Roots URAI Performance Data

The Roots Universal RAI was first introduced in 1985 as a replacement for the Roots AF and RAI series of positive displacement blowers and vacuum pumps.

Roots also took aim at Sutorbilt's California Series positive displacement blower at that time by designing the Roots URAI to be a drop in replacement. Both Roots and Sutorbilt made product frame sizes that were very similar.

The Universal RAI introduced "Universal" mounting feet that permitted the blower to be mounted in four different orientations. The Roots AF and RAI had their mounting feet cast into the headplates which meant the distributor or factory would have to stock your exact orientation for replacement. This meant delays in getting the right unit to the customer. Sutorbilt later adopted this same feature on their California Legend® Series unit.

Frame	Conn	Max RPM	cfr	Slip	Max ΔT	Shaft Dia	Max ΔP	Max Vac
22	1" NPT	5275	0.0160	510	225	0.625	12	15
24	2" NPT	5275	0.0320	405	210	0.625	7	15
32	1-1/4" NPT	3600	0.0450	280	240	0.75	15	15
33	2" NPT	3600	0.0616	267	225	0.75	12	15
36	2-1/2" NPT	3600	0.102	228	225	0.75	7	15
42	1-1/2" NPT	3600	0.0605	233	240	0.875	15	15
45	2-1/2" NPT	3600	0.121	209	225	0.875	10	15
47	3" NPT	3600	0.1595	200	225	0.875	7	15
53	2-1/2" NPT	2850	0.1318	157	225	1.125	15	15
56	4" NPT	2850	0.221	142	225	1.125	13	15
59	4" NPT	2850	0.323	122	225	1.125	7	15
65	3" NPT	2350	0.246	132	250	1.375	15	16
68	5" NPT	2350	0.395	132	240	1.375	14	16
615	6" FLG	2350	0.74	132	130	1.375	7	12
76	4" NPT	2050	0.405	100	250	1.562	15	16
711	6" FLG	2050	0.738	85	225	1.562	10	16
718	8" FLG	2050	1.2	75	130	1.562	6	12

REP is your source for Roots URAI blowers as well as replacement parts, repair work, noise enclosures and custom solutions from our team of industry experts. Contact us today for the best Roots URAI equipment and service.

Roots Universal RAI®


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