Patent ID: 6612538
Filing Date: 2003-09-02
Classification: F16K,F16L,Y10T

Abstract:
A two-way valve comprising:a joint section having a body with a first port at one end, a second port at the other end, and a fluid passage defined therein for communication between said first port and said second port; a bonnet closing an opening of said body; a valve mechanism having a displacement mechanism including a valve plug for opening and closing said fluid passage under an action of a pilot pressure; and a pilot pressure supplying section having a pilot port to be supplied with the pilot pressure, wherein said pilot port is formed on an annular member disposed between said body and said bonnet, said pilot port being formed integrally with said annular member and rotatable circumferentially integrally with said annular member, and wherein a plurality of protrusions are formed on an edge portion of said annular member, said protrusions being separated from each other by a predetermined angle in a circumferential direction, and a plurality of recesses are formed in an end surface of said body, said recesses being separated from each other by said predetermined angle in the circumferential direction, such that said pilot port is held in a state in which it is positionable a each pilot at each predetermined locations separated by said predetermined angle in the circumferential direction by rotating said annular member in said circumferential direction and engaging said protrusions in said recesses.