Importance

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Abstract

A tube seat installation device having a piping connecting part of a special coupling joint being attached on one side of the input piping opening or the output piping opening of the fluid pressure valve while at the same time having a cylindrical part of the special coupling joint fitted into a connecting hole of the tube seat via an O-ring sealing element. The piping connecting part of the special coupling joint is attached to the other side of an outlet piping opening or an inlet piping opening. The cylindrical part is fitted into the introduction part of the hollow body via an O-ring sealing element, or the introduction part of the hollow body is attached to the piping opening via an O-ring sealing element. A flange part of this hollow body is faced and fixed to another connecting hole of the tube seat via O-ring sealing element to which a fluid pressure valve is fixed by being sandwiched by the hollow body. A fluid path runs in the vicinity of the fluid pressure valve through a passageway so that it becomes possible to accommodate the flanges of different types which can be installed on a tube seat simply by using standard and inexpensive fluid pressure valves which have a piping opening fitted for a screw thread connection, and which can be mass-produced as a standard product.

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First Claim