Diaphragm valve and seat holder unit for diaphragm valve
A technology of retainer and diaphragm valve, applied in the direction of diaphragm valve, diaphragm, valve device, etc., can solve the problems of difficult valve seat replacement and inability to remove it, and achieve the effect of easy replacement and easy maintenance
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[0034] Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0035] figure 1 One embodiment of the diaphragm valve of the present invention is shown. The diaphragm valve 1 includes: a block valve body 2 having a fluid inflow passage 2a, a fluid outflow passage 2b, and a concave portion 2c opening upward; a lower end and an upper portion of the concave portion 2c of the valve body 2 A cylindrical valve cover 3 screwed and extending upward; an annular valve seat 4 provided on the periphery of the fluid inflow passage 2a; a valve seat provided on the outer periphery of the valve seat 4 in the valve body 2 and holding the valve seat 4 The retainer 5; the diaphragm 6 that is pressed or separated from the valve seat 4 to open and close the fluid passage 2a; the valve stem 7 has a diaphragm pressing member 8 at the lower end that presses the center of the diaphragm 6 to be able to move up and down freely The valve cover 3 is inserted into ...
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