Patent ID: 9683706
Date: 2017-06-20
CPC Classifications: F16K,F17C,G05D

Claim:
1. A cylinder valve, comprising: a container attachment portion that attaches a valve to a gas cylinder that allows a fluid to be stored therein: a fluid inlet/outlet that allows the fluid to flow to, and from, the valve; a flow path that extends from the container attachment portion to the fluid inlet/outlet and being open at both of ends thereof to allow the fluid to flow therethrough; and an open/close valve that switches an open state to a close state or from the close state to the open state at an intermediate portion of the flow path; wherein: a flow direction restriction valve mechanism that prevents the fluid, flowing in the flow path in a releasing direction, from flowing in an unintended direction is attached in a restriction valve attachment space formed in the flow path; the flow direction restriction valve mechanism includes: wherein the sealing member retaining portion includes a pressing member that directly contacts the sealing member and presses the sealing member in a contact direction in which the tip contact portion directly contacts the contact permission portion.