| 摘要 |
Provided is an integrated check-relief valve in which a retreat amount of a valve seat member can be regulated when a relief valve is in operation. There is provided an integrated check-relief valve (1) including a tubular valve housing 2 ()of which both ends are open. Inside the valve housing (2), a check ball (3) and a valve disk (4) with which the check ball (3) can come into contact are provided so as to be movable in an axial direction, a check spring (5) which urges the check ball (3) to the valve disk (4) side and a relief spring (6) which urges the valve disk (4) to the check ball 3 ()side are provided. A step portion (20) which is a regulation portion regulating a movement amount of the valve disk (4) with respect to a side where the relief spring (6) contracts is provided on an inner circumferential surface 2b of the valve housing (2). |
