Elta VL315 Inline Duct Fan Single Phase AC - 315mm/12"

The Elta Versaline VL315 is an all metal inline centrifugal fan for 315mm circular ducting, moving up to 1231 m³/h in free air and rated in the Elta datasheet to 400 Pa. It is built for low airflow, medium pressure systems and its compact casing suits ceiling void mounting.The galvanised steel casing comes with integral mounting brackets and 25mm spigots for flexible or rigid duct. The single phase motor is IP44 with Class F insulation, sealed for life bearings and a non self resetting thermal cut-out, and arrives with a flying lead and UK 3 pin plug. It has 3 speeds wound into the motor, giving 1231, 1163 and 1076 m³/h in free air. Elta give a 12 month warranty. 1 Phase AC Motor Up to 1231 m³/h Speed Controllable What it is best used forThe largest Versaline, for 315mm ductwork in restaurants, larger toilet blocks, entrance halls and equipment cooling, moving up to 1231 m³/h and still about 1019 m³/h at 100 Pa.It is for indoor use only, and because of its non self resetting cut-out Elta say it must not be fed through a timer or from a circuit that is regularly switched on and off. For a light switch or timer run bathroom fan, choose a fan designed for intermittent switching instead.Why choose this over alternativesA backward curved centrifugal impeller holds its airflow against duct resistance far better than an axial in line fan of the same size, and it is non overloading and self cleaning. The all metal casing is a sturdier choice than plastic mixed flow units in plant spaces and ceiling voids.If the duct is 250mm, the Elta VL250 moves up to 835 m³/h. Beyond 1231 m³/h, or above 400 Pa, step up to an inline mixed flow fan.Installation notes Fix the fan with the bracket set supplied. It can be mounted at any angle, but a vertical outlet needs a weatherproof cover on the ducted outlet. Fit at least 1m of straight duct, the same diameter as the spigots, on both the inlet and outlet. Elta recommend cushioned clamps to cut noise transmission. Leave a minimum of 150mm c