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Stratos GIGA-D 40/1-51/4,2-S1 | Wilo

Stratos GIGA-D 40/1-51/4,2-S1

Article number: 2170614
Technical data
Tender text

High-efficiency in-line twin-head pump with EC motor of energy efficiency class IE5 in accordance with IEC 60034-30-2 and electronic power adjustment in glanded pump construction. The pump is configured as a single-stage low-pressure centrifugal pump with flange connection and mechanical seal. The Stratos GIGA-D has been predominantly designed for pumping heating water (acc. to VDI 2035), cold water and water-glycol mixtures without abrasive substances in heating, air-conditioning and cooling systems.


  • Single-stage low-pressure centrifugal pump with one-piece shaft in monobloc design
  • Spiral housing in in-line design (suction and pressure ports with the same flanges in a line)
  • PN 16 flange – drilled according to EN 1092-2
  • Pressure measuring connections (R 1/8) for mounted differential pressure sensor (version ...-R1 without differential pressure sensor)
  • Pump housing and motor flange with cataphoretic coating as standard
  • Mechanical seal S1 recommended for water-glycol mixtures with glycol proportions up to max. 50 % by volume and a fluid temperature of -20 °C up to max. +120 °C and also for oil proportions in the water-glycol mixture.
  • Connection voltages: 3~480 V ±10 % 50/60 Hz; 3~440 V ±10 % 50/60 Hz; 3~400 V ±10 % 50/60 Hz; 3~380 V -5 % +10 % 50/60 Hz


  • Mounting brackets for fixing to the foundation
  • Blind flanges for twin-head pump housing
  • Differential pressure sensor sets 0 – 10 V for pumps in ...–R1 version
  • IR-Monitor
  • IR-Stick
  • IF module PLR
  • IF module LON
  • IF module Modbus
  • IF module BACnet
  • IF module CAN

Standard equipment:

  • Green button manual operation level for:
    • Pump On/Off
    • Selecting the control mode: Δp-c (constant differential pressure), Δp-v (variable differential pressure), PID controller, n-constant (constant speed)
    • Setpoint and speed adjustment
    • Configuration of operating parameters
    • Fault acknowledgement
  • Pump display for displaying:
    • Control mode
    • Setpoint (e.g. differential pressure or speed)
    • Error and warning messages
    • Actual values (e.g. power consumption, actual value of the sensor)
    • Operating data (e.g. operating hours, energy consumption)
    • Status data (e.g. status of SSM and SBM relay)
    • Device data (e.g. pump name)
    • Operating mode (only for dual pump operation: main/standby operation, parallel operation)
    • Status of the pressure values correction

Additional functions:

  • Analogue interfaces 0 – 10 V, 2 – 10 V, 0 – 20 mA, 4 – 20 mA, built-in dual pump management, adjustable time interval for pump cycling (with dual pump operation), two configurable signalling relays for run signals and fault messages, configurable fault response adapted to HVAC applications, access disable on the pump, built-in full motor protection (PTC thermistor sensor) with trip electronics, condensation drain holes in the motor housing as standard (sealed in delivered condition), infrared interface for wireless communication with the operating and service unit Wilo-IR monitor and Wilo IR-Stick, plug-in position for Wilo IF modules Modbus, BACnet, CAN, PLR, LON for connecting to the building automation.
Operating Data
Min. fluid temperature Tmin -20 °C
Max. fluid temperature Tmax 140 °C
Min. ambient temperature Tmin 0 °C
Max. ambient temperature Tmax 40 °C
Maximum operating pressure PN 16 bar
Note on dimensioning 16 bar to 120 °C, 13 bar to 140 °C
Minimum efficiency index (MEI) ≥0.7
Mains connection 3~400 V, 50/60 Hz
Motor efficiency class IE5
Power consumption P1 max 4800 W
Rated power P2 4.4 kW
Max current Imax 8.3 A
Max. speed nmax 5130 1/min
Interference emission EN 61800-3
Interference immunity EN 61800-3
Insulation class F
Protection class motor IP55
Motor protection PTC integrated
Pump housing Grey cast iron
Impeller PPS-GF40
Shaft Stainless steel
Shaft seal Q1Q1X4GG
Lantern 5.1301/EN-GJL-250 KTL-coated
Installation dimensions
Pipe connection on the suction side DNs DN 40
Pipe connection on the discharge side DNd DN 40
Port-to-port length L0 280 mm
Ordering information
Brand Wilo
Product description Stratos GIGA-D 40/1-51/4,2-S1
Net weight, approx. m 84 kg
Article number 2170614

Installation and operating instructions

Wilo-Stratos GIGA, Wilo-Stratos GIGA-D, Wilo Stratos GIGA B

Article Number 2160202
Edition 2022-08
Page format 209.9 x 297.0 mm
Number of pages 268
PDF (28 MB)

Certification booklet

Wilo-Stratos GIGA2.0-I/-D, Wilo-Stratos GIGA /-D/-B, Wilo-Yonos GIGA2.0-I/-D

Article Number 2216678
Edition 2022-11
Page format 209.9 x 297.0 mm
Number of pages 52
PDF (22 MB)

Certificate REACH

REACH Regulation

Edition 2021-05
Page format 209.9 x 297.0 mm
Number of pages 4
PDF (262 KB)


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