Centrifugal Fans range VB

GENERAL TECHNICAL DATA

The centrifugal fans are made of powder painted (RAL 6019), sheet steel and are completed with radial impeller fixed on electric motor. The impeller and the motor are statically and dynamically balanced and this ensure a long exploitation term and low level of vibrations.

His compact design make this fans convenient for assembly in fan sections.

The normal production is designed for 220/380 V ± 5% and frequency 50 Hz, class "B", level of protection IP44 or IP54 - according DIN IEC 34, part 5, flange-mounted construction - according DIN IEC 34, part 7.

Optional: flexible connectors, air filters, heaters, attenuators etc.

Kram reserves the right to make any dimensional design changes in accordance with their improvement program

DIMENSIONS

Type / haut.Axe motor	m mm	e mm	f mm	o mm	h mm	h₁ mm	h₂ mm	p mm	L mm	R mm	d_s mm
VB-200/71 VB-200/80	165	168	172	130	419	216	297	308 346	440	256	17
VB-240/71 VB-240/80	204	201	192	142	473	236	334	321 358	440	340	17
VB-250/71 VB-250/80 VB-250/90	204	207	193	145	483	237	337	324 362 382	500	340	17
VB-280/80 VB-280/90 VB-280/100	224	232	214	158	531	258	356	374 434 464	550	340	17
VB-315/80 VB-315/90 VB-315/100	231	294	252	164	648	295	448	367 428 458	610	380	17
VB-355/90 VB-355/100 VB-355/112	271	294	262	181	647	306	426	458 488 528	644	420	17

FITTING DIMENSIONS

Type	A mm	B mm	a mm	b mm	d₁ mm	d mm
VB-200	134	202	154	222	9	250
VB-240	158	236	178	256	9	300
VB-250	165	240	185	260	9	300
VB-280	190	275	210	295	9	355
VB-315	203	357	223	377	9	400
VB-355	238	400	258	420	9	450

The centrifugal fans - range VB with respect to direction of rotation of impeller, are manufactured left (L) or right (D) and the position of the housing can be changed by step of 90 degrees (view from the side of the inlet flange).

CHARACTERISTICS:

TYPE KEY

The various types and type-dimensions of fans bear the following marking: Class, Nominal diameter of impeller, Art and version of impeller, Current type (Tree phase or Single phase), Number of poles and Version.

FOR EXAMPLE: