Armstrong Astro 2 circulators are designed for quiet operation and zero maintenance. In combination with cast iron volutes, the Astro 2 line is intended to circulate water or ethylene-glycol solutions in closed hydronic or solar heating systems. Astro 2 pumps feature three volute materials for residential, small industrial, and commercial applications. They are suitable for residential heating or cooling, potable water, and water conservation. In addition, Astro 2 pumps feature a simple terminal strip for fast and easy wiring and three field-selectable speeds.
Armstrong Astro 2 Circulator Pump Features
- Cast iron, lead-free bronze, or stainless steel volutes
- 0 to 64 US GPM flow; 0 to 42 ft head
- Maximum ambient temperature: 40°C
- Maximum fluid temperature: 110°C
- 33 W to 218 W
- 1/2" - 3/4" sweat, 1-1/4" union, or standard 2-bolt flange
Armstrong Astro 2 Circulator Pump Documentation
Armstrong Astro 2 Circulators Outline
Armstrong Astro 2 Circulators Submittal
Armstrong Astro 2 Circulators Technical Data
Armstrong Astro 2 Circulators Timer Aquastat Installation
Armstrong Astro 2 Circulators Installation
Armstrong Astro 2 Circulators 3-Speed Submittal
Armstrong Astro 2 Hot Water Circulation System
The Armstrong Astro 2 hot water re-circulation system automatically circulates water through domestic water pipes, ensuring hot water is available instantly at every tap. As a result, less water is wasted each time a hot water faucet is turned on – saving an average of 12,000 gallons of water annually for a typical four-person household. In addition, they are ideal for retrofit applications.
Armstrong Astro 2 Hot Water Circulation System Features
- Lead-free bronze or stainless steel pump casing
- Ceramic pump shaft and bearings
- PEI impeller
- EPDM bearing seals
- Longest pipe run between hot water tank and farthest fixture: 250 ft (76 m)
- Aquastat maintains hot water temperature within a 20°F (11°C) range between 85°F (29°C) and 105°F (40°C)
- Maximum water temperature: 230°F (110°C)
Armstrong Astro 2 Hot Water Circulation System Documentation
Armstrong Astro 2 Hot Water Circulation System Brochure
Armstrong Astro Express 2 Hot Water Circulation System
The Armstrong Astro Express 2 hot water recirculation system combines a circulator and low-flow (LF) valve to provide instant hot water in a residential plumbing system. The LF valve shifts cooled hot water into the cold water supply line instead of into the drain, which means far less cooled water is wasted each time the hot water faucet is opened. This saves an average of 12,000 gallons of water annually for a typical four-person household. Ideal for retrofit applications.
Armstrong Astro Express 2 Hot Water Circulation System Features
- Stainless steel circulator
- Lead-free bronze valve
- Circulator plus low-flow valve configuration
- 0 US GPM to 9.5 US GPM flow; 0 ft to 6 ft head
- Maximum ambient temperature: 40°C
- Maximum fluid temperature: 110°C
- 33 W
- 1-1/4" union
Armstrong Astro Express 2 Hot Water Circulation System Documentation
Armstrong Astro Express 2 Hot Water Circulation System Installation
Armstrong Astro Express 2 Hot Water Circulation System LF Valve Installation
Armstrong Astro Express 2 Hot Water Delivery System Installation
