armstrong International C3484-1 Valve and Seat is a critical replacement component engineered for high-performance steam trap repair. Designed specifically for Float & Thermostatic steam traps, this hardened stainless steel assembly ensures a tight, leak-proof seal to prevent live steam loss and maintain system efficiency. The C3484-1 is the direct OEM replacement for Armstrong B2, BI2, B3, and BI3 series traps operating at 15 PSI, as well as A5 series F&T traps rated for 75 PSI service. For HVACR technicians, this lapped and matched set is essential for restoring optimal condensate discharge and air venting capabilities. Utilizing precision-ground seating surfaces, the Armstrong C3484-1 resists the erosive forces of flashing condensate and high-velocity steam. Proper installation of this F&T trap valve seat is vital for protecting heat exchanger coils and ensuring stable process temperatures across your steam assembly.

• OEM Compatibility: Specifically engineered for Armstrong International 15B2, 15B3, and 75A5 steam trap models.
• Erosion Resistance: Constructed from hardened stainless steel to withstand industrial-grade condensate cycling.
• Precision Sealing: Features a factory-lapped valve and seat assembly for a metal-to-metal contact seal.
• Operational Efficiency: Restores Float & Thermostatic trap performance to prevent energy waste.

Which steam trap models use the C3484-1 valve and seat?
This kit is compatible with Armstrong B2, BI2, B3, and BI3 series (15 PSI) and A5 series (75 PSI) F&T traps.

Should I replace only the valve or the seat?
No. For reliable performance and to prevent steam bypass, you must replace the valve and seat as a matched set.

What tools are needed for installation?
Technicians typically require a standard wrench for the seat and a screwdriver for the guide plate screws; do not use pipe dope on the valve seat threads.

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.