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Relief valves

Product catalog summary

Overview: The VSBV 25 is a relief valve designed for gaseous media, capable of handling inlet pressures up to 4 bar and adjustable opening pressures ranging from 20 to 500 mbar. It is primarily used to relieve brief pressure surges in control systems, preventing unintended activation of safety shut-off valves.

Specifications:

Applicable for natural gas, town gas, landfill gas, LPG (gaseous), and biogas with a maximum of 0.02% H2S by volume.
Inlet pressure capacity: up to 4 bar.
Accuracy group: AG 10.
Operational temperature range: -15 to +60°C; Storage temperature range: -15 to +40°C.
Construction materials include aluminium for the valve housing, seat, and stem, Perbunan for the diaphragm, and NBR for the valve disc.
Internal thread: Rp 1 to ISO 7-1.
Weight: 1.6 kg.

Applications: The VSBV 25 is essential for gas pressure control systems in conjunction with safety shut-off valves (JSAV) as per EN 746-2 standards. It is particularly useful in scenarios where gas pressure regulators do not close tightly, leading to gas creeps.

Maintenance: The valve requires maintenance at least once a year, or twice a year if used with biogas.

Contact Information: For further details, visit www.kromschroeder.com or contact Elster GmbH at Strotheweg 1, 49504 Lotte (Büren), Germany. Phone: +49 541 1214-0, Email: [email protected].

Catalog excerpts

ER[ C€ Relief valves • For gaseous media • Inlet pressure range up to 4 bar • Adjustable opening pressure 20 - 500 mbar

Open the catalog to page 1

Type code Application Code VSBV25R40 Relief valve for relieving brief pressure surges in control systems thus preventing the safety shutoff valve JSAV from being activated unintentionally. The VSBV reduces too high a pressure increase due to gas creeps which are the result of gas pressure regulators that are not tight closing. Compulsory for all gas pressure control systems in conjunction with a safety shut-off valve JSAV pursuant to EN 746-2. Application examples Technical data Gas types: natural gas, town gas, landfill gas, LPG (gaseous) and biogas (max. 0.02 %-by-vol. H2S). The gas must be...

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Relief valves

Relief valves

Catalog excerpts

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