Abstract: A spiral type fluid mixer which enables mixing by a distribution of concentration or distribution of temperature in a flow direction of the fluid made uniform without unevenness and which is compact and enables easy piping work is provided. This spiral type fluid mixer is provided with a fluid inlet, a first flow path which is connected to the fluid inlet, a first spiral flow path which is connected to the first flow path, a plurality of branch flow paths which are branched from the first spiral flow path, a second spiral flow path to which the plurality of branch flow paths are connected, a second flow path which is connected to the second spiral flow path, and a fluid outlet which is connected to the second flow path, the plurality of branch flow path being branched from different positions of the first spiral flow path and being connected with the second spiral flow path at different positions of the second spiral flow path.

Abstract: A fluid mixer which can mix fluid while making the distribution of concentration or distribution of temperature of the fluid in the direction of flow uniform without any unevenness and which is both compact and easy to install piping for is provided. This fluid mixer has a fluid inlet, a first flow path connected to the fluid inlet, a spiral flow path connected to the first flow path, a plurality of branch flow paths branched from the spiral flow path, a second flow path to which the plurality of branch flow paths are connected, and a fluid outlet connected to the second flow path, the plurality of branch flow paths branching from different positions of the spiral flow path and being connected with the second flow path at different positions of the second flow path.

Abstract: An object of the present invention is to provide a fluid mixing system able to mix the fluids of different lines by any ratio and control the flow rates of even pulsating fluids, able to control the flow rate of even a pulsating fluid, compact in configuration and able to be installed in a narrow space, and enabling easy pipe laying and pipe connection at the time of installation.

Abstract: An object of the present invention is to provide a constant flow valve able to make the flow rate constant at all times even if the upstream and downstream side fluid pressure of the valve fluctuates for a large flow rate fluid and able to set the flowing fluid to any flow rate.

Abstract: A valve includes a drive part provided with a piston for driving a valve element in an axial direction, a valve body formed at one end in the axial direction with a valve chamber for accommodating the valve element, and a base seat. The drive part includes leg parts suspended down from one end in the axial direction. The leg parts form a receiving part for accommodating the valve body inside the leg parts. The valve body is inserted into the receiving part so that the valve element of the drive part is accommodated in the valve chamber of the valve body. Then, the base seat is fixed to the leg parts in the state with the seat made to abut against the other end of the valve body in the axial direction so that the valve body is held between the base seat and the drive part.

Abstract: A manifold valve having two valves, which enables operation of one valve while disables operation of the other valve, is compact, and facilitates installation in and detachment from a pipeline, that is, a manifold valve provided with a main passageway, a branch passageway split off from the main passageway, a main passageway valve opening and closing the main passageway, and a branch valve opening and closing the branch passageway, the main passageway, the branch passageway, the main passageway valve, and the branch valve being integrally formed, wherein the main passageway valve and the branch valve are each a manual valve having a valve element, a stem connected to the valve element, and an operating lever connected to the stem, the operating lever pivoting in an axial direction of the stem to open and close the passageway, the main passageway valve and the branch valve each converting pivoting motion of the operating lever to linear motion of the valve element and pressing the valve element against and sep

Abstract: A valve includes a drive part (2) provided with a piston (4) for driving a valve element (7) in an axial direction, a valve body (1) formed at one end in the axial direction with a valve chamber (17) for accommodating the valve element (7), and a base seat (3). The drive part (2) includes leg parts (11) suspended down from one end in the axial direction. The leg parts (11) form a receiving part for accommodating the valve body (1) inside the leg parts. The valve body (1) is inserted into the receiving part so that the valve element (7) of the drive part (2) is accommodated in the valve chamber (17) of the valve body (1). Then, the base seat (3) is fixed to the leg parts (11) in the state with the seat (3) made to abut against the other end of the valve body (1) in the axial direction so that the valve body (1) is held between the base seat (3) and the drive part (2). Such a valve may be used in a fluid feed system, a fluid discharge system or other fluid system.

Abstract: An object of the present invention is to provide a fluid mixing system able to control the flow rates of different lines of fluid to mix them in any ratio, able to control the flow rate of even a pulsating fluid without problem, compact in configuration and able to be installed in a narrow space, and enabling easy pipe laying and pipe connection at the time of installation. In the system of the present invention, its feed lines 1, 2 are provided with fluid control valves 4, 10 changing the opening area of the channels to control the flow rates of the fluids, flow rate measuring devices 3, 9 measuring the actual flow rates of the fluids and converting the measured values of the actual flow rates to electrical signals for output, and control units 5, 11 outputting command signals for controlling the opening areas of the fluid control valve to the fluid control valves or equipment operating the fluid control valves based on the error between the measured values of the actual flow rate and the flow rate setting.

Abstract: An object of the present invention is to provide a fluid mixing system able to mix the fluids of different lines by any ratio and control the flow rates of even pulsating fluids, able to control the flow rate of even a pulsating fluid, compact in configuration and able to be installed in a narrow space, and enabling easy pipe laying and pipe connection at the time of installation.

Abstract: A pinch valve is provided with a main body (10) accommodating a tube body (11), a cylinder body (2) having an upper cylinder portion (17) and a lower handle support portion (3), a piston accommodated in the cylinder portion, a pressing piece (9) fixed to the piston for pressing the tube body, a cylindrical handle (1), a hollow stem (4), and a piston pusher (5, 6). The handle has a female screw portion, and a male screw portion having a pitch larger than the pitch of the female screw portion and adapted to be screwed with the female screw portion formed on the handle support portion. The stem has a male screw portion adapted to be screwed with the female screw portion of the handle on outer periphery, and is accommodated in the cylinder body. The piston pusher is inserted into the stem so that the bottom end surface thereof comes into contact with the top end of the piston and is urged toward the piston by a spring.

Abstract: A valve includes a valve body (1, 2), a tube (3) made of an elastomer extending through the inside of the valve body, and a roller (23) and a pressing surface (14) disposed facing each other across the tube (3). The roller (23) can be brought close to the pressing surface (14) to collapse the tube (3) between the roller (23) and pressing surface (14) and close the flow passage in the tube (3), and the roller (23) can be moved along the tube (3) to make a collapsed position where the tube (3) is collapsed by the roller (23) and the pressing surface (14) move along the flow passage axis of the tube (3) while maintaining the flow passage in the closed state.

Abstract: A fluid-operated valve comprises a first valve chamber (16) and a second valve chamber (25) communicating with each other through a through-hole (21), a first cylinder chamber (39) formed adjacent to the first valve chamber (16) and accommodating a first piston (6) so as to be slidable therein, a valve body (3) positioned in the second valve chamber (25) and adapted to come into contact with or move away from a valve seat (22) around the through-hole (21), a valve stem (4) having one end connected to the first piston (6) and the other end connected to the valve body (3), and an annular diaphragm (8) having an inner peripheral portion fixed to the valve stem (4) and an outer peripheral portion fixed to the inner peripheral surface of the first valve chamber (16). The first piston (6) is urged by a spring (9) to bring the valve body (3) into contact with the valve seat (22).

Abstract: A pinch valve is provided with a main body (10) accommodating a tube body (11), a cylinder body (2) having an upper cylinder portion (17) and a lower handle support portion (3), a piston accommodated in the cylinder portion, a pressing piece (9) fixed to the piston for pressing the tube body, a cylindrical handle (1), a hollow stem (4), and a piston pusher (5, 6). The handle has a female screw portion, and a male screw portion having a pitch larger than the pitch of the female screw portion and adapted to be screwed with the female screw portion formed on the handle support portion. The stem has a male screw portion adapted to be screwed with the female screw portion of the handle on outer periphery, and is accommodated in the cylinder body. The piston pusher is inserted into the stem so that the bottom end surface thereof comes into contact with the top end of the piston and is urged toward the piston by a spring.

Abstract: In a constant pressure regulator according to the present invention, a diaphragm defining an air chamber with a body is clamped between the body and a cover. An air chamber defining ring provided around the air chamber is clamped between the body and the cover. The upper surface and the lower surface of the air chamber defining ring are formed with a first recess having a seal ring fitted therein for backing the annular protrusion of the diaphragm and a second recess with a seal ring fitted therein for sealing the air chamber, respectively. The diaphragm has a central cylindrical bore portion defining a fluid control potion with the plug formed on the body. A second valve chamber is defined between the diaphragm and the cover. The body is formed with a first valve chamber and an inlet flow passage, and the second valve chamber is formed with an outlet flow passage.

Abstract: A manifold valve of the invention comprises a body and respective actuators driving a plurality of valve bodies arranged within the body. The body having a valve chamber on the main flow passage side and a valve chamber on the secondary flow passage side which are communicated with each other by a connecting flow passage, and further having a main flow passage communicating with a communicating port arranged on the bottom center of the valve chamber on the main flow passage side, a branched flow passage communicating with the valve chamber on the main flow passage side, and a secondary flow passage communicating with a communicating port arranged on the bottom center of the valve chamber on the secondary flow passage side. The communicating ports on the sides of the main flow passage and the secondary flow passage are respectively provided with opening and closing valve bodies driven by the actuators.

Abstract: A manifold valve according to the present invention includes a main body (1) and actuators (2, 3) each having a valve body (46, 47). The main body is formed with at least one set of a main flow passage-side valve chamber (17) and a secondary flow passage-side valve chamber (19) which are in communication with each other through a connecting flow passage (11), a branched flow passage (9) communicating with the main flow passage-side valve chamber, a-main flow passage (6) communicating with the main flow passage-side valve chamber through a main flow passage-side communication port (13) opening at a center of a bottom of the main flow passage-side valve chamber, and a secondary flow passage (7) communicating with the secondary flow passage-side valve chamber through a secondary flow passage-side communication port (15) opening at a center of a bottom of the secondary flow passage-side valve chamber.

Abstract: In a constant pressure regulator according to the present invention, a diaphragm defining an air chamber with a body is clamped between the body and a cover. An air chamber defining ring provided around the air chamber is clamped between the body and the cover. The upper surface and the lower surface of the air chamber defining ring are formed with a first recess having a seal ring fitted therein for backing the annular protrusion of the diaphragm and a second recess with a seal ring fitted therein for sealing the air chamber, respectively. The diaphragm has a central cylindrical bore portion defining a fluid control potion with the plug formed on the body. A second valve chamber is defined between the diaphragm and the cover. The body is formed with a first valve chamber and an inlet flow passage, and the second valve chamber is formed with an outlet flow passage.

Abstract: A manifold valve of the invention comprises a body and respective actuators driving a plurality of valve bodies arranged within the body. The body having a valve chamber on the main flow passage side and a valve chamber on the secondary flow passage side which are communicated with each other by a connecting flow passage, and further having a main flow passage communicating with a communicating port arranged on the bottom center of the valve chamber on the main flow passage side, a branched flow passage communicating with the valve chamber on the main flow passage side, and a secondary flow passage communicating with a communicating port arranged on the bottom center of the valve chamber on the secondary flow passage side. The communicating ports on the sides of the main flow passage and the secondary flow passage are respectively provided with opening and closing valve bodies driven by the actuators.