Wilo-Stratos GIGA
Series description




Design
- High efficiency, single stage, low pressure, inline centrifugal pump
- Supplied with EC motor and electronic duty adaptation
- Available in glanded construction , mechanical shaft seal, and flanged connections
Application
Hot water heating systems, air conditioning, closed cooling circuits, industrial circulating systems without abrasive subtances.
Type key
Example | Wilo-Stratos GIGA 1.5/3-165 |
Stratos | High-efficiency pump |
GIGA | Inline single pump |
1.51 | Pipe connection [inch] [flanges acc. ANSI Class 125] |
3-165 | Infinitely variable nominal pump head 3 to 165 [ft] |
Special features/product advantages
- Innovative high-efficiency pump for highest efficiency, based on a new Wilo glanded pump design
- Highly efficient EC motor (efficiency = IE4 limit values accordingto IEC TS 60034-31 Ed.1)
- New hydraulics ideally adjusted to the EC motor technology
- Integrated electronic power adjustment
- Extremely compact and space-saving design
- Easy-to-operate due to established red button technology and display
- Different control modes ?p-c, ?p-v, PID and n=const. (manual control mode)
- Control range is up to three times as high as for conventional electronically controlled pumps
- Analogue interfaces 0-10 V, 2-10V, 0-20 mA, 4-20 mA
- Optional interfaces for bus communication using plug-in IF-Modules
- Integrated double pump management with efficiency-optimized peak-load activation
- Two configurable signal relays for run and fault signals
- Fault management tailored to heating and air-conditioning applications
- Access disable on the pump can be activated
- Integrated full motor protection
- High corrosion protection due to cataphoretic coating
- Condensate drainage as standard
- Integral threaded pump feet for foundation installation
Technical data
- Permitted temperature range of the fluid:-4°F to 284°F [-20 °C to +140 °C]
- Mains connection
- 3~460 V (±10 %), 60 Hz
- 3~400 V (±10 %), 50/60 Hz
- 3~380 V (-5 %/+10 %), 50/60 Hz
- Protection class IP 55, insulation class F
- Max. operating pressure 232 psi [16 bar] to 248°F [120 °C], 189 psi [13 bar] to 284°F [140 °C]
Materials
- Pump housing and lantern: EN-GJL-250
- Impeller: PPS-GF40
- Shaft: 1.4122
- Mechanical seal: AQEGG; other mechanical seals on request
Equipment/function
Operating modes
- Δp-c for constant differential pressure
- Δp-v for variable differential pressure
- PID control
- Manual control mode (n=constant)
Manual operation level
- Red button and display
Manual functions
- Differential pressure setpoint setting
- Speed setting (manual control mode)
- Operating mode setting
- Pump ON/OFF setting
- Configuration of all operating parameters
- Error acknowledgement
External control functions
- "Overriding Off" control input
- "External pump cycling" control input (effective only in double pump operation mode)
- Analogue input 0–10 V, 0–20 mA for manual control mode (DDC) and remote setpoint adjustment
- Analogue input 2–10 V, 4–20 mA for manual control mode (DDC) and remote setpoint adjustment
- Analogue input 0–10 V for actual value signal from pressure sensor
- Analogue input 2–10 V, 0-20 mA, 4–20 mA for actual value signal from pressure sensor
Signal and display functions
- Collective fault signal SSM
- Collective run signal SBM
Data exchange
- Infrared interface for wireless data exchange with IF-modules/IR monitor Plug-in position for Wilo IF-modules (Modbus, BACnet, CAN, PLR, LON) for connection to building automation
Protection functions
- Full motor protection with integrated trip electronics
- Access disable
Dual pump management (double pump or 2 x single pump)
- Main/standby operation (automatic fault-actuated switchover)
- Pump cycling main/standby operation after 24 hours
- Parallel operation
- Parallel operation (efficiency-optimised peak-load activation and deactivation)
Equipment
- Wrench attachment point at pump body (for threaded pipe union pumps with P2< 100 W)
- For flange-end pumps: Flange versions
- Standard version for DN 32 to DN 65 pumps: PN 6/10 combination flange (PN 16 flange according to EN 1092-2) for PN 6 and PN 16 counter flanges
- Standard version for DN 80/DN 100 pumps: PN 6 flange (designed for PN 16 according to EN 1092-2) for PN 6 counter flange
- Special version for DN 32 to DN 100 pumps: PN 16 flange (according to EN 1092-2) for PN 16 counter flange
- Plug-in position for optional extension with Wilo-IF‐Modules
- Standard thermal insulation for heating applications
Scope of delivery
- Pump
- Installation, Operation, and Maintenance Manual
Options
R1 version without differential pressure sensor
Duty chart
Pump curves


Product
Approved fluids (other fluids on request)
Heating water (in accordance with VDI 2035) |
• |
Water-glycol mixtures (for 20-40 vol.% glycol and fluid temperature ≤ 40 °C) |
• |
Cooling and cold water |
• |
Permitted field of application
Standard version for operating pressure pmax |
16 bar (up to +120 °C) bar |
Special version for operating pressure pmax |
- bar |
Temperature range at max. ambient temperature +40 °C |
-20...+140 °C (depending on the fluid) |
Max. ambient temperature |
+40 °C |
Installation in closed buildings |
• |
Outdoor installation |
- |
Pipe connections
Nominal connection diameters DN |
40 - 65 |
Materials
Pump housing |
EN-GJL-250 |
Lantern |
EN-GJL-250 |
Impeller |
PPS-GF40 |
Impeller (special version) |
– |
Pump shaft |
1.4122 |
Mechanical seal |
AQ1EGG |
Other mechanical seals |
On request |
Electrical connection
Mains connection |
3~380 V ±10%, 50/60 Hz |
Speed range |
rpm |
Motor/electronics
Motor technology |
EC motor |
Integrated full motor protection |
• |
Protection class |
IP 55 |
Insulation class |
F |
Emitted interference |
EN 61800-3 |
Interference resistance |
EN 61800-3 |
Residual-current protection device (RCD) |
• |
Installation options
Pipe installation (≤ 15 kW motor power) |
• |
Support-bracket mounting |
• |
Downloads

Number of pages | 212 |
PDF (18 MB)
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