E.2 Series
Circulators 372
CM
solution outline file no: 10.16 date: june 2014
supersedes: 10.16 date: march 2013
be smaller & more efficient the e.2-series dry motor circulator rmstrong E.2 Series circulators deliver outstanding value to designers, specifiers, contractors, wholesalers, OEMs and building owners.
built to last
A
E.2 Series circulators have been re-designed to improve durability and provide enhanced protection against leakage and water damage to electrical components. New design elements include:
E.2 Series circulators are designed for use in a wide range of hydronic applications, including: Hot & chilled water recirculation Domestic hot water generation Snow-melt installations Radiant heating systems Geothermal heat pumps
• larger, stainless steel shaft • new sealed, permanently lubricated bearings • bellows-style mechanical seal with silicon carbide wear surfaces • new water slinger to protect motor against water intrusion These design improvements, supported by extensive factory testing, make the E.2 Series circulator a reliable, troublefree pumping solution that’s perfect for residential and commercial installations.
3
year warranty
lifetime value
the environmentally friendly solution Broad range of circulator sizes lets you match performance to system requirements and avoid over-sizing
easy to maintain & repair E.2 Series circulators are permanently lubricated, so there's no requirement for maintenance during normal operation. When the mechanical seal wears out, it can be replaced in less than five minutes, which reduces onsite labor costs for contractors.
Excellent duty-point efficiency helps you reduce energy consumption
leading duty-point efficiency The highly efficient dry motor design and hydraulics make the E.2 Series circulator more efficient than other fixed speed pumps in its class. This excellent wire-to-water efficiency leads to energy savings that building owners will appreciate.
easy installation & upgrades The compact size of E.2 Series circulators makes them easy to install, even in confined spaces. The minimized flange-toflange dimensions, combined with the Armstrong offering of cross-referenced Spool Pieces, make it easy for contractors to upgrade an existing circulator with an E.2 Series circulator, without making changes to the installed piping.
$1400
Easy on-site seal replacement means you can repair an E.2 Series pump rather than throwing it away and installing a replacement
Mechanical seal can be replaced easily in less than five minutes
cost of ownership
for diff e r e nt c ir c ulators
$1200
10 year energy cost
$1000
installed cost
$800 $600 $400 $200 $0 e11
e10
leading dry motor
leading wet rotor
f l o w – L/s 0
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40
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35 10 8
total head – m
total head – feet
23 easy to select 25
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Wholesalers and installing contractors will appreciate6 the interchangeability 20 13 of the15E.2 Series. Flange to flange dimensions and hydraulic characteristics 15 4 19 (flow and head) are matched to many competing pumps of equal power, 10 so it’s easy to upgrade existing17 installations with an E.2 Series pump. 7 2 8 5 Respective information is11presented in the E.2 Series Technical Overview. 21
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23 bertrand avenue toronto, ontario canada m1l 2p3 t +416 755 2291
f l o w – L/s 0
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7
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9
60
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buffalo
birmingham heywood wharf, mucklow hill, halesowen west midlands b62 8dj, united kingdom t +44 (0) 8444 145 145
50 12
total head – feet
93 east avenue north tonawanda new york u.s.a. 14120 -6594 t +716 693 8813
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manchester
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toronto
e. 2 series performance curves
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wenlock way manchester united kingdom b62 8dj t +44 (0) 8444 145 145
f l o w – L/s 0
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40
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shanghai
30
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25 21
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6
13
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10 7
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2
total head – m
#59, first floor, 3rd main margosa road malleswaram india 560 003 t +91 (80) 4149 2832
10
total head – feet
bangalore
11
0
728, yan an xi road suite 6-i shanghai, 200050 p.r.c. t +021 3756 6696
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a r m55 s t r o n g f lu i d t e c h n o lo g y. c o m
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m
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tm
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45
et
a r m s t r o n g f lu i d t e c h n o lo g y established 1934
1
Circled numbers denote E.2 Series model number (Performance guaranteed only at operating point indicated).