Abstract: The ball valve may be manually opened and dosed with ease and securely prevent leakage. The ball valve includes a valve body having a fluid inlet passage, fluid outlet passage, and a communicating part provided between these passages. The ball valve includes a ball having a fluid communication passage and preferably is arranged on the communicating part of the valve body for rotating about a reference axis. A substantially cylindrical ball seat which preferably has a desired opening part on its peripheral wall and is arranged between the ball and valve body. The ball valve includes a ball seat pressing part inside the valve body, adjacent to the ball seat and a presser screw screwed into the inner periphery of the valve body. The presser screw preferably presses the ball seat pressing part by adjustment of its tightening force and presses the ball seat pressing part without contacting the packing.

Abstract: A fluid draw-off block joint includes an inlet channel, an outlet channel, and a closure portion. The inlet channel has a first end communicating with an outlet channel of a single-line block joint, and a second end communicating with an inlet channel of an outlet on-off valve. The outlet channel has a first end communicating with an outlet channel of the outlet on-off valve, and a second end being open through a side surface in a line exit direction. The closure portion closes an opening of a bifurcated channel of a plural-line block joint.

Abstract: Provided is a fluid control device which can shorten an assembling time by facilitating positioning of a line support member and can suppress the increase of a height of a portion which supports fluid control equipment. A base member is formed in a rectangular frame shape by an upper lateral frame member, a lower lateral frame member, and left and right longitudinal frame members which are orthogonal to the upper and lower lateral frame members. A positioning portion for positioning each line support member is provided to the respective lateral frame members. Upper and lower end portions of each line support member are clamped between the respective lateral frame members and upper and lower cover members detachably mounted on the base member in a state where the upper and lower end portions of each line support member are positioned by the positioning portions provided to the respective lateral frame members.

Abstract: Provided is a ball valve which may be manually opened and closed with ease by reducing handle torque and can securely prevent leakage. The present invention relates to a ball valve, comprising a valve body which has a fluid inlet passage, fluid outlet passage, and a communicating part provided between these passages, a ball which has a fluid communication passage and preferably is arranged on the communicating part of the valve body to be able to rotate about a reference axis, a substantially cylindrical ball seat which preferably has a desired opening part on its peripheral wall and is arranged between said ball and said valve body, a ball seat pressing part arranged inside said valve body so as to be adjacent to said ball seat, and a presser screw arranged to be screwed to fit in the inner periphery of said valve body. The ball valve preferably performs communication and interception between the fluid inlet passage and the fluid outlet passage by the rotation of the ball about the reference axis.

Abstract: A fluid inflow passage 3 is made up of an inner communication portion 11 having an upper end opening that leads to a center portion of a bottom surface of a recess 5 in a body and a lower end surface that is closed and an outer communication portion 12 having one end that leads to the inner communication portion 11 and the other end that forms a fluid inlet. The inner communication portion 11 has a column-like protruding portion 13 provided on the lower end surface 11a so as to form a column-like non-passage portion in the inner communication portion and thereby forms a cylindrical-hollow passage. It thus becomes possible to provide a diaphragm valve 1 with which a Cv value can be increased without increasing an outer shape.

Abstract: Provided is a diaphragm valve that can improve durability when the diaphragm valve is downsized. In a pressing adaptor, a whole lower surface thereof has a taper shape at a predetermined inclination angle. A bottom surface of a depression of a body has a circular flat portion and a depression that is continued to an outer circumference of the flat portion and is depressed with respect to the flat portion. In a diaphragm, in a state where a fluid inflow channel is opened, an upper surface of an outer circumferential edge portion comes into surface contact with the taper-shaped lower surface of the pressing adaptor, and a lower surface of the outer circumferential edge portion comes into line contact with the outer circumference of the flat portion of the bottom surface of the depression of the body.

Abstract: A fluid coupling capable of reliably finding absence of the gasket, if exists, in the leak test is provided. Butted end surfaces of coupling members 1, 2 have annular sealing protrusions 7, 8 and anti-overfastening annular protrusions 9, 10 protruded further than the annular sealing protrusions 7, 8, respectively. At least one of the anti-overfastening annular protrusions 9, 10 has a communication path 31 or 32 communicating internal space Si with external space So when both the anti-overfastening annular protrusions 9, 10 butt against each other.

Abstract: A space S is formed between a fluid control device 6 requiring temperature measurement and a support member 9. A thermostat unit 10 is arranged in the space S, and a thermostat 11 is allowed to abut on the fluid control device 6 requiring the temperature measurement. The thermostat 11 is supported by an attachment jig 12 attached to the support member 9. The attachment jig 12 is made up of a first jig 13 fixed to the support member 9, a second jig 14 fixed to the first jig 13, and a third jig 15 shiftably attached to the second jig 14 and to which the thermostat 11 is fixed. A biasing member is interposed between the first jig 13 and the third jig 15.

Abstract: There is provided a fluid control apparatus with which assembling time is shortened by easily positioning the line support members, and the height of the portion supporting the fluid control devices is reduced. Each supporting frame member 11 and 12 is provided with threaded holes at required intervals. An bent-shaped first mounting portion 22 of a line support member 3 is overlapped with an outer surface of the first supporting frame member 11 and a male-threaded member 10 is screwed into one of the threaded holes of the first supporting frame member 11 from an outer side of the first mounting portion 22 whereby each of the line support members 3 is secured to the first supporting frame member 11.

Abstract: A pressure sensor apparatus which can provide an integrated fluid control apparatus in which a pressure sensor is easily replaced independently, as well as achieving a more compact structure, and a pressure sensor built-in fluid control equipment. A pressure sensor apparatus (21) includes a first passage block (22) in which a predetermined passage (22a) is formed, a second passage block (23) in which a predetermined passage (23a) is formed and which opposes to the first passage block (22) at a predetermined interval, and a pressure sensor (24) which is provided in an opposing surface of any one of the first and second passage blocks (23) and detects a fluid pressure in an inner passage (23b), and is integrated in a pressure regulator (16).

Abstract: A heating apparatus (11) has sheet heaters (12) arranged in both sides of at least one line and heating fluid control devices (2, 3, 4) and joint members (5), heat insulating boards (13, 14) made of an engineering plastic are respectively brought into contact with outer sides of the sheet heaters (12), and the heat insulating boards (13, 14) are coupled to each other by at least one thread member (15), whereby the sheet heater (12) is prevented from dropping out.

Abstract: A fluid control device that does not require a replacement space worth the length even when a rod shaped cartridge heater is used, enables maintenance if the replacement space worth the width is formed, and suppresses increase in the installation area involved therewith is provided. A concave part 2a opening to the side is formed in the supporting member 2. A heater member 3 is removably inserted from the side and fixed in the concave part 2a of the supporting member 2. The supporting member 2 is formed into a transverse cross section of a horseshoe shape by overlapping two plate shaped members 21, 22. The heater member 3 is inserted into the concave part 2a formed by two plate shaped members 21, 22 and fixed by a hexagon socket head cap screw 26.

Abstract: There is provided a fluid controlling apparatus which can satisfactorily perform heating without enlarging an installation area. Heating means 3 comprises: a planar heater 21 interposed between a base member 2 and a lower layer 5; and heat conduction enhancing spacers 22 interposed between interrupting releasers 15 and 17 disposed on an upper layer 4 and a mass flow controller 16, and the heater 21, respectively.

Abstract: The present invention provides a pressure sensor apparatus which can provide an integrated fluid control apparatus in which a pressure sensor is easily replaced independently, as well as achieving a more compact structure, and a pressure sensor built-in fluid control equipment. A pressure sensor apparatus (21) includes a first passage block (22) in which a predetermined passage (22a) is formed, a second passage block (23) in which a predetermined passage (23a) is formed and which opposes to the first passage block (22) at a predetermined interval, and a pressure sensor (24) which is provided in an opposing surface of any one of the first and second passage blocks (23) and detects a fluid pressure in an inner passage (23b), and is integrated in a pressure regulator (16).

Abstract: A heating apparatus (11) has sheet heaters (12) arranged in both sides of at least one line and heating fluid control devices (2, 3, 4) and joint members (5), heat insulating boards (13, 14) made of an engineering plastic are respectively brought into contact with outer sides of the sheet heaters (12), and the heat insulating boards (13, 14) are coupled to each other by at least one thread member (15), whereby the sheet heater (12) is prevented from dropping out.

Abstract: A pair of tape heaters 11 are arranged respectively on opposite sides of at least one line and held to the corresponding coupling members by a plurality of clips 12. Each of the clips 12 comprises a pair of side walls 13 opposed to each other as spaced apart by a predetermined distance, and a connecting wall 14 interconnecting the pair of side walls 13 at an intermediate portion of the height thereof so as to move lower portions of the side walls 13 away from each other when upper portions of the side walls 13 are subjected to a force acting to move the upper portions toward each other and to restore the side walls 13 to the original state when the force is removed.

Abstract: A pair of tape heaters 11 are arranged respectively on opposite sides of at least one line and held to the corresponding coupling members by a plurality of clips 12. Each of the clips 12 comprises a pair of side walls 13 opposed to each other as spaced apart by a predetermined distance, and a connecting wall 14 interconnecting the pair of side walls 13 at an intermediate portion of the height thereof so as to move lower portions of the side walls 13 away from each other when upper portions of the side walls 13 are subjected to a force acting to move the upper portions toward each other and to restore the side walls 13 to the original state when the force is removed.