1 replacement option found

Existing pump - Circulation

Brand Older Wilo
Product name ZS 20-1
Overall length 140 mm
Mains connection 1x230 V
Pipe Connection G 32

Replacement pump - Conventional Exchange sheet

Product name Star-Z 20/1
Item no. 4028111
Overall length 140 mm
Mains connection 1x230 V
Pipe Connection G 25
Fluid temperature range Max +65 °C

Comment

**NOTE** Modification of piping.

Product information
Star-Z 20/1

Star-Z 20/1
Item no. : 4028111

Your advantages
  • AC pumps with electrical quick connection
  • All plastic parts that come into contact with the fluid fulfil KTW recommendations
Construction
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
Scope of delivery
  • Pump
  • Gaskets for threaded connection
  • Installation and operating instructions
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