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Seal-less circulator with flanged connection. Two speed, manually adjustable to match flow requirements

Domestic hot water circulation systems, and related "open” systems (e.g. cooling water circulation)
Special features/Product advantages
  • Pre-selectable speed adjustment
  • Wet rotor, NSF approved type
Wilo-TOP-Z


Technical data

  • Fluid temperatures (open systems and domestic hot water)Max. +140 °F (+60 °C) continuous operation (min +14 °F)Max. +176 °F (+80 °C) intermittent operation (min +14 °F)Heating water (closed systems): +14 °F (-10 °C) to +230 °F (+110 °C)
    • Max. +140 °F (+60 °C) continuous operation (min +14 °F)
    • Max. +176 °F (+80 °C) intermittent operation (min +14 °F)
    • Heating water (closed systems): +14 °F (-10 °C) to +230 °F (+110 °C)
  • Power supply 115/1/60, 230/1/60, 208-230/3/60, 460/3/60 & 575/3/60 volt
  • NEMA class 2
  • Max. operating pressure 145 PSI
  • Ambient temperature rangeMin. +32 °F (0 °C)Max. +104 °F (+40 °C)
    • Min. +32 °F (0 °C)
    • Max. +104 °F (+40 °C)
Equipment
  • Pre-selectable speed stages for optimum load adjustment
  • NSF approved for drinking water applications
  • Combination flange ½” - 2 bolt commercial oval type2” - 4 bolt "pump” flange3” - 4 bolt, 125# raised face flange
    • ½” - 2 bolt commercial oval type
    • 2” - 4 bolt "pump” flange
    • 3” - 4 bolt, 125# raised face flange
  • Power on light (single and three phase) and reverse rotation light (three phase only)
  • Thermal overload sensor built in
  • Cast aluminium terminal box with threaded NPT electrical opens on both sides
Materials
  • Pump housing: lead free "eco-bronze”
  • Impeller: reinforced PPS (polypropelene) for types 1.5x20, 2x25, 2x30, 2x40, PPE for types 1.5x15, 3x30
  • Shaft: stainless steel
  • Bearing: carbon (synthetic resin impregnated)
Scope of delivery
  • Pump
  • Flange gaskets
  • Installation and operating instructions
Wilo-TOP-Z