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Safety Relief Valve VSBV 25TN40-0
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- Safety relief valve for relieving brief pressure surges in control systems preventing the safety shut-off valve JSAV from being activated unintentionally.
- Gas types: natural gas, town gas, landfill gas, LPG (gaseous) and biologically produced methane (max. 0.02 %-by-vol. H2S)
- 1″ NPT internal thread connection
- Maximum inlet pressure: 60 psig (4 bar)
- Opening pressure range adjustable 8" WC to 8.0 psig / 20–500 mbar
- Free of nonferrous metal
- CE certified models available
- Required for use with Regulator JSAV Overpressure Shut-off valve
- Learn More:
- Documentation
- Accessories
- Applications
- Specifications
Documentation
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FAQ: Kromschröder Product Labels and Type Codes (Blog Post) |
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Safety Relief Valve VSBV Brochure |
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Safety Relief Valve VSBV Operating Instructions |
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Safety Relief Valve VSBV Technical Information |
Accessories
| Model and Description | Price | Cart |
| VSBV SPRING 01 Spring 8-16 " w.c. (20-40 mbar), red |
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| VSBV SPRING 02 Spring 14-20 " w.c. (35-50 mbar), yellow |
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| VSBV SPRING 03 Spring 18-30 " w.c. (45-75 mbar), green |
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| VSBV SPRING 04† Spring 1-2.5 psi (70-170 mbar), blue |
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| VSBV SPRING 05 Spring 2.5-4.8 psi (165-330 mbar), black |
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| VSBV SPRING 06 Spring 4.7-7.2 psi (320-500 mbar), white |
†Comes standard with the purchase of the VSBV valve.
Applications
Click on images for close-up view.
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Gas pressure regulating systems should be assembled with a Regulator JSAV safety over pressure slam shut off valve upstream of the regulator and safety relief valve VSBV. These safety valves are not required if the highest possible operating pressure of the regulator does not exceed the maximum permissible operating pressure of all devices connected downstream of the regulator. |
Specifications
| Operating Limits | |||||||||
| Ambient temperature range: | 5° F to 140° F (-15° C to 60° C) | ||||||||
| Maximum inlet pressure: | 60 psig (4 bar) | ||||||||
| Response Pressure: | 8" WC to 7.0 psig (20 to 500 mbar) | ||||||||
| Factory setting: | 1.43 psig (100 mbar) | ||||||||
| Type of Gas: | natural gas, clean coke oven gas, and LPG | ||||||||
| Mechanical Data | |||||||||
| Available pipe sizes: | NPT-threaded: 1″ | ||||||||
| Construction Materials | |||||||||
| Housing: | JSAV and VSBV regulators have pressure die-cast aluminium alloy bodies and diaphragm housings. Diaphragms are nitrile rubber, and valve discs have vulcanized nitrile rubber seals. Valve stems and valve discs are aluminum. |
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| Opening Pressure Range | |||||||||
*standard spring |
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VSBV 25TN40-0
Price:
1″ NPT internal thread connection; Maximum inlet pressure: 60 psig (4 bar)
VSBV Spring 01
Price:
8-16 " w.c. (20-40 mbar), red
VSBV Spring 02
Price:
14-20 " w.c. (35-50 mbar), yellow
VSBV Spring 03
Price:
18-30 " w.c. (45-75 mbar), green
VSBV Spring 04
Price:
1-2.5 psi (70-170 mbar), blue (included with VSBV)
VSBV Spring 05
Price:
2.5-4.8 psi (165-330 mbar), black
VSBV Spring 06
Price:
4.7-7.2 psi (320-500 mbar), white
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