| 摘要 |
<p>The valve has a valve body abutment plate (22) abutting an elastic valve body portion (12) from a fluid outlet side, and includes a pressing portion (23) for pressing an outer peripheral portion of the body portion. Back flow fluid pressure exerting holes exert a pressure from a fluid outlet side on the body portion. Springs urging the body into abutment with a valve seat are interposed between the plate and a shaft portion. The valve body abutment plate is supported to a valve shaft so as to be axially movable.</p> |
