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RUBBER VIBRATION /
SOUND ABSORBERS
"Super-Quiet"
Styles 3150 and 3250 |
|
 |
|
PERCENTAGE OF
REDUCTION OF VIBRATION INPUT WITH FREQUENCY AND PRESSURE AS
COMPARED TO STEEL PIPE |
|
Center Freq. Hz |
8" I.D. x 24" F-F
Vibration Joint |
|
10 psig |
50 psig |
80 psig |
| 440 |
87% |
91% |
93% |
| 68 |
95% |
96% |
99% |
| 125 |
98% |
99% |
99% |
| 250 |
96% |
97% |
99% |
| 500 |
91% |
93% |
94% |
| 1000 |
82% |
91% |
96% |
| 2000 |
99% |
99% |
99% |
| 4000 |
99% |
99% |
99% |
| 8000 |
97% |
97% |
98% |
|
Example: If a
steel piping system had a major vibration frequency of 1,000 Hz
at 50 PSIG and and 8" rubber expansion joint was installed in
the pipeline, the percentage of reduction of vibration would be
96%
Note: Above
data taken from Fluid Sealing Association Handbook. |
|
|
UNAFLEX®
"SUPER-QUIET" Styles 3150 and 3250
Vibration and Sound Absorbers are designed with molded rubber
flanged ends with bolt holes that accommodate standard steel
flanges. They are furnished with or without helical wire
reinforcement. Special tubes can be compounded to meet unique
service conditions in either suction or discharge applications.
|
SPECIFY UNAFLEX7
FLEXIBLE CONNECTORS |
STYLE
3150
STYLE 3250
STYLE3150HT
STYLE 3250HT |
150#
W.P.
250# W.P.
150# W.P.
250# W.P. |
180ºF
180ºF
250ºF
250ºF |
|
|
Joint Size I.D. (in.) |
Face to Face |
STYLE 3150 (150 psi U.S.A.
Drilling |
Style 3250 (250 psi U.S.A.
Drilling) |
|
Min. (in.) |
Max. (in.) |
Ring I.D. (in.) |
Flange |
Bolt circle diam. (in.) |
Bolt Holes |
Ring
I.D.
(in.) |
Flange |
Bolt circle diam. (in.). |
Bolt Holes |
|
Diam. (in.) |
Thickness (in.) |
No. |
Diam. (in.) |
Diam.
(in.) |
Thick
(in.) |
No. |
Diam.
(in.) |
|
1 1/2 |
12 |
24 |
2 7/8 |
5 |
11/16 |
3-7/8 |
4 |
5/8 |
2-7/8 |
6-1/8 |
23/32 |
4-1/2 |
4 |
7/8 |
|
2 |
12 |
24 |
3-5/8 |
6 |
11/16 |
3-3/4 |
4 |
3/4 |
3-5/8 |
6-1/2 |
23/32 |
5 |
8 |
3/4 |
|
3 |
12 |
36 |
4-5/8 |
7-1/2 |
27/32 |
6 |
4 |
3/4 |
4-5/8 |
8-1/4 |
27/32 |
6-5/8 |
8 |
7/8 |
| 4 |
12 |
36 |
5-7/8 |
9 |
27/32 |
7-1/2 |
8 |
3/4 |
5-7/8 |
10 |
7/8 |
7-7/8 |
8 |
7/8 |
| 5 |
12 |
36 |
6-7/8 |
10 |
15/16 |
8-1/2 |
8 |
7/8 |
6-7/8 |
11 |
15/16 |
9-1/4 |
8 |
7/8 |
| 6 |
18 |
36 |
7-7/8 |
11 |
31/32 |
9-1/2 |
8 |
7/8 |
7-7/8 |
12-1/2 |
15/16 |
10-5/8 |
12 |
7/8 |
|
8 |
24 |
48 |
9-7/8 |
13-1/2 |
31/32 |
11-3/4 |
8 |
7/8 |
9-7/8 |
15 |
1-1/16 |
13 |
12 |
1 |
|
10 |
24 |
48 |
12-1/8 |
16 |
1-3/16 |
14-1/4 |
12 |
1 |
12-1/8 |
17-1/2 |
1-11/32 |
15-1/4 |
16 |
1-1/8 |
|
12 |
24 |
48 |
14-1/2 |
19 |
1-7/32 |
17 |
12 |
1 |
14-1/2 |
20-1/2 |
1-11/32 |
17-3/4 |
16 |
1-1/4 |
|
IMPORTANT: UNAFLEX®
Vibration and Sound Absorbers are not designed to accommodate the
movement in a piping system caused by temperature change or other
conditions. See Spool-Type Expansion Joints for such applications. |
|
 |
UNAFLEX® "SUPER-QUIET" Styles
2150 and 2250 Vibration and Sound Absorbers are specially designed
lengths of rubber pipe with factory attached ferrules for pipes and
other connections involving standard IPT. They eliminate vibration
between pump and pipe line either for suction or discharge. |
|
FOR WORKING
PRESSURES TO 150 PSI |
| |
For Water Service to 180ºF |
For Water Service from 180 to 250ºF
Max |
|
Ferruled Coupling |
2150 |
2150
H.T. |
|
Flanged End |
3150 |
3150
H.T. |
|
|
FOR WORKING PRESSURES TO 250 PSI |
| |
For Water Service to 180ºF |
For Water Service from 180 to 250ºF
Max |
|
Ferruled Coupling |
2250 |
2250
H.T. |
|
Flanged End |
3250 |
3250
H.T. |
|
|
Pipe Size I.D. (in.) |
Stand overall length (in) |
Pipe Size I.D. (in.) |
Stand. overall length (in) |
|
3/4 |
12 |
2 |
24 |
|
1 |
18 |
2-1/2 |
24 |
|
1-1/4 |
18 |
3 |
36 |
|
1-1/2 |
18 |
4 |
36 |
|
|
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