Abstract: A fusible plug for a high pressure gas cylinder includes a communication hole filled with a low melting point alloy, a porous metal sintered body is press-fitted in at least a part of the communication hole in a length direction, all or a part of the porous metal sintered body is impregnated with the low melting point alloy to solidify and composite the low melting point alloy. It is preferable that: the low melting point alloy has a melting point of 110° C.; the porous metal sintered body to be press-fitted is a porous metal sintered body having pores with an area ratio of 30% or more and 50% or less and having pores with a diameter exceeding 5 ?m among the pores of 80% or more in terms of area ratio to all the pores; and the porous metal sintered body is a porous austenitic stainless steel sintered body.

Abstract: A valve device includes a body, a solenoid valve, and a manual valve mounted to the body. The manual valve being configured to open and close the gas flow channel via a manual operation. The gas flow channel includes a first flow channel including the valve-side opening portion, and a second flow channel including the tank-side opening portion, and includes an intersection portion in which a first center axis that is a center axis of the first flow channel and a second center axis that is a center axis of the second flow channel intersect with each other. A center axis of the solenoid valve coincides with an extension line of the first center axis and a center axis of the manual valve coincides with an extension line of the second center axis.

Abstract: A valve device includes a body having a gas flow path. When the gas is charged, the first flow path is located upstream of the intersecting portion, and the second flow path is located downstream of the intersecting portion. The gas flow path has a check valve mechanism and a drive mechanism. The check valve mechanism opens a valve when the gas is charged and closes the valve when the gas charge is completed, and the drive mechanism opens the valve of the check valve mechanism and holds the open state of the valve of the check valve mechanism when the gas is discharged from the tank. The check valve mechanism includes a valve seat, and the valve seat is disposed in the first flow path.

Abstract: A fusible plug for a high pressure gas cylinder includes a communication hole filled with a low melting point alloy, a porous metal sintered body is press-fitted in at least a part of the communication hole in a length direction, all or a part of the porous metal sintered body is impregnated with the low melting point alloy to solidify and composite the low melting point alloy. It is preferable that: the low melting point alloy has a melting point of 110° C.; the porous metal sintered body to be press-fitted is a porous metal sintered body having pores with an area ratio of 30% or more and 50% or less and having pores with a diameter exceeding 5 ?m among the pores of 80% or more in terms of area ratio to all the pores; and the porous metal sintered body is a porous austenitic stainless steel sintered body.

Abstract: A valve device includes a body, a solenoid valve, and a manual valve mounted to the body. The manual valve being configured to open and close the gas flow channel via a manual operation. The gas flow channel includes a first flow channel including the valve-side opening portion, and a second flow channel including the tank-side opening portion, and includes an intersection portion in which a first center axis that is a center axis of the first flow channel and a second center axis that is a center axis of the second flow channel intersect with each other. A center axis of the solenoid valve coincides with an extension line of the first center axis and a center axis of the manual valve coincides with an extension line of the second center axis.

Abstract: A solenoid valve device includes a body including a gas passage and an accommodation portion communicating with the gas passage, a solenoid valve that is accommodated in the accommodation portion and that controls flow of gas by opening and closing the gas passage, a sealing member disposed between the accommodation portion and the solenoid valve to maintain airtightness of the gas passage, and a solenoid that generates power for the solenoid valve to open and close the gas passage, wherein the body is provided with a communication hole that allows communication between inside and outside of the accommodation portion; the solenoid includes a connection terminal portion extending toward the communication hole; and a connector is accommodated in the communication hole in a manner such that rotation of the connector in a circumferential direction about an axis of the communication hole is suppressed.

Abstract: A valve device includes a body having a gas flow path. When the gas is charged, the first flow path is located upstream of the intersecting portion, and the second flow path is located downstream of the intersecting portion. The gas flow path has a check valve mechanism and a drive mechanism. The check valve mechanism opens a valve when the gas is charged and closes the valve when the gas charge is completed, and the drive mechanism opens the valve of the check valve mechanism and holds the open state of the valve of the check valve mechanism when the gas is discharged from the tank. The check valve mechanism includes a valve seat, and the valve seat is disposed in the first flow path.

Abstract: A solenoid valve device includes a body including a gas passage and an accommodation portion communicating with the gas passage, a solenoid valve that is accommodated in the accommodation portion and that controls flow of gas by opening and closing the gas passage, a sealing member disposed between the accommodation portion and the solenoid valve to maintain airtightness of the gas passage, and a solenoid that generates power for the solenoid valve to open and close the gas passage, wherein the body is provided with a communication hole that allows communication between inside and outside of the accommodation portion; the solenoid includes a connection terminal portion extending toward the communication hole; and a connector is accommodated in the communication hole in a manner such that rotation of the connector in a circumferential direction about an axis of the communication hole is suppressed.