Varios PICO-STG 25/1-7

Glandless pump circulator

Article number: 4215542

	Glandless high-efficiency pump	Existing pump



Description
Product description	Varios PICO-STG 25/1-7	Varios PICO-STG 25/1-7
Article number	4215542	4215542
Series	Varios PICO-STG	Varios PICO-STG
Mains connection	1~230 V ±10%, 50/60 Hz	1~230 V ±10%, 50/60 Hz
Pump connection	G 1½	G 1½
Pump connection (alternative designation)	RP 1	RP 1
	DN 25	DN 25
Display	LED coding display	LED coding display
Comment	Fits without modifications	Fits without modifications
Port-to-port length l0	180 mm	180 mm
Operating data
Standard	-	-
Function
Control mode	Δ p-v for variable differential pressure (3 pump curves)	Δ p-v for variable differential pressure (3 pump curves)
	Constant speed (3 speed stages)	Constant speed (3 speed stages)
	Δ p-c for constant differential pressure (3 pump curves)	Δ p-c for constant differential pressure (3 pump curves)
	External control via iPWM signal	External control via iPWM signal
Special features of the series	Sync function for optimised pump cycling adjustment	Sync function for optimised pump cycling adjustment
Display	Fault signals (error codes)	Fault signals (error codes)
	Manually activated restart or pump venting function	Manually activated restart or pump venting function
Pump venting function	Manual	Manual
Equipment
Thermal insulation shell	As accessory	As accessory
Quick electrical connection	Wilo Connector	Wilo Connector
Operating elements	Green push button	Green push button
Motor data
Energy efficiency index (EEI){$footnote=footnote1}	≤ 0.20	≤ 0.20
Rated power P₂	38 W	38 W
Min. speed n_min	2340 1/min	2340 1/min
Max. speed n_max	4366 1/min	4366 1/min
Power consumption P_{1 min}	1 W	1 W
Power consumption P_{1 max}	50 W	50 W
Emitted interference	EN 61000-6-3	EN 61000-6-3
Interference resistance	EN 61000-6-2	EN 61000-6-2
Electromagnetic compatibility	EN 61800-3	EN 61800-3
Insulation class	F	F
Protection class	IPX4D	IPX4D
Phases	1	1
Mains connection	1~230 V, 50/60 Hz	1~230 V, 50/60 Hz
Materials
Impeller	PP-GF40	PP-GF40
Shaft	Stainless steel	Stainless steel
Bearing	Carbon, metal-impregnated	Carbon, metal-impregnated
Material	Grey cast iron	Grey cast iron
Pipe connection
Inlet connection	G 1½	G 1½
PN connection on suction side	PN 10	PN 10
Outlet connection	G 1½	G 1½
PN connection on discharge side	PN 10	PN 10
Dimension, weight
Length with packaging	194 mm	194 mm
Length L	180 mm	180 mm
Height with packaging	105 mm	105 mm
Height H	94 mm	94 mm
Width with packaging	174 mm	174 mm
Width W	126 mm	126 mm
Gross weight, approx. m	2.1 kg	2.1 kg
Net weight, approx. m	1.8 kg	1.8 kg
Ordering information
Product description	Varios PICO-STG 25/1-7	Varios PICO-STG 25/1-7
Brand	Wilo	Wilo
EAN number	4048482792156	4048482792156
Article number	4215542	4215542

Data sheet

Hydraulic data
Maximum operating pressure PN	10 bar
Head max H _max	6.7 m
Flow max Q _max	3.8 m³/h
Minimum suction head at 50 °C m	0.5 m
Minimum suction head at 95 °C m	3 m
Minimum suction head at 110 °C	10 m
Min. fluid temperature T_min	-20 °C
Max. fluid temperature T_max	110 °C
Min. ambient temperature T_min	-10 °C
Max. ambient temperature T_max	40 °C

Motor data
Energy efficiency index (EEI) ^*	≤ 0.20
Mains connection	1~230 V ±10%, 50/60 Hz
Rated power P₂	38 W
Min. speed n_min	2340 1/min
Max. speed n_max	4366 1/min
Power consumption P_{1 min}	1 W
Power consumption P_{1 max}	50 W
Emitted interference	EN 61000-6-3
Interference resistance	EN 61000-6-2
Electromagnetic compatibility	EN 61800-3
Threaded cable connection	1 x PG11
Insulation class	F
Protection class	IPX4D

* The benchmark for the most efficient circulators is EEI ≤ 0.20

Materials
Pump housing	Grey cast iron
Impeller	PP-GF40
Shaft	Stainless steel
Bearing	Carbon, metal-impregnated

Installation dimensions
Pump connection	G 1½
Pump connection (alternative designation)	RP 1 DN 25
Port-to-port length L0	180 mm

Ordering information

Product data
Brand	Wilo
Product description	Varios PICO-STG 25/1-7
Article number	4215542
EAN number	4048482792156
Colour	Green
Minimum order quantity	1
Date of sales availability	2017-09-01

Packaging
Packaging type	Cardboard box
Packaging property	Sales packaging
Pieces per pallet	198
Number per layer	24

Dimension, weight
Length with packaging	194 mm
Length L	180 mm
Height with packaging	105 mm
Height H	94 mm
Width with packaging	174 mm
Width W	126 mm
Gross weight, approx. m	2.1 kg
Net weight, approx. m	1.8 kg

High-efficiency pump Wilo-Varios PICO-STG, electronically controlled. Maintenance-free glandless circulator with screwed connection, blocking-current proof synchronous motor according to ECM technology and built-in electronic power control for variable differential pressure control. Can be used for all heating and air-conditioning applications, as well as for solar and geothermal systems.

Standard-equipped with:

Preselectable control modes for optimum load adjustment:
- Differential pressure constant (Δp-c), 3 pre-defined pump curves
- Differential pressure variable (Δp-v), 3 pre-defined pump curves
- Constant speed (3 speed stages)
- External control by iPWM GT (Heating/Geothermal) or iPWM ST (Solar) signal
Sync function (manual programming mode) for reprogramming the pump in the event of replacement
Manual pump venting function for venting the rotor chamber
Manual restart
LED display
- Display of selected control mode und pump curve
- Status display during venting and manual restart
- LED coding during the sync function
- Operation and fault display
Integrated motor protection
Automatic deblocking function
Electrical connection cable with 3-pole plug connection and Wilo-Connector
PWM connection
Cataphoretically-coated pump housing

Operating data
Min. fluid temperature T_min	-20 °C
Max. fluid temperature T_max	110 °C
Min. ambient temperature T_min	-10 °C
Max. ambient temperature T_max	40 °C
Maximum operating pressure PN	10 bar
Minimum suction head at 50 °C m	0.5 m
Minimum suction head at 95 °C m	3 m
Minimum suction head at 110 °C	10 m

Motor data
Energy efficiency index (EEI) ^*	≤ 0.20
Mains connection	1~230 V ±10%, 50/60 Hz
Rated power P₂	38 W
Min. speed n_min	2340 1/min
Max. speed n_max	4366 1/min
Power consumption P_{1 min}	1 W
Power consumption P_{1 max}	50 W
Emitted interference	EN 61000-6-3
Interference resistance	EN 61000-6-2
Electromagnetic compatibility	EN 61800-3
Insulation class	F
Protection class	IPX4D
Threaded cable connection	1 x PG11

* The benchmark for the most efficient circulators is EEI ≤ 0.20

Materials
Pump housing	Grey cast iron
Impeller	PP-GF40
Shaft	Stainless steel
Bearing	Carbon, metal-impregnated

Installation dimensions
Pump connection	G 1½
Pump connection (alternative designation)	RP 1 DN 25
Port-to-port length L0	180 mm

Ordering information
Brand	Wilo
Product description	Varios PICO-STG 25/1-7
Net weight, approx. m	1.8 kg
Article number	4215542

Mechanical accessories

Pipe installation (3)
Screwed connections/adapters
	Screwed connection Rp 1 x G 1½, 72 Set	112047298	on request
	Screwed connection Rp 1 x G 1½, 1 Set	4092741	on request
	Adapter G 1½/G 2	4105914	on request


Pipe installation, adapter fitting (9)
Threaded adapter R
	Threaded adapter R 2, GG	110626790	on request
	Threaded adapter R 6, GG	110678493	on request
	Threaded adapter R 1, GG	110786891	on request
	Threaded adapter R 7, GG	110787094	on request
	Threaded adapter R 24, GG	110880596	on request

Flanged rings RF
	Flanged ring RF 7, PN6	110628790	on request
	Flanged ring RF 9, PN6	110679395	on request
	Flanged ring RF 13, PN6	110679498	on request
	Flanged ring RF 10, PN6	110851499	on request


Thermal insulation (1)
Thermal insulation shell
	Thermal insulation shell	4206066	on request

Electrical accessories

Pump control (1)
Timer switch SK 601N
	Switchgear SK 601N	2120443	on request


Plug (4)
Angle plug
	Angle plug	4150229	on request

PWM signal cable
	PWM signal cable	4193901	on request
	Bidirectional iPWM control cable	4222049	on request

Connector
	Wilo-Connector	4200870	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.

Extended Warranty
	Extended Warranty Glandless pumps	2219589	on request

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