Armstrong Motor Mounted Pumps for Boiler Feed, Circulating, and Hydronic Systems

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Condensate Units  |  Boiler Feed Units  |  Replacement Tube Bundles  |  Heat Exchangers  |  Boiler Gaskets  |  Pump Seals

Armstrong motor mounted pumps are ideal for cooling towers, HVAC, and general purpose applications.  Armstrong motor mounted pumps have features that ensure performance excellence.  With the Armstrong 4270, there is no need to disconnect the pipes while servicing the pump due to the radially-split volute.  The motor, with bracket and impeller attached, can be easily withdrawn from the volute after moving the volute capscrews.  These pumps are available in 1-1/4", 1-1/2", and 2" sizes. 
 

Armstrong Series 4270 Materials of Construction Armstrong Series 4280 Materials of Construction
4270 Pump Curves4270 Motor Data 4280 Pump Curves
Part Name Bronze Fitted Pump All Bronze Pump
Volute Cast Iron Bronze
Volute Cap Screws Steel
Impeller ULTEM
Mechanical Seal:
(Type 21)
Insert
Seat
Bellows
L-Cup
Retainer
Spring


Carbon
Ceramic
Viton
Viton
Stainless Steel
Stainless Steel
Motor/Bracket Aluminum
Faceplate Stainless Steel
Part Name Bronze Fitted Pump All Iron Pump All Bronze Pump
Volute Cast Iron Cast Iron Bronze
Volute Cap Screws Steel Steel Steel
Impeller Bronze Cast Iron Bronze
Mechanical Seal:
Insert
Seat
Bellows
O-Ring
Retainer
Spring

Carbon
Ni-Resist
EPDM
EPDM
Stainless
Stainless Steel

Carbon
Ni-Resist
EPDM
EPDM
Stainless
Stainless Steel

Carbon
Ceramic
EPDM
EPDM
Stainless
Stainless Steel
Shaft Sleeve Bronze Stainless Steel Bronze
Motor Bracket Cast Iron Cast Iron Bronze

 

  Also available from Armstrong Pump:  

Inline Circulating Pumps

Base Mounted Pumps

Vertical Inline Pumps

 Please call 1-800-780-3776 for pricing and availability. 


Contact Us Directly:

Toll Free:    1-800-780-3776
Int'l Phone: 770-957-9599
Int'l Fax:     770-957-9563
E-Mail: Email Your Request

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143 McDonough Parkway
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