| 摘要 |
PROBLEM TO BE SOLVED: To provide a seal structure that prevents liquid leak even if a seal portion of a diaphragm valve creeps. SOLUTION: This valve has a structure for sealing fluid inside a main body 1 by sandwiching a peripheral edge portion 20 of a diaphragm 3 between the main body 1 and a bonnet 2. An annular fitting portion 21 of L-shaped cross section arranged on the outer peripheral portion of the diaphragm 3 is pressed against, fitted and fixed to an annular groove 13 arranged on the main body 1 by an O-ring 5. COPYRIGHT: (C)2004,JPO
|
