High-pressure gas cylinder valves have two valve seals: a main seal and one ____ to prevent gas leaks.

Name: High-pressure gas cylinder valves have two valve seals: a main seal and one ____ to prevent gas leaks.
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Question

Quizplus · Accepted Answer

The second valve seal on high-pressure gas cylinder valves is typically called a back seal. It is designed to prevent gas leaks in the event that the main seal fails. Rubber seals, tight seals, and seating seals are all types of main seals that may be used in combination with a back seal.

High-Pressure Gas Cylinder Valves Have Two Valve Seals: a Main