Patent ID: 9568114
Date: 2017-02-14
CPC Classifications: F16K,Y10T

Claim:
1. A valve unit comprising: a body having a gas passage that is configured to provide communication between an inside of a gas tank and an outside of the gas tank; a joint that is configured to connect a pipe extending from an external gas supply source to the gas passage; and a check valve that is disposed in the gas passage, and that inhibits gas from being discharged from the gas tank to an outside of the body, wherein the valve unit is configured to be fitted to the gas tank in which high-pressure gas is reserved, the check valve is disposed in the gas passage, and the check valve includes a valve seat, a valve element that comes into contact with or moves away from the valve seat so as to close or open the gas passage, and a positioning member that fixes a position of the valve seat in the gas passage, the body has a fitting hole in which the joint and the positioning member are fitted, the fitting hole is communicated with the gas passage, and the joint and the positioning member are configured to be fitted in the fitting hole, the joint, the positioning member, the valve seat, and the valve element are arranged in this order in a direction from the outside of the body toward an inside of the body along a gas low path, and the positioning member is configured to be able to fix the position of the valve seat even when the joint has not been fitted in the fitting hole, the joint, the positioning member, the valve seat, and the valve element are arranged in this order in a direction from the outside of the body toward an inside of the body along a gas flow path, and the positioning member is configured to be able to fix the position of the valve seat even when the joint has not been fitted in the fitting hole.