Wilo-Star-Z

Series description

Special features/product advantages

  • AC pumps with electrical quick connection
  • All plastic parts that come into contact with the fluid fulfil KTW recommendations

Design type

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 possible from both sides
  • quick connection with spring clips
  • Blocking-current proof motor

Scope of delivery

  • Pump
  • Gaskets for threaded connection
  • Installation and operating instructions

Type key

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, Rp 1
  • Max. operating pressure 10 bar

Materials

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

Duty chart

Wilo-Star-Z

Downloads

REACH Regulation

Edition 2018-10
Page format 209.9 x 296.7 mm
Number of pages 4

PDF (19 MB)

Download

General overview 2018 International version

Article Number 2200591
Edition 2018
Version number 1
Page format 209.9 x 297.0 mm
Number of pages 72

PDF (11 MB)

Download

Wilo-Star-Z 20/1, 25/2, 25/2 DM, 25/6, ZD 25/6

Article Number 4131022
Edition 1010
Version number 02
Page format A6
Number of pages 187

PDF (5 MB)

Download

Wilo-Star-Z 15 TT

Article Number 4106235, 4202386
Edition 1508
Version number 01
Page format A5
Number of pages 15

PDF (1 MB)

Download

Wilo-Digital timer (Star-Z 20/...-Z 25)

Article Number 4148573
Edition 1005
Version number 01
Page format A6
Number of pages 13

PDF (1 MB)

Download

Wilo-Plug-in module S1R-h (Star-Z 20/...-Z 25)

Article Number 4148574
Edition 1005
Version number 01
Page format A6
Number of pages 11

PDF (756 kB)

Download

Wilo-Plug-in module S1R-h (Star-Z 20/...-Z 25)

Article Number 4148574
Edition 1005
Version number 01
Page format A6
Number of pages 18

PDF (573 kB)

Download

Wilo-Star-Z 20/1, 25/2, 25/2 DM, 25/6, ZD 25/6

Article Number 4131022
Edition 1010
Version number 02
Page format A6
Number of pages 14

PDF (2 MB)

Download

Wilo-Star-Z 15 TT

Article Number 4106235, 4202386
Edition 1508
Version number 01
Page format A5
Number of pages 17

PDF (1 MB)

Download

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