In Spotlight

Mini valves and rupture disc holders

Sampling cylinders are essential for analyzes especially in oil and gas industry or refineries. They also allow the removal of a medium sample from a process site. And provide a safe storage during transport to the laboratory.

Caught in crossfire of influences

Mini valves are located at both ends of the sampling cylinder. They have a shut-off function and prevent a leakage of the medium. Mini valves are caught in crossfire of influences. Their seat and seal materials have to resist hot, cold, wet and freezing conditions. They also have to resist dirty sour gas, carbon dioxide and other compounds found in your pipeline and transmission system. That`s why I would like to recommend all purchasing managers: Before buying mini valves, check the quality of material and the body design. Only in that way you can ensure that the mini valves can perform well in the required applications.

Prevent overpressure

When transporting the sampling cylinders to the laboratory, they are exposed to different weather conditions and external factors. For example, a sampling cylinder can fall down and break. The rupture disc holder (rated break point) ensures that the cylinder does not explode or break in such a case. Rupture disc holder provides protection against overpressure in the sampling cylinder. They allow the medium to escape into the atmosphere in a controlled manner. The rupture disc holder is welded to a carrier that is mounted to the valve with an O ring seal. The rupture disc holder can be easily replaced in the field while the mini valve remains connected to the sampling unit.

(Image source: © Andrei Merkulov/Fotolia & AS-Schneider)

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