Star-Z 20/1

Glandless pump circulator

Article number: 4028111

	Glandless standard high-efficiency pump	Glandless standard pump	Existing pump



Description
Product description	Yonos PICO-Z 15/0,5-4 140	Star-Z 20/1	Star-Z 20/1
Article number	4255411	4028111	4028111
Series	Yonos PICO-Z	Star-Z	Star-Z
Mains connection	1~230 V ±10%, 50/60 Hz	1~230 V ±10%, 50 Hz	1~230 V ±10%, 50 Hz
Pump connection	G 1	G 1	G 1
Pump connection (alternative designation)	RP 1/2	RP 1/2	RP 1/2
	DN 15	DN 15	DN 15
Display	LED segment display	No display	No display
Comment	Fits without modifications	Fits without modifications	Fits without modifications
Port-to-port length l0	140 mm	140 mm	140 mm
Operating data
Standard	-	-	-
Function
Control mode	Δp-c for constant differential pressure	-	-
	Constant speed (3 speed stages)	Constant speed (3 speed stages)	Constant speed (3 speed stages)
	Constant speed (n-const.)	-	-
Display	Actual volume flow	-	-
	Actual power consumption	-	-
Pump venting function	Manual	-	-
Equipment
Thermal insulation shell	Yes	-	-
Quick electrical connection	Wilo Connector	-	-
Operating elements	Green button	-	-
Motor data
Rated power P₂	15 W	19.5 W	19.5 W
Min. speed n_min	700 1/min	-	-
Max. speed n_max	3400 1/min	2900 1/min	2900 1/min
Power consumption P_{1 min}	4 W	-	-
Power consumption P_{1 max}	20 W	30 W	30 W
Emitted interference	EN 61000-6-3	EN 61000-6-3	EN 61000-6-3
Interference resistance	EN 61000-6-2	EN 61000-6-2	EN 61000-6-2
Electromagnetic compatibility	EN 61800-3	-	-
Insulation class	F	F	F
Protection class	IPX4D	IP44	IP44
Phases	1	1	1
Mains connection	1~230 V, 50/60 Hz	1~230 V, 50 Hz	1~230 V, 50 Hz
Materials
Impeller	PPO-GF30	PPE-GF30	PPE-GF30
Shaft	Oxide ceramic	Oxide ceramic	Oxide ceramic
Bearing	Carbon-graphite	Carbon, synthetic resin-impregnated	Carbon, synthetic resin-impregnated
Material	Stainless steel	Bronze, CC499K	Bronze, CC499K
Pipe connection
Inlet connection	G 1	G 1	G 1
PN connection on suction side	PN 10	PN 10	PN 10
Outlet connection	G 1	G 1	G 1
PN connection on discharge side	PN 10	PN 10	PN 10
Dimension, weight
Length with packaging	194 mm	147 mm	147 mm
Length L	156 mm	134 mm	134 mm
Height with packaging	121 mm	100 mm	100 mm
Height H	115 mm	94 mm	94 mm
Width with packaging	213 mm	187 mm	187 mm
Width W	153 mm	149 mm	149 mm
Gross weight, approx. m	1.6 kg	2.3 kg	2.3 kg
Net weight, approx. m	1.3 kg	2.2 kg	2.2 kg
Ordering information
Product description	Yonos PICO-Z 15/0,5-4 140	Star-Z 20/1	Star-Z 20/1
Brand	Wilo	Wilo	Wilo
EAN number	4062679265698	4016322364214	4016322364214
Article number	4255411	4028111	4028111

Data sheet

Hydraulic data
Maximum operating pressure PN	10 bar
Delivery head for Qmin H _Qmin	1.0 m
Max. volume flow Q_max	1.6 m³/h
Min. fluid temperature T_min	2 °C
Max. fluid temperature T_max	65 °C
Min. ambient temperature T_min	0 °C
Max. ambient temperature T_max	40 °C
Max. permitted total water hardness	3.21 mmol/l (18°dH)

Motor data
Mains connection	1~230 V, 50 Hz
Rated power P₂	19.5 W
Rated current I_N	0.14 A
Max. speed n_max	2900 1/min
Power consumption P_{1 max}	30 W
Emitted interference	EN 61000-6-3
Interference resistance	EN 61000-6-2
Protection class motor	IP44
Insulation class	F
Threaded cable connection	1 x PG11
Motor protection	no

Materials
Pump housing	Bronze, CC499K
Impeller	PPE-GF30
Shaft	Oxide ceramic
Bearing	Carbon, synthetic resin-impregnated

Installation dimensions
Port-to-port length L0	140 mm

Ordering information

Product data
Brand	Wilo
Product description	Star-Z 20/1
Article number	4028111
EAN number	4016322364214
Colour	Green
Minimum order quantity	1
Date of sales availability	1900-01-01

Packaging
Packaging type	Cardboard box
Packaging property	Sales packaging
Pieces per pallet	256
Number per layer	32

Dimension, weight
Length with packaging	147 mm
Length L	134 mm
Height with packaging	100 mm
Height H	94 mm
Width with packaging	187 mm
Width W	149 mm
Gross weight, approx. m	2.3 kg
Net weight, approx. m	2.2 kg

This circulator is suitable only for drinking water.

Domestic hot water circulator, constant-speed glandless pump for pipe installation. Blocking-current proof motor. Pump housing made of bronze, impeller made of fibreglass-reinforced plastic, ceramic shaft with resin-impregnated carbon friction bearings.

Operating data
Max. fluid temperature T_max	65 °C
Min. fluid temperature T_min	2 °C
Min. ambient temperature T_min	0 °C
Max. ambient temperature T_max	40 °C
Temperature range at max. ambient temperature +40 °C T	+2...+65 °C
Maximum operating pressure PN	10 bar
Max. permitted total water hardness	3.21 mmol/l (18°dH)

Motor data
Emitted interference	EN 61000-6-3
Interference resistance	EN 61000-6-2
Mains connection	1~230 V, 50 Hz
Power consumption P_{1 max}	30 W
Max. speed n_max	2900 1/min
Rated current I_N	0.14 A
Protection class motor	IP44
Threaded cable connection	1 x PG11

Materials
Pump housing	Bronze, CC499K
Impeller	PPE-GF30
Shaft	Oxide ceramic
Bearing	Carbon, synthetic resin-impregnated

Installation dimensions
Pump connection	G 1
Pump connection (alternative designation)	RP 1/2 DN 15
Port-to-port length L0	140 mm

Ordering information
Brand	Wilo
Product description	Star-Z 20/1
Net weight, approx. m	2.2 kg
Article number	4028111

Mechanical accessories

Pipe installation (2)
Screwed connections/adapters
	Screwed connection R ½ /∅ 15 i x G 1, 96 Set	112047493	on request
	Screwed connection R ½ /∅ 15 i x G 1, 1 Set	4092743	on request


Thermal insulation (1)
Size 14 thermal insulation shell
	Thermal insulation shell (Size 14)	4046444	on request

With Wilo as your partner, you can not only be sure of choosing high-quality product solutions, but also of benefiting from a comprehensive, worry-free package of well thought-out services. We collaborate to develop a service concept tailored to your individual needs; with our expertise and personal consultancy, we make sure that the operation of your systems is as energy-efficient, reliable and economical as possible. All the while our competent Wilo service technicians are ready to assist you with fast, reliable and on-time support.

Supervision
	Supervision Glandless pumps	2219320	on request

Installation
	Installation Glandless pumps	2219355	on request

Commissioning
	Commissioning Glandless pumps	2219390	on request

Maintenance
	Maintenance BASIC Glandless pumps	2219530	on request
	Maintenance COMFORT Glandless pumps	2219416	on request
	Maintenance PREMIUM Glandless pumps	2219545	on request

System Optimisation
	System Optimisation Glandless pumps	2219250	on request

Energy Solutions
	Energy Solutions Glandless pumps	2219285	on request

Repairs
	Repair Glandless pumps	2219609	on request