Abstract: In the direct-acting valve of the present invention, no flange is formed in the valve box and the piping is achieved by interposing the valve box between pipe flanges. The direct acting valve includes: a driving section that operates by sensing a primary pressure or a secondary pressure; and a valve body communicating with the driving section to open and close a flow path. A valve box of the valve is positioned between pipe flanges tightened by bolts and nuts. Connecting end portions to be mated with pipe flanges respectively have an inlet and an outlet of the flow path, and each of the end portions is formed to have a smaller diameter than that of the pipe flange. A cover flange neck is extended upward from the valve box is formed so as to be interposed between the bolts B and B1 which are provided between the pipe flanges and adjacent to each other on the circumference of the pipe flanges.

Abstract: In the direct-acting valve of the present invention, no flange is formed in the valve box and the piping is achieved by interposing the valve box between pipe flanges. The direct-acting valve of the present invention includes: a driving section 1 that operates by sensing a primary pressure or a secondary pressure; and a valve body 3 communicating with the driving section 1 to open and close a flow path 2. A valve box 4 of the valve is sandwiched between pipe flanges F and F1 tightened by bolts B, B1 and nuts N, N1 . . . . Connecting end portions 10 and 11 to be mated with pipe flanges F and F1 that respectively have an inlet and an outlet 6 and 7 of the flow path 2 are made to be flangeless. A cover flange neck 17 is extended upward from the valve box 4 is formed so as to be interposed between the bolts B and B1 which are provided between the pipe flanges F and F1 and adjacent to each other on the circumference of the pipe flanges F and F1.

Abstract: A primary pressure chamber (7) and a secondary pressure chamber (8) leading to an inlet (5) disposed at the lower part of a main body and an outlet (6) disposed at a side part of the main body, respectively, are formed by dividing an interior of the main body, and the chambers (7, 8) are linked to each other through a valve port (10) upwardly formed coaxially with the inlet (5). A valve disc (11) disposed to open and close the valve port (10) is urged in a valve-closing direction by a spring (12). A diaphragm (13) coupled to the valve disc (11) divides a diaphragm chamber (15) disposed on a back side of the diaphragm (13) in the interior of the main body (1) from the primary pressure chamber (7) An effective pressure-receiving area of the diaphragm (13) on a side of the diaphragm chamber (15) is set greater than that of the diaphragm on a side of the primary pressure chamber (7). The chambers (7, 15) are linked to each other through a bypass flow path (22).

Abstract: An operating device for inputting the coordinate positions of a controlled object that moves across a screen. The present invention is directed to obviating the problems of the prior art involving the bad operability of a knob which requires rotation through a large angle to move the controlled object across the screen, and the short life-span of the knob due to frequent use. In order to overcome these problems, the rotational number of a main shaft is increased by a rotational number increasing mechanism and the rotational number of the output shaft of the rotational number increasing mechanism is optically or magnetically detected. The present invention is therefore suitable for use as an operating device for a TV game machine.