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STYLES 3150 / 3250
The UNA-FLEX “SUPER-QUIET” rubber vibration/sound absorbers are specially designed with molded rubber flanged ends with bolt holes to accommodate the standard steel flanges. This UNA-FLEX “SUPER-QUIET” vibration and sound absorber will be furnished with/or without helical wire reinforcement. For either suction or discharge applications, special tubes can be compounded to meet your unique service conditions.
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SPECIFY UNAFLEX7 FLEXIBLE CONNECTORS |
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STYLE 3150
STYLE 3250 STYLE3150HT STYLE 3250HT |
150# W.P.
250# W.P. 150# W.P. 250# W.P. |
180ºF
180ºF 250ºF 250ºF |
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PERCENTAGE OF REDUCTION OF VIBRATION INPUT WITH FREQUENCY AND PRESSURE AS COMPARED TO STEEL PIPE |
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Center Freq. Hz
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8" I.D. x 24" F-F
Vibration Joint |
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10 psig
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50 psig
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80 psig
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440
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87%
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91%
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93%
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68
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95%
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96%
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99%
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125
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98%
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99%
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99%
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250
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96%
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97%
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99%
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500
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91%
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93%
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94%
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1000
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82%
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91%
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96%
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2000
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99%
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99%
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99%
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4000
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99%
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99%
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99%
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8000
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97%
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97%
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98%
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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. |
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Joint Size I.D. (in.)
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Face to Face |
STYLE 3150 (150 psi U.S.A. Drilling
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Style 3250 (250 psi U.S.A. Drilling)
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Min. (in.)
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Max. (in.)
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Ring I.D. (in.)
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Flange
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Bolt circle diam. (in.)
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Bolt Holes
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Ring
I.D. (in.) |
Flange |
Bolt circle diam. (in.).
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Bolt Holes
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Diam. (in.)
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Thick-ness (in.)
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No.
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Diam. (in.)
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Diam.
(in.) |
Thick
(in.) |
No.
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Diam.
(in.) |
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1 1/2
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12
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24
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2 7/8
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5
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11/16
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3-7/8
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4
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5/8
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2-7/8
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6-1/8
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23/32
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4-1/2
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4
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7/8
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2
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12
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24
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3-5/8
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6
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11/16
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3-3/4
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4
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3/4
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3-5/8
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6-1/2
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23/32
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5
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8
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3/4
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3
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12
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36
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4-5/8
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7-1/2
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27/32
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6
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4
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3/4
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4-5/8
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8-1/4
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27/32
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6-5/8
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8
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7/8
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4
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12
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36
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5-7/8
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9
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27/32
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7-1/2
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8
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3/4
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5-7/8
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10
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7/8
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7-7/8
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8
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7/8
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5
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12
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36
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6-7/8
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10
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15/16
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8-1/2
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8
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7/8
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6-7/8
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11
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15/16
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9-1/4
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8
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7/8
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6
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18
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36
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7-7/8
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11
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31/32
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9-1/2
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8
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7/8
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7-7/8
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12-1/2
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15/16
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10-5/8
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12
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7/8
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8
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24
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48
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9-7/8
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13-1/2
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31/32
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11-3/4
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8
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7/8
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9-7/8
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15
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1-1/16
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13
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12
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1
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10
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24
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48
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12-1/8
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16
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1-3/16
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14-1/4
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12
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1
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12-1/8
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17-1/2
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1-11/32
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15-1/4
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16
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1-1/8
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12
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24
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48
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14-1/2
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19
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1-7/32
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17
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12
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1
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14-1/2
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20-1/2
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1-11/32
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17-3/4
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16
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1-1/4
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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. |
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