Wilo-Star-STG

Wilo-Star-STG Glandless circulation pump with screw connection. Selectable speed steps for power adjustment

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


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

Name decoding

Example:

Star-STG 25/6

.

Star-STG

.

Standard pump for solar and geothermal systems

25/

.

Nominal inner diameter Rp 1

6

.

Max. feed height in m

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

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