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Wilo-Star-Z | Wilo
Your advantages
Wilo-Star-Z

Your advantages

  • AC pumps with electrical quick connection
  • All plastic parts that come into contact with the fluid fulfil KTW recommendations
Series description
Wilo-Star-Z

Design

Glandless circulator with screwed connection

Application

Domestic hot water circulation systems in the industry and building services.

Equipment/function

Operating modes

  • Speed stage switching (Star-Z...-3 only)

Manual functions

  • Setting of the speed stages (1 speed stage, 3 speed stages with Star-Z...-3 pumps)

Equipment

  • Wrench attachment point on the pump body (Star-Z 25 only)
  • Cable inlet in possible on both sides
  • Quick connection with spring clips
  • Blocking-current proof motor

Typekey

Example:

Wilo-Star-Z 20/1

Star

standard pump

Z

Circulator

20/

Nominal connection diameter

1

Nominal delivery head [m]

-3

3 speed stages

Technical data

  • Constant speed or, for Star-Z...-3, three selectable speed stages
  • Fluid temperature:
    • Drinking water up to 3.21 mmol/l (18 °dH): max. +65 °C, in short-time duty (2 h) up to +70 °C
  • Mains connection 1~230 V, 50 Hz
  • Protection class IP44
  • Nominal diameter Rp ½ (¾), Rp 1
  • Max. operating pressure 10 bar

Materials

  • Pump housing: bronze
  • Impeller: Plastic
  • Shaft: Oxide ceramic
  • Bearing: Carbon, synthetic resin-impregnated

Delivery state

  • Pump
  • Gaskets
  • Installation and operating instructions
Downloads

Installation and operating instructions

Wilo-Star-Z/-ZD

Article Number 4236978
Edition 2019-08
Page format 105.1 x 148.2 mm
Number of pages 184
PDF (5 MB)

General overview (Documents)

General overview 2019 International version

Article Number 2200591
Edition 2018
Page format 209.9 x 297.0 mm
Number of pages 74
PDF (40 MB)

General overview 2021 International version

Edition 2020
Page format 209.9 x 297.0 mm
Number of pages 74
PDF (10 MB)

Certificate REACH (Documents)

REACH regulation

Edition 2021-10
Page format 209.9 x 297.0 mm
Number of pages 2
PDF (162 KB)