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...

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...

516860-019 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...

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...

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!

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...

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!

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...

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

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-64 Armstrong Suction Guide 516860-023, 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...

D25548 GP-2000 Armstrong 2" NPT Pressure Reducing Valve 15-200#. 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 Submittal...

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...

SG-1414 Armstrong SG-1414 Suction Guide 516862-210. 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 suction side of pumps...

SG-63 Armstrong Suction Guide 516860-037, 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...

516860-029 Armstrong SG-108 Suction Guide. *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 Suction...

D24271 Armstrong GD-24 BRZ W/NBR 1/2" NPT Reducing Valve. Armstrong International GD-24 direct acting pressure reducing valves are an industrial-grade valve for water systems, the GD-24 is lightweight, compact and economical. The valve comes with...

SG-88 Armstrong SG-88 Suction Guide 516860-028, 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...

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...

D538205 Armstrong 23-312 Air Vent 3/4 NPT 600PSI 1/16 Orifice. Please note image is generic. Information: Armstrong Series 23-312 Air Vent Submittal Sheet Armstrong Series 23-312 Air Vent Information Sheet Please Contact Us For Lead Time!

516860-052 Armstrong SG-1515TF Suction Guide 1.5 x 1.5, 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...

22-AV Armstrong SS Air Vent 3/4" NPT 590 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 371 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 217 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 57 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 35 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 1/8". 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...