FLOW LIMITER
102
Safety Valves
28951-100 SERIES
FLOW LIMITER
INLINE •
FEMALE NPTF TO MALE NPTF
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.
Product Rendering
Schematic
Typical Performance
Operation
- BLEED RATE AFTER CLOSING IS 2.0 - 3.0 GPM AT 3000 PSI.
- FLOW FROM (2) TO (1) PASSES THROUGH THE CONTROLLING ORIFICE BUT IS UNCONTROLLED.
- FLOW ABOVE THE SPECIFIED LIMIT IS ASSUMED TO BE A LINE FAILURE AND IS LIMITED.
- A FLOW BELOW THE SPECIFIED LIMIT IS ALLOWED FROM (1) TO (2).
Features
- NON-STANDARD BLEED FLOW RATES ARE AVAILABLE UPON REQUEST.
- RAPID RESPONSE.
- FAIL SAFE DESIGN.
- STEEL COMPONENTS.
Specifications
| CLOSING FLOW TOLERANCE |
+15% / -0% |
| OPERATING PRESSURE |
3500 PSI |
| REOPENING DIFFERENTIAL |
50 PSI |
| TEMPERATURE RANGE |
250° F TO -40° F |
Ordering Information
| 28951-102 | 1/4-18 NPTF PORT | 1/4-18 NPTF | 0.5 TO 10.0 GPM | 2.85 | 0.750 |
28951-103 | 3/8-18 NPTF PORT | 3/8-18 NPTF | 1.0 TO 25.0 GPM | 3.25 | 0.875 | 28951-104 | 1/2-14 NPTF PORT | 1/2-14 NPTF | 2.0 TO 40.0 GPM | 3.30 | 1.125 | 28951-106 | 3/4-14 NPTF PORT | 3/4-14 NPTF | 2.0 TO 50.0 GPM | 3.65 | 1.375 |
28951-102View More
1/4-18 NPTF PORT
1/4-18 NPTF
0.5 TO 10.0 GPM
2.85
0.750
28951-103View More
3/8-18 NPTF PORT
3/8-18 NPTF
1.0 TO 25.0 GPM
3.25
0.875
28951-104View More
1/2-14 NPTF PORT
1/2-14 NPTF
2.0 TO 40.0 GPM
3.30
1.125
28951-106View More
3/4-14 NPTF PORT
3/4-14 NPTF
2.0 TO 50.0 GPM
3.65
1.375
Page last updated: 11/16/18, 10:25 PM
This document, as well as all catalogs, price lists and information provided by Vonberg Valve, Inc., is intended to provide product information for further consideration by users having substantial technical expertise due to the variety of operating conditions and applications for these valves, the user, through its own analysis, testing and evaluation, is solely responsible for making the final selection of the products and ensuring that all safety, warning and performance requirements of the application or use are met.
The valves described herein, including without limitation, all component features, specifications, designs, pricing and availability, are subject to change at any time at the sole discretion of vonberg valve, inc. without prior notification.
