VELOCITY FUSE
31
Safety Valves
28900-500 SERIES
VELOCITY FUSE
INLINE •
MALE NPTF TO FEMALE NPTF
Description
AN IN-LINE VELOCITY FUSE WITH A MALE NPTF INLET AND A FEMALE
NPTF OUTLET THAT PROVIDES FULL-LINE
SHUT-OFF IN THE EVENT OF A LINE
FAILURE.
Product Rendering
Schematic
Typical Performance
Operation
- 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 BLOCKED.
- A FLOW BELOW THE SPECIFIED LIMIT IS ALLOWED FROM (1) TO (2).
Features
- 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
28900-502 | 1/4-18 NPTF | 1/4-18 NPTF PORT | 0.1 TO 4.0 GPM | 2.70 | 0.75 |
28900-503 | 3/8-18 NPTF | 3/8-18 NPTF PORT | 0.5 TO 10.0 GPM | 2.70 | 0.88 | 28900-504 | 1/2-14 NPTF | 1/2-14 NPTF PORT | 1.0 TO 25.0 GPM | 3.00 | 1.13 | 28900-506 | 3/4-14 NPTF | 3/4-14 NPTF PORT | 2.0 TO 40.0 GPM | 3.20 | 1.38 | 28900-508 | 1-11 1/2 NPTF | 1-11 1/2 NPTF PORT | 2.0 TO 50.0 GPM | 3.80 | 1.63 |
28900-502View More
1/4-18 NPTF
1/4-18 NPTF PORT
0.1 TO 4.0 GPM
2.70
0.75
28900-503View More
3/8-18 NPTF
3/8-18 NPTF PORT
0.5 TO 10.0 GPM
2.70
0.88
28900-504View More
1/2-14 NPTF
1/2-14 NPTF PORT
1.0 TO 25.0 GPM
3.00
1.13
28900-506View More
3/4-14 NPTF
3/4-14 NPTF PORT
2.0 TO 40.0 GPM
3.20
1.38
28900-508View More
1-11 1/2 NPTF
1-11 1/2 NPTF PORT
2.0 TO 50.0 GPM
3.80
1.63
Page last updated: 9/26/18, 4:58 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.