Armstrong International

Founded in 1900, Armstrong International is a private, fifth-generation family-owned company. Throughout The Great Depression, two world wars, multiple recessions, and so much more, we have continued to evolve, expand and thrive. Today, Armstrong's global enterprise has more than 3,000 employees and representatives serving the world.

Armstrong products consistently deliver best-in-class quality, longevity and value. More than a century of in-depth knowledge and experience enables Armstrong to manage your steam and condensate requirements better than anyone in the world. Armstrong provides reliable, hardworking products that trap steam, and much more. 


Armstrong International AI series in-line float & thermostatic steam trap. 1/2" D501280 15 PISG, 1/2" D503339 30 PSIG, 1/2" D500567 75 PSIG, 1/2" D500446 125 PSIG, 1/2" D15769 175 PSIG, 3/4" D527772 15 PSIG, 3/4" D500137 30 PSIG, 3/4" D501343 75 PSIG, 3/4" D17140 125 PSIG, 3/4" D501576 175 PSIG, 1" D501830 15 PSIG, 1" D501988 30 PSIG, 1" D500434 75 PSIG, 1" D500447 125 PSIG, 1" D500499 175 PSIG.

Armstrong AI Series In-Line Float & Thermostatic Steam Trap

Regular price $452.00
Armstrong International AI series in-line float & thermostatic steam trap with integral vacuum breaker. 1/2" D501280-VB 15 PISG, 1/2" D503339-VB 30 PSIG, 1/2" D500567-VB 75 PSIG, 1/2" D500446-VB 125 PSIG, 1/2" D15769-VB 175 PSIG, 3/4" D527772-VB 15 PSIG, 3/4" D500137-VB 30 PSIG, 3/4" D501343-VB 75 PSIG, 3/4" D17140-VB 125 PSIG, 3/4" D501576-VB 175 PSIG, 1" D501830-VB 15 PSIG, 1" D501988-VB 30 PSIG, 1" D500434-VB 75 PSIG, 1" D500447-VB 125 PSIG, 1" D500499-VB 175 PSIG.

Armstrong AI-VB Series In-Line Float & Thermostatic Steam Trap With Integral Vacuum Breaker

Regular price $634.00
Armstrong International BI series float & thermostatic steam trap. 1/2" D503913 15BI2 15 PSIG, D502960 30BI2 30 PSIG. 3/4" D500390 15BI3 15 PSIG, D500655 30BI3 30 PSIG. 1" D500430 15BI4 15 PSIG, D501375 30BI4 30 PSIG.

Armstrong BI Series In-Line Float & Thermostatic Steam Trap

Regular price $266.00