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Wilo Stratos 40/1-12

Inline Smart Circulator

Identification
ManufacturerWilo
SeriesStratos
Model / sizeStratos 40/1-12
Pump typeInline Smart Circulator
Spec codePS-IC-008
Duty & power
Min flow2 m³/hr
Max flow15 m³/hr
Min head3 m
Max head25 m
Max power1.5 kW
NPSHr0.6 m
Efficiency at BEP45 %
Drive & electrical
Starting methodDOL (Direct On Line) — up to 3kW
VFD compatibleYes (built-in EC motor)
Motor IE classIE3 (mandatory EU/MEPS) / IE4 optional
Insulation classClass F (155°C)
IP ratingIP44
Materials & sealing
CasingCast Iron
ImpellerComposite
ShaftSS
Seal typeMechanical Seal
API seal planPlan 11 (standard) / Plan 13 (vent on vertical)
Application
ServicePotable Water, HVAC
Key featuresECM, Bluetooth, auto adapt

← Back to the Pump Selector

Pump specification, curve, seal plan, maintenance & troubleshooting

A complete, shareable page for a single pump. It plots the performance curve (head, efficiency and NPSHr against flow, with the best-efficiency point marked, or dosing flow against stroke), decodes the API 682 / ISO 21049 mechanical seal plan, and lists the full specification — duty and operating range, drive and motor, materials of construction, build and reliability, connections, weight and certifications. Pop-up panels give the type-specific preventive-maintenance schedule (daily to annual tasks with procedures) and a troubleshooting guide (symptoms, probable causes and recommended solutions).

Run a centrifugal pump near its BEP and keep dosing pumps in their recommended stroke band. Data is from the engineering reference database — confirm against the manufacturer's certified curve before procurement.

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