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32UN04 ASTRO 280CI UNSPSC # 40151504

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5/16 hp HP Cast Iron Wet Rotor, Maintenance Free Hot Water Circulating Pump

  • Item # 32UN04
  • Mfr. Model # ASTRO 280CI
  • UNSPSC # 40151504
  • Catalog Page # 2660 2660
Country of Origin China. Country of Origin is subject to change.

The hot water circulating pump was designed to pump glycol and water solutions up to 50% in domestic and light commercial closed loop hydronic heating systems. Flanges not included.

Technical Specs

  • Item Hot Water Circulating Pump
  • HVAC Circulating Pump Type Potable Water Circulating Pump & Hydronic Circulating Pump
  • HP 5/16 hp
  • Voltage - Pumps 115V AC
  • Phase - Pumps 1
  • Connection Style Flange
  • Inlet/Outlet Size 1-1/4 in
  • Shut-Off 31 ft
  • Housing Material - Pumps Cast Iron
  • Max. GPM @ Head 32 gpm @ 0 ft
  • Series ASTRO 280
  • Face to Face Dimension 6 1/2 in
  • Best Efficiency GPM @ Head 16 gpm @ 18 ft
  • Min. GPM @ Head 0 gpm @ 31 ft
  • Drive Type Direct
  • Height 6 1/2 in
  • Length (Straight Wireway) 5 1/2 in
  • Width 6 3/4 in
  • Loop Configuration Closed
  • Flange/Union Included No
  • Includes (2) Gaskets, Circulator Pump
  • Max. Operating Pressure 150 psi
  • Max. Temp. 230 Degrees F
  • Amps 1.90
  • RPM 3,600 RPM
  • Number of Speeds 3
  • Thermal Protection Yes
  • Pump Mount In Line
  • Impeller Material 30% Glass-Filled Noryl(R)
  • Shaft Material Ceramic
  • Mechanical Seal Wet Rotor
  • Features 3 Speed, Compact, High Performance, Maintenance Free
  • Standards ETL
  • Manufacturers Warranty Length 2 yr
  • Compliance cETL

The hot water circulating pump was designed to pump glycol and water solutions up to 50% in domestic and light commercial closed loop hydronic heating systems. Flanges not included.

Compliance and Restrictions

This product is not intended for potable water applications (human consumption – drinking and cooking) and has not been designed to be compliant with the “Safe Drinking Water Act” requirements for low lead in potable water applications. This item is for use only in non-potable (non-human consumption) water applications.

  • This item is restricted for international sale.This item is restricted for conveying or dispensing water for potable use (human consumption).
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