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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
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
Armstrong International B series float & thermostatic steam trap. 1/2" D1175-7 15B2 15 PSIG, D500765 30B2 30 PSIG. 3/4" D1175-1 15B3 15 PSIG, D1175-2 30 B3 30 PSIG. 1" D1175-3 15B4 15 PSIG, D1175-8 30B4 30 PSIG. 1-1/4" D1175-9 15B5 15 PSIG, D1175-10 30B5 30 PSIG. 1-1/2" D1175-11 15B6 15 PSIG, D1175-12 30B6 30 PSIG. 2" D1175-13 15B8 15 PSIG, D1175-14 30B8 30 PSIG.

Armstrong B Series Float & Thermostatic Steam Trap
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
Armstrong International JD series float & thermostatic steam trap. 2" NPT; C6121 15JD8, D525860 20JD8, D502792 30JD8, C6123 75JD8, C6124 125JD8, C6125 175JD8, D504443 250JD8, D510180 300JD8.

Armstrong JD Series Ultra Capacity Float & Thermostatic Steam Trap, NPT
Armstrong International series GD-30 direct acting pressure reducing valve. 1/2" D24581, D24603, D24608; 3/4" D24582, D24604, D24609; 1" D24583, D24605, D24610; 1-1/2" D24584, D24606, D24611; 2" D24602, D24607, D24612.

Armstrong GD-30 Direct Acting Pressure Reducing Valve
Armstrong International GD-30S Stainless Steel Direct Acting Pressure Reducing Valve. 1/2" NPT D24566 3 - 15 PSIG, D119414 7 - 60 PSIG, D24568 50 - 140 PSIG. 3/4" NPT D24569 3 - 15 PSIG, D119415 7 - 60 PSIG, D24571 50 - 140 PSIG. 1" NPT D24572 3 - 15 PSIG, D119416 7 - 60 PSIG, D24574 50 - 140 PSIG.

Armstrong GD-30S Stainless Steel Direct Acting Pressure Reducing Valve
Armstrong International series GD-45 direct acting pressure reducing valve. 1/2" D24499, D24500, D24501; 3/4" D24502, D24503, D24504; 1" D24505, D24506, D24507.

Armstrong GD-45 Direct Acting Pressure Reducing Valve
Armstrong International series GP-2000 external pilot operated NPT pressure reducing valve. 1/2" D25469, 3 - 21 PSIG, 1/2" D25470 15 - 200 PSIG. 3/4" D25472 3 - 21 PSIG, 3/4" D25473 15 - 200 PSIG. 1" D25474 1.5 - 3 PSIG, 1" D25475 3 - 21 PSIG, 1" D25476 15 - 200 PSIG. 1-1/4" D25540 3 - 21 PSIG, 1-1/4" D25541 15 - 200 PSIG. 1-1/2" D25542 1.5 - 3 PSIG, 1-1/2" D25543 3 - 21 PSIG, 1-1/2" D25544 15 - 200 PSIG. 2" D25546 1.5 - 3 PSIG, 2" D25547 3 - 21 PSIG, 2" D25548 15 - 200 PSIG.

Armstrong Series GP-2000 Full Port NPT Steam Pressure Regulating Main Valve
Armstrong International GP-2000 Flanged Pressure Regulating Valve. 1" 150# Flanged D25591 3 - 21 PSIG, D25592 15 - 200 PSIG. 1-1/4" 150# Flanged D25593 3 - 21 PSIG, D25594 15 - 200 PSIG. 1-1/2" 150# Flanged D25595 3 - 21 PSIG, D25596 15 - 200 PSIG. 2" 150# Flanged D25550 3 - 21 PSIG, D25551 15 - 200 PSIG. 2" 300# Flanged D25553 3 - 21 PSIG, D25554 15 - 200 PSIG. 2-1/2" 150# Flanged D25555 1.5 - 3 PSIG, D25556 3 - 21 PSIG, D25557 15 - 200 PSIG. 2-1/2" 300# Flanged D25559 3 - 21 PSIG, D25560 15 - 200 PSIG.

Armstrong Series GP-2000 Full Port Flanged Steam Pressure Regulating Main Valve
Armstrong International GP-2000R Back Pressure Regulating Valve. 1/2" NPT D25795 3 - 21 PSIG, D25857 14 - 157 PSIG, D25858 143 - 200 PSIG. 3/4" NPT D25859 3 - 21 PSIG, D25860 14 - 157 PSIG, D25861 143 - 200 PSIG. 1" NPT D25862 3 - 21 PSIG, D25863 14 - 157 PSIG, D25864 143 - 200 PSIG. 1-1/4" NPT D25865 3 - 21 PSIG, D25866 14 - 157 PSIG, D25867 143 - 200 PSIG. 1-1/2" NPT D25868 3 - 21 PSIG, D25869 14 - 157 PSIG, 25870 143 - 200 PSIG. 2" NPT D25871 3 - 21 PSIG, D25872 14 - 157 PSIG, D25873 143 - 200 PSIG.

Armstrong Series GP-2000R Full Port NPT Steam Back Pressure Regulating Main Valve
Armstrong International series TS-2 thermostatic steam trap angle pattern. 1/2" D23324.

Armstrong TS-2 Thermostatic Steam Trap
Armstrong International series TS-3 thermostatic steam trap angle pattern. 1/2" D25932.

Armstrong TS-3 Thermostatic Steam Trap
Armstrong International FHS-4028G

Armstrong FHS-4028G Simplex Condensate Return Pump
Armstrong International AFH-4128G, FH2427.

Armstrong AFH-4128G Simplex Condensate Return Pump
Armstrong International AFH-41215-G, FHS-122, D13869, 30 gallon simplex condensate return system.

Armstrong AFH-41215-G Simplex Condensate Return Pump