Series U/AR

The U/AR series centrifugal fans are designed to convey both fumes and air, even slightly dusty, at  temperatures of up to a maximum 80°C. These fans are used for ventilation and conditioning, and generally when systems require high flow rates.
The steel sheet spiral casings are of adequately thickness and have been carefully rimmed and welded. These fans have a base for the motor and the discharge angle can be adjusted in 45° steps by rotating either clockwise RD or counter-clockwise LG (see discharge direction table).
The welded steel sheet impellers have high performance forward-curved blades. Each impeller has been perfectly balanced, both statically and dynamically, and is directly connected to the motor shaft.
The motors installed are asynchronous, three-phase or single-phase, B3, self-ventilated, with IP55 protection, designed for continuous service and are UNEL and IEC compliant.


ACCESSORIES

	RP		rinlet protection net
	GA		intaking vibration-damping joint
	RA		intaking joint
	RF		inlet flanged fitting
	CA		inlet counter-flange
	FL		inlet filter
	SA		inlet silencer
	SF		throttle valve
	RM		outlet protection net
	GM		feed vibration-damping joint
	CM		outlet counter-flange
	QT		outlet square-round joint
	SM		outlet silencer
	TS		discharge plug
	PI		inspection door
	AV		vibration dampers

SPECIAL VERSIONS

	AI		made of stainless steel AISI 304 to extract corrosive fumes
	AS		anti-spark version in accordance with ANIMA-COAER standards (table NV105)
	HZ		manufactured to work at Hz. 60
	HT		conveyed fluid temperature up to a maximum of 250°C (this version is made with longer shaft motor and extra cooling fan)
	SB		arrangement 5 with motor type B5 or B3/B5 without motor support base
	TH		high protection for use in tropical climate with high degree of humidity
	TR		belt drive, 9 or 12 arrangement