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...

516860-019 Armstrong SG-33 Suction Diffuser 3 x 3, 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...

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!

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

516860-020 Armstrong SG-43 Suction Guide 4x3. *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. Armstrong...

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!

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...

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...

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...

570200-218 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-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...