e.2 series circulators - national pump supply

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file no: 10.16 date: may 2017 supersedes: 10.16 date: june 2014 E.2 Series solution outline 372 Circulators

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file no: 10.16date: may 2017

supersedes: 10.16date: june 2014

tm

E.2 Series

s o l u t i o n o u t l i n e

372

Circulators

be smaller & more efficientthe e.2-series dry motor circulator

Armstrong E.2 Series circulators deliver

outstanding value to designers, specifiers, contractors, wholesalers, OEMs and building owners.

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:

These design improvements, supported by extensive factory testing, make the E.2 Series circulator a reliable, trouble-free pumping solution that’s perfect for residential and commercial installations.

year warranty3bu

ilt

to la

st • larger,stainlesssteelshaft• newsealed,permanentlylubricatedbearings• bellows-stylemechanicalsealwithsiliconcarbidewearsurfaces• newwaterslingertoprotectmotoragainstwaterintrusion

E.2 Series circulators are designed for use in a wide range of hydronic applications, including:

Hot & chilled water recirculationDomestic hot water generationSnow-melt installationsRadiant heating systemsGeothermal heat pumps

easy to maintain & repair

lifetime value

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.

The compact size of E.2 Series circulators makes them easy to install, even in confined spaces. The minimized flange-to-flange dimensions, make it easy for contractors to upgrade an existing circulator with an E.2 Series circulator, without making changes to the installed piping.

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 on-site labor costs for contractors.

leading duty-point efficiency

easy installation & upgrades

the environmentally friendly solution

$1400

$1200

$1000

$800

$600

$400

$200

$0

e11 e10 leadingdrymotor

leadingwetrotor

cost of ownershipfor di�erent c irculators

10 yearenergy cost

installedcost

Broad range of circulator sizes lets you match performance to system requirements and avoid over-sizing

Easy on-site seal replacement means you can repair an E.2 Series pump rather than throwing it away and installing a replacement

Excellent duty-point efficiency helps you reduce energy consumption

Mechanical seal can be replaced easily in less than five minutes

easy to select Wholesalers and installing contractors will appreciate the interchangeability of the E.2 Series. Flange to flange dimensions and hydraulic characteristics (flow and head) are matched to many competing pumps of equal power, so it’s easy to upgrade existing installations with an E.2 Series pump. Respective information is presented in the E.2 Series Technical Overview.

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e.2 series performance curves

Circled numbers denote E.2 Series model number (Perfor-mance guaranteed only at operating point indicated).

tm

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