Grundfos UP26-99F


Pump, Circulator, 1/6hp

UP26-99F 97521
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TypeClosed Loop
ItemCirculator Pump
Housing MaterialCast Iron
Face to Face Dimension (In.)6-1/2
Max. Temp. (F)230
Max. Working Pressure (PSI)145
Flange/Union IncludedNo
Shut-Off (Ft.)32
Impeller MaterialPES Composite
Shaft MaterialAluminum Oxide Ceramic
Thermal ProtectionAuto
GPM of Water @ 1 Ft. of Head33
GPM of Water @ 2 Ft. of Head32
GPM of Water @ 3 Ft. of Head31
GPM of Water @ 4 Ft. of Head30
GPM of Water @ 5 Ft. of Head29.2
GPM of Water @ 6 Ft. of Head5
GPM of Water @ 7 Ft. of Head28
GPM of Water @ 10 Ft. of Head25.4
GPM of Water @ 13 Ft. of Head23
GPM of Water @ 15 Ft. of Head21.5
GPM of Water @ 20 Ft. of Head17
GPM of Water @ 25 Ft. of Head12
GPM of Water @ 30 Ft. of Head5
Length (In.)6-1/2
Width (In.)4-1/8
Max. GPM @ Head (Ft.)33 @ 1
Best Efficiency GPM @ Head (Ft.)12 @ 18
Min. GPM @ Head (Ft.)12 @ 25
Drive TypeDirect
Bearing TypeCarbon/Thrust
Mechanical SealWet Rotor
Manufacturers Warranty Length2 Years
Includes Flange Bolts And Gaskets
Weight 12.000000


  • Hot Water Return Pumps
  • Max. working pressure: 145 psi
  • Max. temp.: 230°F (except 4HY93 is 200°F)
  • Maintenance-free
  • Water lubricated can and rotor system
  • 115V
  • Flanges sold separately
  • Cast-Iron
  • Designed for domestic and light commercial closed-loop water circulating systems such as hydronic heating, heat pumps, low-pressure boosting, and general water circulating systems. Do not use for potable water systems.
Circulator Pump, Closed Loop System, 1/6 HP, 1 Phase, Voltage 115, 2.15 Amps, Inlet/Outlet Flanged, Housing Material Cast Iron, Max. Temp. 230 F, Max. Working Pressure 145 PSI, Shut-Off 32 Ft., 3000 RPM, Impeller Material PES Composite, Auto Thermal Protection, Mechanical Seal Wet Rotor, Warranty Length 2 Years

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