Product Overview

Pump body: • Cast iron (closed system)
• Stainless steel** (open system)
• Lead-free bronze** (open system)
Impeller: Noryl
Shaft: ceramic
Bearings: ceramic
Gasket: epdm
** Certified <0.25 weighted average percent lead (nsf 372) and complies
with California Health and Safety code section 116875 (commonly
known as ab1953).
Max. fluid temperature*: 185°f/85°c (Astro 286 up to 1.35a)
150°f/65°c (Astro 286 over 1.35a)
230°f/110°c (all others)
Max. working pressure: 150 psi / 1034 kPa
Certification: etl listed for US and Canada (conforms to ul
std.778 certified to csa std. c22.2 no.108-01)
nsf 372 (for lead free bronze and stainless
steel models)
Warranty: Five years
* Since water conditions can vary with geographical location (i.e. amount and
type of dissolved solids) it is recommended that the operating temperature of
the fluid for open (potable) systems be kept as low as possible (i.e. below 150°f
or 65°c) to avoid precipitation of calcium.
model input speed
full load
amp draw (a)
nominal
power (w)
astro 210ci/ss
115v, 60hz
Single
phase
3 1.06
200
2 1.50
1 1.72
astro 220ssu
3 0.29
33
2 0.27
1 0.20
astro 225bs
3 0.64
75
2 0.49
1 0.38
astro 225ssu
3 0.69
83
2 0.55
1 0.43
astro 230ss/
ci/ci-r
3 0.81
97
2 0.58
1 0.45
astro 250ss/
ci/ci-r
3 0.98
117
2 0.79
1 0.65
astro 280ci/ss
3 1.90
2182 1.80
1 1.50
astro 290ci/ss
3 1.90
218
2 1.60
1 1.40
astro 280ci/ss
230v
230v,60hz
Single
phase
3 0.90
2102 0.86
1 0.80
astro 286ci/ss 1 1.60
375
Motor data
technical data
materials of construction
unning a contracting business
is challenging. You want so-
lutions that make your work
easier, and simplify your installations.
Armstrong understands your require-
ments and has built in the functional-
ity and reliability you need to be
successful.
Compare and check the details. Armstrong has listened to
contractors and added a host of new features to the Astro 2
circulator line. No other circulator line on the market is designed
with such attention to detail, and oers as much value to your
contracting business and customers.
Expanded line with four new models. Astro 280, 290, 210 and
286 models are now available in both cast iron and stainless
steel, allowing you to serve an even wider range of applications.
The full Astro 2 oering for hydronics applications covers 100%
of common competing models.
Cross-reference information is printed on
the box, for convenient access.
e-Coating on the inside of cast-iron volutes
provides enhanced corrosion protection for
improved reliability.
Flange-to-flange compatibility oers quick
and easy exchange of competing models.
Large wiring box and convenient plug-in
terminal strip save time.
High-flow check valve, is pre-installed for
convenience. Where the installation does
not call for a check valve, it can be removed
in seconds.
built to win
key features