Abstract: A plug body housing 16 has a receiving recess 17, and the receiving recess 17 includes a first recess 21 opening toward the outside and a second recess 22 connected to the first recess 21. Check valves 8 and 9 are provided in the second recess 22, and a manual valve 14 is provided in the first recess 21. An internal threaded portion 45 is formed in an inner circumferential surface of the first recess 21, and a housing 35 of the manual valve 14 is threaded into the internal threaded portion 45. The check valves 8 and 9 are held between a bottom surface 22a of the second recess 22 and a bottom 35a of the housing 35 so that the check valves 8 and 9 are secured in the second recess 22.

Abstract: In order to obtain a solenoid valve device installed in a gas tank that is small in size and easy to attach to a gas tank, a valve body (8) including a flow passage (a) formed therein to communicate the inside and the outside of a gas tank (1) is inserted to the inside from the outside through a mouth hole (2) of the gas tank (1) and attached to the mouth hole (2). A valve seat (46) is provided in the flow passage (a), and a movable valve element (40) attached to or detached from the valve seat (46) is provided in the valve body (8). A solenoid unit (48) includes a movable core (50) engaged with the valve element (40) and a fixed core (64) facing the movable core (50) to attract the movable core (50) by the energization of a coil (74) and distract the movable core (50) by the non-energization of the coil (74). The solenoid unit (48) is arranged inside a storage hole (16) formed at an end part of the valve body (8) inside the gas tank (1).

Abstract: A plug body housing 16 has a receiving recess 17 and the receiving recess 17 includes a first recess 21 opening toward the outside and a second recess 22 connected to the first recess 21. Check valves 8 and 9 are provided in the second recess 22, and a manual valve 14 is provided in the first recess 21. An internal threaded portion 45 is formed in an inner circumferential surface of the first recess 21, and a housing 35 of the manual valve 14 is threaded into the internal threaded portion 45. The check valves 8 and 9 are held between a bottom surface 22a of the second recess 22 and a bottom 35a of the housing 35 so that the check valves 8 and 9 are secured in the second recess 22.

Abstract: A valve device for high-pressure gas opens and closes a communication hole for communicating a primary pressure chamber, into which the high-pressure gas flows, to a secondary pressure chamber where pressure is lower than that of the primary pressure chamber. The valve device has a valve seat member provided at the communication hole and a valve body that is caused to be seated on and to leave from the valve seat member to open and close the communication hole. The communication hole has an opening connected to the primary pressure chamber. The opening has a reception recess opened toward the primary pressure chamber. In the reception recess is fitted the valve seat member. As a result, the valve device can achieve sufficient sealing ability.

Abstract: In order to obtain a solenoid valve device installed in a gas tank that is small in size and easy to attach to a gas tank, a valve body (8) including a flow passage (a) formed therein to communicate the inside and the outside of a gas tank (1) is inserted to the inside from the outside through a mouth hole (2) of the gas tank (1) and attached to the mouth hole (2). A valve seat (46) is provided in the flow passage (a), and a movable valve element (40) attached to or detached from the valve seat (46) is provided in the valve body (8). A solenoid unit (48) includes a movable core (50) engaged with the valve element (40) and a fixed core (64) facing the movable core (50) to attract the movable core (50) by the energization of a coil (74) and distract the movable core (50) by the non-energization of the coil (74). The solenoid unit (48) is arranged inside a storage hole (16) formed at an end part of the valve body (8) inside the gas tank (1).

Abstract: A stop valve for a gas tank is provided which achieves favorable sealing performance by inhibiting rotation of a sealing member attached to a valve element. A passage is formed inside a valve body, and a valve seat is provided in the passage. The valve element which is engaged and disengaged from the valve seat is slidably inserted to a sliding hole bored in the valve body. The annular sealing member is arranged in sliding contact with the outer peripheral surface of the valve element and the inner peripheral surface of the sliding hole. A screw hole connecting to the sliding hole and coaxial thereto is provided in the valve body. A rotating operation member having a male screw is rotatably screwed into the screw hole from the outside of the valve body. One end of the rotating operation member is made to abut the valve body.

Abstract: A stop valve for a gas tank is provided which achieves favorable sealing performance by inhibiting rotation of a sealing member attached to a valve element. A passage is formed inside a valve body, and a valve seat is provided in the passage. The valve element which is engaged and disengaged from the valve seat is slidably inserted to a sliding hole bored in the valve body. The annular sealing member is arranged in sliding contact with the outer peripheral surface of the valve element and the inner peripheral surface of the sliding hole. A screw hole connecting to the sliding hole and coaxial thereto is provided in the valve body. A rotating operation member having a male screw is rotatably screwed into the screw hole from the outside of the valve body. One end of the rotating operation member is made to abut the valve body.