| 摘要 |
A check valve is provided to maintain position of plunger stable because a stopper is held on the barrier groove formed in the outer circumference of the plunger. A check valve comprises a plunger(2) in which a barrier groove is formed in the outer circumference thereof, and a stopper(5) which fixes the location of plunger while being inserted into the barrier groove or being broken away therefrom. The plunger opens and closes an oil outlet port(1c) while moving with the oil pressure and a spring(3). The plunger is inserted inside a check valve body(1a) and is flexibly supported by the spring. The stopper is inserted into a mounting hole(1d) formed in the check valve body and is flexibly supported by the spring(6). |
