Wilo-Star-STG

Deciphering the name

Example:	Star-STG 25/6
Star-STG	Standard pump for solar and geothermal systems
25/	Nominal diameter Rp 1
6	Max. delivery height in m

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Overview

Special hydraulic part for solar and geothermal systems
Pump casing with turnkey moulding.
Cataphoresis-coated (KTL) pump casing for corrosion protection against condensation

Type
Glandless circulation pump with threaded connection. Available in steps of speed to adjust the capacity

Application

Primary circuits in solar and geothermal systems.
Equipment/function
Operation modes

Switching speed steps

Manual control
Speed step setting: 3 speed steps

Accessories

Keyed casting on pump casing (nominal diameter DN 25/DN 30 only)
Double sided cable entry
Quick coupling with spring clamp terminals
Locking-current proof electric motor

Model overview

Products

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Product designation	Mains connection	Pipeline connection	Nominal flange diameter	Gross weight approx. m	Article number
Star-STG 25/4	1~230 V, 50 Hz	G 1½	G 1½	2.7 кг	4050265
Star-STG 25/6	1~230 V, 50 Hz	G 1½	G 1½	2.7 кг	4050266
Star-STG 15/4	1~230 V, 50 Hz	G 1	G 1	2.2 кг	4056933
Star-STG 15/6	1~230 V, 50 Hz	G 1	G 1	2.4 кг	4056946
Star-STG 15/11	1~230 V, 50 Hz	G 1	G 1	3.9 кг	4061442

Those. information

Technical Specifications

Temperature range from -10° C to +110° C, in short-term operation (2 h) up to +120° C
Power connection 1~230 V, 50 Hz
Protection class IP44
Rp ½, Rp 1 and Rp 1¼
Cross connection
Max. operating pressure 10 bar

Materials

Pump body: Grey cast iron
Impeller: Polypropylene
Shaft: Stainless steel
Bearings: Metal graphite

Download

Wilo-Star STG_instruction	Download
Documentation	Download

Colors

DOP

Wilo CAD

The Wilo CAD online library contains DWG drawings of Wilo pumping equipment. In this library, the dimensions of the pumping equipment are given as a guideline. Please note that the contents of the Wilo CAD online library are subject to technical changes.

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Wilo CAD online library