Roots Universal RAI Blowers (URAI)
Howden Roots Universal RAI Blower (URAI)
Heavy duty, bi-lobe rotary blowers in a compact & sturdy design, engineered for continuous running with exceptional reliability.
- Cost effective design.
- Pressures to 15 psig (1034 mbar).
- Vacuums to 16” Hg (539 mbar).
- Flows to 2370 cfm (4026 m3/hr).
- Available with metric drive shaft.
- Range of Roots URAI blower frame sizes available.
Howden Universal RAI-J DSL Blower
DSL features are incorporated into the Universal RAI-J model for long life and quiet performance.
- All the Universal RAI (URAI) family of blowers feature detachable feet, allowing you to mount the blower into your custom system.
- Range of Roots URAI J DSL blower frame sizes available.
Dresser Howden Universal RAI DSL Blower
- Available with metric drive shaft and pipe connections.
- Range of Roots URAI DSL blower frame sizes available.
- This model features Dual Splash Lubrication (DSL) on both the gear end and drive end. Dual splash lube provides:
- More oil capacity.
- Cooler operation.
- Greater reliability.
Howden Roots SRB and SRE packages
Each standard packaged blower combines a ROOTS blower unit supplying oil-free air with an electric motor, vee-belt drive, intake filter/silencer, filter restriction indicator, discharge silencer, non-return valves & relief valves. The blower is mounted on a rigid baseplate and contained within a practical acoustic enclosure, which silences the machine to 75-80 dbA when measured under free-field conditions.
-
The SRB range covers pressures from 300 to 1000 mbar (1.5-15kW) with inlet volumes from 50m³/h.
-
The SRE range covers 300 mbar to 500 mbar (1.5kW to 7.5kW).
-
Pressure relief and non-return valves are supplied loose for installation into customer’s pipework.
-
The packages have hinged access with security locks.
Howden Universal RAI-J Blower
Incorporates Roots WHISPAIR* technology to reduce noise levels 3-5 dBA.
- Range of Roots URAI J blower frame sizes available.
Howden Dresser Universal RAI-G Blower
This model features mechanical seals that virtually eliminate leakage.
- 1/8” (0.3137 cm) NPT purge port for buffer gas applications.
- Range of Roots URAI G blower frame sizes available.
Why choose HR Blowers for your Universal RAI Blower needs?
- Many units already in stock.
- Quick delivery turnaround.
- Worldwide delivery available.
- All stock comes with a warranty.
HR Blowers also can supply a range of Roots URAI blower parts from across a range of manufacturers and can also help you with your installation and Universal RAI blower servicing needs.
|
Howden Universal RAI Series (US/Imperial) |
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|
Howden URAI Model |
BOM # or Part Number |
UK Part Number |
Flow Range |
Maximum PSIG |
Maximum Vac |
RPM Range |
Maximum Temprature |
Avail Configs |
Frame Size |
Inlet/Disc Conn |
Shaft Dia. |
Oil Horz |
Bare Weight lbs |
|
22 URAI |
65102020 |
22 URAI |
Upto 71 CFM |
12 PSI |
15″ Hg |
1530-5275 |
225°F |
B-L-T-R |
22 |
1″ NPT |
0.625″ |
6.1 oz |
32 |
|
24 URAI |
65103020 |
24 URAI |
Upto 148 CFM |
7 PSI |
15″ Hg |
1530-5275 |
210°F |
B-L-T-R |
24 |
2″ NPT |
0.625″ |
6.1 oz |
43 |
|
32 URAI |
71048020 |
32 URAI |
Upto 142 CFM |
15 PSI |
16″ Hg |
1090-3600 |
240°F |
B-L-T-R |
32 |
1.25″ NPT |
0.750″ |
10.5 oz |
69 |
|
33 URAI |
65105020 |
33 URAI |
Upto 195 CFM |
12 PSI |
15″ Hg |
1090-3600 |
225°F |
B-L-T-R |
33 |
2″ NPT |
0.750″ |
10.5 oz |
74 |
|
36 URAI |
65106020 |
36 URAI |
Upto 330 CFM |
7 PSI |
15″ Hg |
1090-3600 |
225°F |
B-L-T-R |
36 |
2.5″ NPT |
0.750″ |
10.5 oz |
102 |
|
42 URAI |
65108020 |
42 URAI |
Upto 330 CFM |
15 PSI |
16″ Hg |
884-3600 |
240°F |
B-L-T-R |
42 |
1.5″ NPT |
0.875″ |
14.5 oz |
88 |
|
45 URAI |
65109020 |
45 URAI |
Upto 395 CFM |
10 PSI |
15″ Hg |
884-3600 |
225°F |
B-L-T-R |
45 |
2.5″ NPT |
0.875″ |
14.5 oz |
109 |
|
47 URAI |
65110020 |
47 URAI |
Upto 523 CFM |
7 PSI |
15″ Hg |
884-3600 |
225°F |
B-L-T-R |
47 |
3″ NPT |
0.875″ |
14.5 oz |
128 |
|
53 URAI |
65112020 |
53 URAI |
Upto 343 CFM |
7 PSI |
15″ Hg |
763-2850 |
225°F |
B-L-T-R |
53 |
2.5″ NPT |
1.125″ |
27.6 oz |
143 |
|
56 URAI |
65113020 |
56 URAI |
Upto 580 CFM |
13 PSI |
15″ Hg |
763-2850 |
225°F |
B-L-T-R |
56 |
4″ NPT |
1.125″ |
27.6 oz |
170 |
|
59 URAI |
65114020 |
59 URAI |
Upto 857 CFM |
7 PSI |
15″ Hg |
763-2850 |
225°F |
B-L-T-R |
59 |
4″ NPT |
1.125″ |
27.6 oz |
204 |
|
65 URAI |
65116020 |
65 URAI |
Upto 526 CFM |
15 PSI |
16″ Hg |
636-2350 |
250°F |
B-L-T-R |
65 |
3″ NPT |
1.375″ |
52.1 oz |
245 |
|
68 URAI |
65117020 |
68 URAI |
Upto 845 CFM |
14 PSI |
16″ Hg |
636-2350 |
240°F |
B-L-T-R |
68 |
5″ NPT |
1.375″ |
52.1 oz |
285 |
|
615 URAI |
65118020 |
615 URAI |
Upto 1583 CFM |
7 PSI |
12″ Hg |
636-2350 |
130°F |
B-L-T-R |
615 |
6F |
1.375″ |
52.1 oz |
425 |
|
76 URAI |
65120020 |
76 URAI |
Upto 765 CFM |
15 PSI |
16″ Hg |
545-2050 |
250°F |
B-L-T-R |
76 |
4″ NPT |
1.562″ |
59.5 oz |
400 |
|
711 URAI |
65121020 |
711 URAI |
Upto 1413 CFM |
10 PSI |
16″ Hg |
545-2050 |
225°F |
B-L-T-R |
711 |
6F |
1.562″ |
59.5 oz |
530 |
|
718 URAI |
65122020 |
718 URAI |
Upto 2316 CFM |
7 PSI |
12″ Hg |
545-2050 |
130°F |
B-L-T-R |
718 |
8F |
1.562″ |
59.5 oz |
650 |
|
Howden Univeral RAI Series (METRIC) |
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|
Howden URAI Model |
BOM # or Part Number |
UK Part# |
Flow Range |
Maximum mBar(g) |
Maximum Vac mBar(g) |
RPM Range |
Maximum Temprature |
Avail Configs |
Frame Size |
Inlet/Disc Conn |
Shaft Dia. |
Oil Horz |
Bare Weight (KG) |
|
22 URAI |
651020M0 |
AU-RAI22M |
830 |
500 |
5275 |
B-L-T-R |
22 |
1″ BSP |
16 mm |
15 |
|||
|
24 URAI |
651030M0 |
AU-RAI24M |
480 |
500 |
5275 |
B-L-T-R |
24 |
2″ BSP |
16 mm |
20 |
|||
|
32 URAI |
710480M0 |
AU-RAI32M |
1030 |
540 |
3550 |
B-L-T-R |
32 |
1 1/4″ BSP |
19 mm |
31 |
|||
|
33 URAI |
651050M0 |
AU-RAI33M |
830 |
500 |
3550 |
B-L-T-R |
33 |
2″ BSP |
19 mm |
34 |
|||
|
36 URAI |
651060M0 |
AU-RAI36M |
480 |
500 |
3550 |
B-L-T-R |
36 |
2 1/2″ BSP |
19 mm |
46 |
|||
|
42 URAI |
651080M0 |
AU-RAI42M |
1030 |
540 |
3550 |
B-L-T-R |
42 |
1 1/2″ BSP |
24 mm |
40 |
|||
|
45 URAI |
651090M0 |
AU-RAI45M |
690 |
500 |
3550 |
B-L-T-R |
45 |
2 1/2″ BSP |
24 mm |
49 |
|||
|
47 URAI |
651100M0 |
AU-RAI47M |
480 |
500 |
3550 |
B-L-T-R |
47 |
3″ BSP |
24 mm |
58 |
|||
|
53 URAI |
651120M0 |
AU-RAI53M |
480 |
500 |
2850 |
B-L-T-R |
53 |
2 1/2″ BSP |
28 mm |
54 |
|||
|
56 URAI |
651130M0 |
AU-RAI56M |
900 |
500 |
2850 |
B-L-T-R |
56 |
4″ BSP |
28 mm |
77 |
|||
|
59 URAI |
651140M0 |
AU-RAI59M |
480 |
500 |
2850 |
B-L-T-R |
59 |
4″ BSP |
28 mm |
93 |
|||
|
65 URAI |
T30392060 |
AU-RAI65M |
1030 |
540 |
2350 |
B-L-T-R |
65 |
3″ BSP |
32 mm |
111 |
|||
|
68 URAI |
T30394060 |
AU-RAI68M |
970 |
540 |
2350 |
B-L-T-R |
68 |
5″ BSP |
32 mm |
129 |
|||
|
615 URAI |
T30390060 |
AU-RAI615M |
480 |
410 |
2350 |
B-L-T-R |
615 |
150 NP10 |
32 mm |
193 |
|||
|
76 URAI |
T30396060 |
AU-RAI76M |
1030 |
540 |
2050 |
B-L-T-R |
76 |
4″ BSP |
38 mm |
181 |
|||
|
711 URAI |
T30398060 |
AU-RAI711M |
690 |
540 |
2050 |
B-L-T-R |
711 |
150 NP10 |
38 mm |
240 |
|||
|
718 URAI |
T30400060 |
AU-RAI718M |
480 |
410 |
2060 |
B-L-T-R |
718 |
200 NP10 |
38 mm |
295 |
|||
|
Howden Universal RAI®-DSL Series |
US or Imperial |
Metric |
||||||||
|
Howden URAI-DSL Model |
BOM # or Part Number |
UK Order Number |
Avail Configs |
Frame Size |
Inlet/Disc Conn |
Shaft Dia. |
Bare Weight |
Inlet/Disc Conn |
Shaft Dia. |
Bare Weight KG |
|
URAI-DSL 32 |
T30378020 |
URAI-DSL 32 |
B-L-T-R |
32 |
1.25″ NPT |
0.750″ |
72 |
|||
|
URAI-DSL 33 |
T30379020 |
URAI-DSL 33 |
B-L-T-R |
33 |
2″ NPT |
0.750″ |
77 |
|||
|
URAI-DSL 36 |
T30380020 |
URAI-DSL 36 |
B-L-T-R |
36 |
2.5″ NPT |
0.750″ |
105 |
|||
|
URAI-DSL 42 |
T30352020 |
URAI-DSL 42 |
B-L-T-R |
42 |
1.5″ NPT |
0.875″ |
92 |
|||
|
URAI-DSL 45 |
T30353020 |
URAI-DSL 45 |
B-L-T-R |
45 |
2.5″ NPT |
0.875″ |
113 |
|||
|
URAI-DSL 47 |
T30354020 |
URAI-DSL 47 |
B-L-T-R |
47 |
3″ NPT |
0.875″ |
132 |
|||
|
URAI-DSL 53 |
T30359020 |
URAI-DSL 53 |
B-L-T-R |
53 |
2.5″ NPT |
1.125″ |
148 |
|||
|
URAI-DSL 56 |
T30360020 |
URAI-DSL 56 |
B-L-T-R |
56 |
4″ NPT |
1.125″ |
175 |
|||
|
URAI-DSL 59 |
T30361020 |
URAI-DSL 59 |
B-L-T-R |
59 |
4″ NPT |
1.125″ |
209 |
|||
|
URAI-DSL 65 |
T30384020 |
URAI-DSL 65 |
B-L-T-R |
65 |
3″ NPT |
1.375″ |
250 |
|||
|
URAI-DSL 68 |
T30385020 |
URAI-DSL 68 |
B-L-T-R |
68 |
5″ NPT |
1.375″ |
290 |
|||
|
URAI-DSL 615 |
T30386020 |
URAI-DSL 615 |
B-L-T-R |
615 |
6F |
1.375″ |
430 |
|||
|
Howden Universal RAI®-DSL Series |
US or Imperial |
Metric |
||||||||
|
Howden URAI-DSL Model |
BOM # or Part Number |
UK Order Number |
Avail Configs |
Frame Size |
Inlet/Disc Conn |
Shaft Dia. |
Bare Weight KG |
|||
|
URAI-M-DSL 32 |
AT304630ML |
URAI-M-DSL 32 |
B-L-T-R |
32 |
1 1/4″ BSP |
19 mm |
33 |
|||
|
URAI-M-DSL 33 |
AT304640ML |
URAI-M-DSL 33 |
B-L-T-R |
33 |
2″ BSP |
19 mm |
35 |
|||
|
URAI-M-DSL 36 |
AT304650ML |
URAI-M-DSL 36 |
B-L-T-R |
36 |
2 1/2″ BSP |
19 mm |
48 |
|||
|
URAI-M-DSL 42 |
AT304510ML |
URAI-M-DSL 42 |
B-L-T-R |
42 |
1 1/2″ BSP |
24 mm |
42 |
|||
|
URAI-M-DSL 45 |
AT304520ML |
URAI-M-DSL 45 |
B-L-T-R |
45 |
2 1/2″ BSP |
24 mm |
52 |
|||
|
URAI-M-DSL 47 |
AT304530ML |
URAI-M-DSL 47 |
B-L-T-R |
47 |
3″ BSP |
24 mm |
60 |
|||
|
URAI-M-DSL 53 |
AT304590ML |
URAI-M-DSL 53 |
B-L-T-R |
53 |
2 1/2″ BSP |
28 mm |
68 |
|||
|
URAI-M-DSL 56 |
AT304600ML |
URAI-M-DSL 56 |
B-L-T-R |
56 |
4″ BSP |
28 mm |
80 |
|||
|
URAI-M-DSL 59 |
AT304610ML |
URAI-M-DSL 59 |
B-L-T-R |
59 |
4″ BSP |
28 mm |
95 |
|||
|
Howden Universal RAI®-J Series |
US or Imperial |
Metric |
||||||||
|
Howden URAI-J Model |
BOM # or Part Number |
UK Order Number |
Avail Configs |
Frame Size |
Inlet/Disc Conn |
Shaft Dia. |
Bare Weight |
Inlet/Disc Conn |
Shaft Dia. Mm |
Bare Weight KG |
|
URAI-J 33 |
74065020 |
74065020 |
BL-BR-LB-LT-RB-RT-TL-TR |
33 |
2″ NPT |
0.750″ |
84 |
NA |
NA |
NA |
|
URAI-J 36 |
74086020 |
74086020 |
BL-BR-LB-LT-RB-RT-TL-TR |
36 |
2.5″ NPT |
0.750″ |
112 |
NA |
NA |
NA |
|
URAI-J 45 |
74066020 |
74066020 |
BL-BR-LB-LT-RB-RT-TL-TR |
45 |
2.5″ NPT |
0.875″ |
119 |
NA |
NA |
NA |
|
URAI-J 47 |
74087020 |
74087020 |
BL-BR-LB-LT-RB-RT-TL-TR |
47 |
3″ NPT |
0.875″ |
138 |
NA |
NA |
NA |
|
URAI-J 56 |
74067020 |
74067020 |
BL-BR-LB-LT-RB-RT-TL-TR |
56 |
4″ NPT |
1.125″ |
180 |
NA |
NA |
NA |
|
UK & Europe Metric |
US or Imperial |
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|
Howden URAI – M Model |
BOM# |
UK part~ |
HR Blowers Part No. |
Avail Configs |
Frame Size |
Inlet/Disc Conn |
Shaft Dia. (mm) |
Bare Weight (kg) |
Howden USA URAI – M Model |
BOM# |
UK part~ |
Inlet/Disc Conn |
Shaft Dia. (mm) |
Bare Weight (kg) |
|
URAI22M |
651020M0 |
AU-RAI22M |
URAI22M |
B-L-T-R |
22 |
1″ BSP |
16 j6 |
15 |
22 URA-I |
65102020 |
1.0 NPT |
0.625″ |
||
|
URAI24M |
651030M0 |
AU-RAI24M |
URAI24M |
B-L-T-R |
24 |
2″ BSP |
16 j6 |
20 |
24 URA-I |
65103020 |
2.0 NPT |
0.625″ |
||
|
URAI32M |
710480M0 |
AU-RAI32M |
URAI32M |
B-L-T-R |
32 |
1 1/4″ BSP |
19 j6 |
31 |
32 URA-I |
71048020 |
1.25 NPT |
0.750″ |
||
|
URAI33M |
651050M0 |
AU-RAI33M |
URAI33M |
B-L-T-R |
33 |
2″ BSP |
19 j6 |
34 |
33 URA-I |
65105020 |
2.0 NPT |
0.750″ |
||
|
URAI36M |
651060M0 |
AU-RAI36M |
URAI36M |
B-L-T-R |
36 |
2 1/2″ BSP |
19 j6 |
46 |
36 URA-I |
65106020 |
2.5 NPT |
0.750″ |
||
|
URAI42M |
651080M0 |
AU-RAI42M |
URAI42M |
B-L-T-R |
42 |
1 1/2″ BSP |
24 j6 |
40 |
42 URA-I |
65108020 |
1.5 npt |
0.875″ |
||
|
URAI45M |
651090M0 |
AU-RAI45M |
URAI45M |
B-L-T-R |
45 |
2 1/2 BSP |
24 j6 |
49 |
45 URA-I |
65109020 |
2.5 npt |
0.875″ |
||
|
URAI47M |
651100M0 |
AU-RAI47M |
URAI47M |
B-L-T-R |
47 |
3″ BSP |
24 j6 |
58 |
47 URA-I |
65110020 |
3.0 NPT |
0.875″ |
||
|
URAI53M |
651120M0 |
AU-RAI53M |
URAI53M |
B-L-T-R |
53 |
2 1/2″ BSP |
28 j6 |
65 |
53 URA-I |
65112020 |
2.5 NPT |
1.125″ |
||
|
URAI56M |
651130M0 |
AU-RAI56M |
URAI56M |
B-L-T-R |
56 |
4″ BSP |
28 j6 |
77 |
56 URA-I |
65113020 |
4.0 NPT |
1.125″ |
||
|
URAI59M |
651140M0 |
AU-RAI59M |
URAI59M |
B-L-T-R |
59 |
4″ BSP |
28 j6 |
93 |
59 URA-I |
65114020 |
4.0 NPT |
1.125″ |
||
|
URAI65M |
T30392060 |
AU-RAI65M |
URAI65M |
B-L-T-R |
65 |
3″ BSP |
32 k6 |
111 |
65 URA-I |
65116020 |
3.0 NPT |
1.375″ |
||
|
URAI68M |
T30394060 |
AU-RAI68M |
URAI68M |
B-L-T-R |
68 |
5″ BSP |
32 k6 |
129 |
68 URA-I |
65117020 |
5.0 NPT |
1.375″ |
||
|
URAI615M |
T30390060 |
AU-RAI615M |
URAI615M |
B-L-T-R |
615 |
150NP10 |
32 k6 |
193 |
615 URA-I |
65118020 |
6.0 FLG |
1.375″ |
||
|
URAI76M |
T30396060 |
AU-RAI76M |
URAI76M |
B-L-T-R |
76 |
4″ BSP |
38 k6 |
181 |
76 URA-I |
65120020 |
4.0 NPT |
1.562″ |
||
|
URAI711M |
T30398060 |
AU-RAI711M |
URAI711M |
B-L-T-R |
711 |
150 NP10 |
38 k6 |
240 |
711 URA-I |
65121020 |
6.0 FLG |
1.562″ |
||
|
URAI718M |
T30400060 |
AU-RAI718M |
URAI718M |
B-L-T-R |
718 |
200 NP10 |
38 k6 |
295 |
718 URA-I |
65122020 |
8.0 FLG |
1.562″ |
||
|
Howden Universal RAI®-DSL J Series |
US or Imperial |
Metric |
||||||||
|
Howden URAI-DSL J Model |
BOM # or Part Number |
UK Order Number |
Avail Configs |
Frame Size |
Inlet/Disc Conn |
Shaft Dia. |
Bare Weight |
Inlet/Disc Conn |
Shaft Dia. |
Bare Weight KG |
|
URAI-DSL J 33 |
T30417020 |
T30417020 |
BL-BR-LB-LT-RB-RT-TL-TR |
33 |
2″ NPT |
0.750″ |
87 |
N/A |
N/A |
N/A |
|
URAI-DSL J 36 |
T30418020 |
T30418020 |
BL-BR-LB-LT-RB-RT-TL-TR |
36 |
2.5″ NPT |
0.750″ |
115 |
N/A |
N/A |
N/A |
|
URAI-DSL J 45 |
T30410020 |
T30410020 |
BL-BR-LB-LT-RB-RT-TL-TR |
45 |
2.5″ NPT |
0.875″ |
122 |
N/A |
N/A |
N/A |
|
URAI-DSL J 47 |
T30412020 |
T30412020 |
BL-BR-LB-LT-RB-RT-TL-TR |
47 |
3″ NPT |
0.875″ |
141 |
N/A |
N/A |
N/A |
|
URAI-DSL J 56 |
T30415020 |
T30415020 |
BL-BR-LB-LT-RB-RT-TL-TR |
56 |
4″ NPT |
1.125″ |
185 |
N/A |
N/A |
N/A |
|
Howden Universal RAI®-G Series |
US or Imperial |
Metric |
||||||||
|
Howden URAI-G Model |
BOM # or Part Number |
UK Order Number |
Avail Configs |
Frame Size |
Inlet/Disc Conn |
Shaft Dia. |
Bare Weight |
Inlet/Disc Conn |
Shaft Dia. |
Bare Weight KG |
|
URAI-G 32 |
710480G0 |
710480G0 |
B-L-T-R |
32 |
1.25″ NPT |
0.750″ |
69 |
N/A |
N/A |
N/A |
|
URAI-G 33 |
651050G0 |
651050G0 |
B-L-T-R |
33 |
2″ NPT |
0.750″ |
74 |
N/A |
N/A |
N/A |
|
URAI-G 36 |
651060G0 |
651060G0 |
B-L-T-R |
36 |
2.5″ NPT |
0.750″ |
102 |
N/A |
N/A |
N/A |
|
URAI-G 42 |
651080G0 |
651080G0 |
B-L-T-R |
42 |
1.5″ NPT |
0.875″ |
88 |
N/A |
N/A |
N/A |
|
URAI-G 45 |
651090G0 |
651090G0 |
B-L-T-R |
45 |
2.5″ NPT |
0.875″ |
109 |
N/A |
N/A |
N/A |
|
URAI-G 47 |
651100G0 |
651100G0 |
B-L-T-R |
47 |
3″ NPT |
0.875″ |
128 |
N/A |
N/A |
N/A |
|
URAI-G 53 |
651120G0 |
651120G0 |
B-L-T-R |
53 |
2.5″ NPT |
0.875″ |
143 |
N/A |
N/A |
N/A |
|
URAI-G 56 |
651130G0 |
651130G0 |
B-L-T-R |
56 |
4″ NPT |
1.125″ |
170 |
N/A |
N/A |
N/A |
|
URAI-G 59 |
651140G0 |
651140G0 |
B-L-T-R |
59 |
4″ NPT |
1.125″ |
204 |
N/A |
N/A |
N/A |
|
URAI-G 65 |
651160G0 |
651160G0 |
B-L-T-R |
65 |
3″ NPT |
1.375″ |
245 |
N/A |
N/A |
N/A |
|
URAI-G 68 |
651170G0 |
651170G0 |
B-L-T-R |
68 |
5″ NPT |
1.375″ |
285 |
N/A |
N/A |
N/A |
|
URAI-G 615 |
651180G0 |
651180G0 |
B-L-T-R |
615 |
6F |
1.375″ |
425 |
N/A |
N/A |
N/A |
