Armstrong Pump & HVAC System Products

11AV-1/8 Armstrong 3/4" Stainless Steel Air Vent 178PSI. The Armstrong all-stainless steel guided lever air vents have been developed to provide positive venting of air/gases under pressure. For pressures to 600 psig (41 bar) or specific...

1AV-3/4 (1/8) Armstrong AIR VENT 3/4"P  1/8". 1-AV—A cast iron air vent that uses a free-floating lever that closes positively, ensuring a leak tight closing under all conditions. This vent is good for low capacity air/gas venting up to...

11AV 5/64 Armstrong 3/4" Stainless Steel Air Vent 400PSI. The Armstrong all-stainless steel guided lever air vents have been developed to provide positive venting of air/gases under pressure. For pressures to 600 psig (41 bar) or specific...

SG-33 Armstrong Suction Diffuser 516860-019, 3"x3" flanged. Port Sizes (ins) System x Pump. Armstrong suction diffusers are designed for direct mounting on the suction flange of horizontal and vertical pumps. Armstrong Suction Guides (SGs)...

11AV 38 Armstrong 3/4" Stainless Steel Air Vent 267PSI. The Armstrong all-stainless steel guided lever air vents have been developed to provide positive venting of air/gases under pressure. For pressures to 600 psig (41 bar) or specific gravity...

516860-014 Armstrong SG-22 Suction Diffuser 2 x 2, Port Sizes (ins) System x Pump. Armstrong suction diffusers are designed for direct mounting on the suction flange of horizontal and vertical pumps. Armstrong Suction Guides (SGs) are installed...

GP-2000 Armstrong 1/2" NPT Pressure Reducing Valve 3-21 PSI Pilot for steam service. Information: GP-2000 Armstrong 1/2" NPT Pressure Reducing Valve 3-21 PSI Pilot Installation Guide GP-2000 Armstrong 1/2" NPT Pressure Reducing Valve 3-21 PSI Pilot...

A5345 Armstrong Air Vent For "B" Series Steam Traps. This air vent is for use with all Armstrong "B" series F&T traps with 15 to 30 pound operating pressures. This Item Usually Ships The Same Day!

AV-13 Armstrong Air Vent. Please note image is generic. If you have any questions please give us a call at 1-800-781-7405 or email us your request. Sales@NationalPumpSupply.com This Item Usually Ships The Same Day!

570200-387 Armstrong Flo-Trex Valve FTV-3GS. (Grooved Straight Pattern). *Please note image is generic. Armstrong Flo-Trex Valves are used on the discharge side of pumping equipment to protect pumps from damage and keep them operating at peak...

21AR-3/4 Armstrong Cast Iron Air Vent 1/16 208 PSI. *Please note image is generic. This Item Usually Ships The Same Day!

570200-218 Armstrong FTV-2TS Flo-Trex Valve Threaded Style Straight Pattern. *Please note image is generic. Armstrong Flo-Trex Valves are used on the discharge side of pumping equipment to protect pumps from damage and keep them operating at peak...

SG-43 Armstrong Suction Guide 516860-020, 4"x3" flanged. *Please note image is generic. Port Sizes (ins) System x Pump. Armstrong suction diffusers are designed for direct mounting on the suction flange of horizontal and vertical pumps...

A9739 Armstrong Air Vent For "A, K and J" Series Steam Traps. This air vent is for use with all "A, K and J" Series Float & Thermostatic Steam Traps with 30 to 175 pound operating pressures. This Item Usually Ships The Same Day!

SG-66 Armstrong Suction Guide 516860-026, Port Sizes (ins) System x Pump. Armstrong suction diffusers are designed for direct mounting on the suction flange of horizontal and vertical pumps. Armstrong Suction Guides (SGs) are installed on the...

22-AV Armstrong SS Air Vent 3/4" NPT 600 psi. The Armstrong all-stainless steel guided lever air vents have been developed to provide positive venting of air/gases under pressure. For pressures to 600 psig (41 bar) or specific gravity down to 0...

13-AV Armstrong SS Air Vent 1" NPT 45 psi. The Armstrong all-stainless steel guided lever air vents have been developed to provide positive venting of air/gases under pressure. For pressures to 600 psig (41 bar) or specific gravity down to 0.50...

975003-701 Armstrong AAE-750 Air Vent. This Item Usually Ships Same Day!

570200-486 Armstrong Flo-Trex Valve FTV-2.5GA, Grooved Angle Pattern. (Supplied with GROOVED pump & system connections). *Please note image is generic. Armstrong Flo-Trex Valves are used on the discharge side of pumping equipment to...

570200-477 Armstrong Flo-Trex Valve FTV-3FA Angle Pattern. (Supplied with ANSI-125 FLANGED pump & system connections). Flange adapter kits not required. *Please note image is generic. Armstrong Flo-Trex Valves are used on the discharge...

570200-215 Armstrong FTV-1.5TS Flo-Trex Valve Threaded Style Straight Pattern. *Please note image is generic. Armstrong Flo-Trex Valves are used on the discharge side of pumping equipment to protect pumps from damage and keep them operating at peak...

SG-54 Armstrong Suction Guide 516860-022, Port Sizes (ins) System x Pump. Armstrong suction diffusers are designed for direct mounting on the suction flange of horizontal and vertical pumps. Armstrong Suction Guides (SG's) are installed on the...

13-AV Armstrong SS Air Vent 1" NPT 309 psi. The Armstrong all-stainless steel guided lever air vents have been developed to provide positive venting of air/gases under pressure. For pressures to 600 psig (41 bar) or specific gravity down to 0...

570200-377 Armstrong FTV-3FS Flo-Trex Valve, Straight pattern valve. *Please note image is generic. Armstrong Flo-Trex Valves are used on the discharge side of pumping equipment to protect pumps from damage and keep them operating at peak efficiency...

570200-376 Armstrong FTV-2.5FS Flo-Trex Valve, Straight pattern valve. *Please note image is generic. Armstrong Flo-Trex Valves are used on the discharge side of pumping equipment to protect pumps from damage and keep them operating at peak...

570200-476 Armstrong Flo-Trex Valve FTV-2.5FA Angle Pattern. (Supplied with ANSI-125 FLANGED pump & system connections). Flange adapter kits not required. *Please note image is generic. Armstrong Flo-Trex Valves are used on the...

570200-380 Armstrong FTV-6FS Flo-Trex Valve 6" Flange, Straight pattern valve. *Please note image is generic. Armstrong Flo-Trex Valves are used on the discharge side of pumping equipment to protect pumps from damage and keep them operating at peak...

516860-016 Armstrong SG-32 Suction Diffuser 3 x 2, Port Sizes (ins) System x Pump. Armstrong suction diffusers are designed for direct mounting on the suction flange of horizontal and vertical pumps. Armstrong Suction Guides (SGs) are installed...

D25543 Armstrong GP2000 DI 1.5" NPT Pressure Reducing Valve 3-21 for steam service. Information: GP-2000 Armstrong 1/2" NPT Pressure Reducing Valve 3-21 PSI Pilot Installation Guide GP-2000 Armstrong 1/2" NPT Pressure Reducing Valve 3-21 PSI...

D25547 GP-2000 Armstrong 2" NPT Pressure Reducing Valve 3-21 for steam service. Information: GP-2000 Armstrong 1/2" NPT Pressure Reducing Valve 3-21 PSI Pilot Installation Guide GP-2000 Armstrong 1/2" NPT Pressure Reducing Valve 3-21 PSI Pilot...

GP-2000 Armstrong 3/4" NPT Pressure Reducing Valve 3-21 PSI Pilot  for steam service. Information: GP-2000 Armstrong 1/2" NPT Pressure Reducing Valve 3-21 PSI Pilot Installation Guide GP-2000 Armstrong 1/2" NPT Pressure Reducing Valve 3-21...

22-AV Armstrong SS Air Vent 3/4" NPT 474 psi. The Armstrong all-stainless steel guided lever air vents have been developed to provide positive venting of air/gases under pressure. For pressures to 600 psig (41 bar) or specific gravity down to 0...

22-AV Armstrong SS Air Vent 3/4" NPT 126 psi. The Armstrong all-stainless steel guided lever air vents have been developed to provide positive venting of air/gases under pressure. For pressures to 600 psig (41 bar) or specific gravity down to 0...

13-AV Armstrong SS Air Vent 1" NPT 570 psi 7/64". The Armstrong all-stainless steel guided lever air vents have been developed to provide positive venting of air/gases under pressure. For pressures to 600 psig (41 bar) or specific gravity down...

SG-44 Armstrong Suction Guide 516860-021, 4"x4" flanged. Port Sizes (ins) System x Pump. Armstrong suction diffusers are designed for direct mounting on the suction flange of horizontal and vertical pumps. Armstrong Suction Guides (SG's) are...

570200-914 Armstrong FTV-14FS Flo-Trex Valve, Straight pattern valve. *Please note image is generic. Armstrong Flo-Trex Valves are used on the discharge side of pumping equipment to protect pumps from damage and keep them operating at peak...

570200-383 Armstrong FTV-12FS Flo-Trex Valve, Straight pattern valve. *Please note image is generic. Armstrong Flo-Trex Valves are used on the discharge side of pumping equipment to protect pumps from damage and keep them operating at peak...

570200-382 Armstrong FTV-10FS Flo-Trex Valve, Straight pattern valve. *Please note image is generic. Armstrong Flo-Trex Valves are used on the discharge side of pumping equipment to protect pumps from damage and keep them operating at peak...

570200-381 Armstrong FTV-8FS Flo-Trex Valve, Straight pattern valve. *Please note image is generic. Armstrong Flo-Trex Valves are used on the discharge side of pumping equipment to protect pumps from damage and keep them operating at peak efficiency...

570200-378 Armstrong FTV-4FS Flo-Trex Valve, Straight pattern valve. *Please note image is generic. Armstrong Flo-Trex Valves are used on the discharge side of pumping equipment to protect pumps from damage and keep them operating at peak efficiency...