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FLOW
LIMITER
IN-LINE |
28951-100
SERIES
FEMALE NPTF TO
MALE NPTF CONNECTIONS |
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| DESCRIPTION |
| - |
AN IN-LINE FLOW LIMITER WITH A FEMALE NPTF INLET AND A MALE NPTF OUTLET THAT PREVENTS FREE FALL IN THE EVENT OF A LINE FAILURE BUT ALLOWS A METERED FLOW AFTER CLOSING. |
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| OPERATION |
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A FLOW BELOW THE SPECIFIED LIMIT IS ALLOWED FROM "1" TO "2". |
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FLOW ABOVE THE SPECIFIED LIMIT IS ASSUMED TO BE A LINE FAILURE AND IS LIMITED. |
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BLEED RATE AFTER CLOSING IS 2.0 - 3.0 GPM AT 3500
PSI. |
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FLOW FROM "2" TO "1" PASSES THRU THE CONTROLLING ORIFICE BUT IS UNCONTROLLED. |
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CLOSING FLOW TOLERANCE= +15%/-0%. |
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| FEATURES |
| - |
STEEL COMPONENTS. |
| - |
NON-STANDARD
BLEED FLOW RATES
ARE AVAILABLE UPON
REQUEST. |
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RAPID
RESPONSE. |
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SPECIFICATIONS - |
| Hydraulic
Symbol |
 |
| Operating
Pressure |
3500
PSI |
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Temperature Range |
250ºF to -40ºF |
| Reopening
Differential |
50
PSI |
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ALL
DIMENSIONS IN INCHES |
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ORDERING INFORMATION - |
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| MODEL |
CONN.
1 |
CONN.
2 |
FLOW
RANGE |
L |
HEX. |
| 28951-102 |
1/4
- 18 NPTF |
1/4
- 18 NPTF |
0.5
- 10.0 GPM |
2.85 |
0.750 |
| 28951-103 |
3/8
- 18 NPTF |
3/8
- 18 NPTF |
0.5
- 25.0 GPM |
3.25 |
0.875 |
| 28951-104 |
1/2
- 14 NPTF |
1/2
- 14 NPTF |
2.0
- 40.0 GPM |
3.30 |
1.125 |
| 28951-106 |
3/4
- 14 NPTF |
3/4
- 14 NPTF |
2.0
- 50.0 GPM |
3.65 |
1.375 |
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Vonberg
Valve, inc.
HYDRAULIC
VALVE SPECIALISTS |
3800
Industrial Avenue
Rolling Meadows, IL 60008-1085
847/ 259-3800 fax 847/259-3997 |
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