| 摘要 |
A rotary valve includes a main valve body that including a body, a seat disposed in the body and a valve body disposed in the body so that the seat is rotatable through the seat, and being modulated as a common component part; a stem piercing the body and imparting opening and closing motions to the valve body; an attaching-detaching part disposed at a position at which the stem pierces the body; an operating part disposed on the stem and adapted to operate the valve body; and a coupling part detachably fastened at one end thereof t o the attaching-detaching part and mounted at the other end thereof on the operati ng part for joining the attaching-detaching part and the operating part.
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