Patent ID: 11859733
Assignee: FUJIKIN INCORPORATED
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 1:
2. The valve device according to claim 1, wherein
the actuator has a case,
the case has:
a tubular extended portion provided so as to extend toward the flow passage block side, the extended portion being formed with an external thread on an outer circumferential surface, and the external thread being configured to be threaded to the internal thread; and
an annular contact surface located at outer circumferential side from the extended portion, the contact surface facing the bonnet,

the bonnet is formed with an annular positioning surface facing the contact surface, and
a clearance is formed between the extended portion and the lock nut in a state in which the contact surface and the positioning surface are brought into contact by threading the external thread and the internal thread.