Armstrong Astro 2 Series Re-Circulation Pumps Buyers Guide & Review

The Armstrong Astro 2 series of re-circulation pumps is designed for dedicated return in three-pipe plumbing installations.  It automatically circulates water through domestic water pipes. This ensures that hot water is available instantly at every tap throughout a residence.  With this recirculation pump, far less water is wasted each time a hot water faucet is opened.  It saves an average of 12,000 gallons of water annually for a typical four-person household.  This model comes assembled, wired, tested, and ready for installation.  No electrician required for installation!

Features

  • System components are compact, rugged, quiet, and reliable
  • Ceramic pump shaft and bearings
  • For indoor use only
  • Meets building code requirements (where applicable)
  • Maximum working pressure: 150 psi
  • Maximum water temperature: 230°F
  • 6 ft power cord, molded duplex plug with ground
  • Complies with section 116875 at the California Health and Safety /Code and Vermont Act 193 (Lead content of wetted surface is 0.25% or less)
ARMSTRONG ASTRO 2 SERIES RE-CIRCULATION PUMPS
armstrong astro 2 series re circulation pumps astro
Armstrong Astro 2 Series Re-Circulation Pumps

Model Comparison Chart

Model Connection HP Voltage Material of Construction GPM Max. Head
ASTRO 225BS050S-LC 1/2″ Sweat 1/25 115 Bronze 9 12′
ASTRO 225BS075S-LC 3/4″ Sweat 1/25 115 Bronze 9 12′
ASTRO 220SSU-LC 1-1/4″ NPSM Union 1/25 115 Stainless Steel 9 5.5′
ASTRO 220SSU050S-LC 1/2″ Sweat 1/25 115 Stainless Steel 9 5.5′
ASTRO 220SSU075S-LC 3/4″ Sweat 1/25 115 Stainless Steel 9 5.5′
ASTRO 225SSU-LC 1-1/4″ NPSM Union 1/25 115 Stainless Steel 14 13′
ASTRO 230SS-LC 2 Bolt Flange 1/25 115 Stainless Steel 18 18′
ASTRO 250SS-LC 2 Bolt Flange 1/25 115 Stainless Steel 18 24′
ASTRO 225BS050S-T 1/2″ Sweat 1/25 115 Bronze 9 10.5′
ASTRO 225BS075S-T 3/4″ Sweat 1/25 115 Bronze 9 12′
ASTRO 220SSU-T 1-1/4″ NPSM Union 1/25 115 Stainless Steel 9 5.5′
ASTRO 220SSU050S-T 1/2″ Sweat 1/25 115 Stainless Steel 9 5.5′
ASTRO 220SSU075S-T 3/4″ Sweat 1/25 115 Stainless Steel 9 5.5′
ASTRO 225BS075S-TA 3/4″ Sweat 1/25 115 Bronze 9 12′
ASTRO 225SSU-T 1-1/4″ NPSM Union 1/25 115 Stainless Steel 14 13′
ASTRO 220SSU-TA 1-1/4″ NPSM Union 1/25 115 Stainless Steel 9 5.5′
ASTRO 220SSU050S-TA 1/2″ Sweat 1/25 115 Stainless Steel 9 5.5′
ASTRO 230SS-T 2 Bolt Flange 1/25 115 Stainless Steel 18 18′
ASTRO 220SSU075S-TA 3/4″ Sweat 1/25 115 Stainless Steel 9 5.5′
ASTRO 225SSU-TA 1-1/4″ NPSM Union 1/25 115 Stainless Steel 14 13′
ASTRO 225BS050S-TA 1/2″ Sweat 1/25 115 Bronze 9 12′
ASTRO 230SS-TA 2 Bolt Flange 1/25 115 Stainless Steel 18 18′
ASTRO 250SS-T 2 Bolt Flange 1/25 115 Stainless Steel 18 24′
ASTRO 250SS-TA 2 Bolt Flange 1/25 115 Stainless Steel 18 24′
ASTRO Express 2 1-1/4″ NPSM Union 1/25 115 Stainless Steel 9 6′
PERFORMANCE CURVES

armstrong astro 2 series re circulation pumps curves

DIMENSIONS

armstrong astro 2 series re circulation pumps dimensions

HOT WATER DISTRIBUTION WITH RE-CIRCULATION

armstrong astro 2 series re circulation pumps re-circulation

MATERIALS OF CONSTRUCTION

armstrong astro 2 series re circulation pumps materials

MODEL SELECTION

armstrong astro 2 series re circulation pumps selection

BROCHURE
Armstrong Astro 2 Series Re-Circulation Pump Brochure
INSTALLATION MANUAL
Armstrong Astro 2 Series Re-Circulation Pump Installation Manual
TIMER & AQUASTAT INSTRUCTIONS
Armstrong Timer & Aquastat Instructions

Pump Products application engineers are standing by to help you find the right pump, as well as to provide price quotes, stocking availability and shipping information. Call our toll free number 1-800-429-0800 to speak to an expert today.