JETLINE-315 ECOWATT is an in-line duct fan from Ventur (Venture Industries Group) for general ventilation. The compact, low-profile housing is galvanised steel with a supplied mounting bracket for flexible positioning. An EC motor (230 V, 50/60 Hz, IP44) enables 100% variable speed via the built-in potentiometer or an external 0–10 V signal; thermal protection is included. The 315 model has a 310 mm circular duct connection (ØD). A high‑performance impeller, guide vanes and outlet diffuser in injection‑moulded plastic, plus rubber gaskets and a silent‑block between motor and bracket, help reduce vibration and noise. Maximum free‑airflow for JETLINE‑315 ECOWATT is 1,570 m³/h, and the working temperature range is −20 °C to +40 °C.