Abstract: A wash water processing apparatus (12), a sterilization and water-purification apparatus, and a cleaning method include a control apparatus (16) formed of a storage part (16b) having stored therein an arithmetic expression capable of finding a discharge amount of processed water and a supply amount of pure water in accordance with an ozone concentration and a TOC concentration of processed water and a control part (16a) which controls the ozone supply part and TOC adjustment device (22). Supply of pure water to processed water of processed water, or discharge of processed water and supply of pure water is performed by the TOC concentration adjustment device in accordance with a result found from the arithmetic expression to reduce the TOC concentration of wash water for use in a washing processing part (11) to a value equal to or smaller than a predetermined value.

Abstract: A valve (10) in accordance with an embodiment of the present invention includes a body (1) having a space in which a stem (3) and a ball (4) are housed, wherein an inner lid body (60) fixing the ball (4) in the space liquid-tightly partitions the space into a part in which the stem (3) is housed and a part in which the ball (4) is housed.

Abstract: A lined butterfly valve and manufacturing method, the lined butterfly valve including a valve disk (2) with a core metal (20) covered with a lining layer (22) provided rotatably inside a body (3) by a stem (5). The lining layer includes a front/back-side lining part (32) provided on each of front and back sides of the core metal and an outer circumferential lining part (33) provided on an outer circumferential side of the core metal. The front/back-side lining part is provided on each of the front and back sides of the core metal in which no occurrence of warpage is assumed so as to have a thickness T1, and the outer circumferential lining part has a thickness T2 from an outer circumferential end of the core metal to a tip seal surface of an outer circumferential end of the valve disk.

Abstract: Provided are a method for filling hydrogen gas into banks, configured so as to typically maintain high-pressure banks, thereby reducing time delays for supplying hydrogen gas to a second and subsequent FCV; and a hydrogen station. The hydrogen gas filling method and the hydrogen station are characterized by: filling hydrogen gas from a compressor into a bank (target bank) of which pressure is below the preset predetermined pressure; and if there are a plurality of other target banks, selecting as the filling bank a bank that may reach the filled state the fastest by being filled with hydrogen gas from the compressor.

Abstract: An eccentric butterfly valve, suitable for high-pressure fluids, in which: even if a dimensional error among components is large, the seat ring is aligned with the disk while sealability between the seat ring and the body is ensured; for either pressure, positive pressure or counter pressure, the seal surface pressure between the disk and the seat ring is ensured to achieve sealability; and a continuous seal portion is ensured between the body and the seat ring, thereby reliably inhibiting fluid leakage, and a method of manufacturing the eccentric butterfly valve. A tapered surface 31 formed on a seat ring 20 and a step portion 30 formed on a body 2 are opposed to each other. With a corner portion 35 of the step portion 30 on a tapered surface 31 side digging into the tapered surface 31, an annular seal portion 33 is formed on an opposed plane between the body 2 and a seat ring 6.

Abstract: A wash water processing apparatus of reusing wash water includes: a washing processing part washing a subject to be washed; a wash water accommodation part into which processed water used in a washing process in the washing processing part is once accommodated; a sterilization and purification unit causing, while acting with an ozone supply function, ozone water to be contained in the processed water flowing through the wash water accommodation part in a circular manner; and a filtration mechanism part configured to include a filter and an ion-exchange resin and sequentially filtrating the processed water to be reused as wash water in the washing processing part, as the ozone water is supplied as the processed water is mixed to dilute an ozone concentration in the wash water accommodation part. In a state where the ozone concentration is adjusted, the processed water is passed through the filter and the ion-exchange resin.

Abstract: The present invention is to provide a valve state grasping system that can be easily retrofitted to any of various existing or operating valves (rotary valves) and actuators, and in particular, even facilities to which commercial power is not supplied, and allows detailed and accurate state grasping and diagnosis or failure prediction for the valve or actuator. The valve state grasping system is configured to perform, based on angular velocity data of a valve stem which opens and closes the valve, state monitoring, diagnosis, and life prediction of this valve. To the valve stem, a monitoring unit having at least a semiconductor-type gyro sensor is attachably and detachably fixed. The angular velocity data includes angular velocity data acquired from this monitoring unit in accordance with a rotational motion of a valve body from being fully open or fully closed to fully closed or fully open.

Abstract: A valve state grasping system that can be easily retrofitted to any of various existing or operating valves (rotary valves) and actuators, and in particular, even facilities to which commercial power is not supplied, and allows detailed and accurate state grasping and diagnosis or failure prediction for the valve or actuator. The valve state grasping system is configured to perform, based on angular velocity data of a valve stem which opens and closes the valve, state monitoring, diagnosis, and life prediction of this valve. To the valve stem, a monitoring unit having at least a semiconductor-type gyro sensor is attachably and detachably fixed. The angular velocity data includes angular velocity data acquired from this monitoring unit in accordance with a rotational motion of a valve body from being fully open or fully closed to fully closed or fully open.

Abstract: An eccentric butterfly valve that maintains high sealability when closed even when a high-pressure fluid is oriented in either direction of a forward flow or backflow. The valve includes a disk (23) axially supported at an eccentric position via a stem (22) inside a body (21). The disk is provided to a seat ring (24) fixed with a seat retainer (25) so as to be hermetically sealable. A flexible part is formed on an inner diameter side of the seat ring, and a spring member is mounted between the flexible part and the seat retainer. In the spring member, a load increases substantially in proportion to the magnitude of tilt of the flexible part when the disk is displaced to a seat retainer side. When the flexible part is elastically deformed, the spring member is elastically deformed in a state where contact with the seat retainer is avoided.

Abstract: A valve disk of a double eccentric butterfly valve having boss sections (3, 4) for accommodating a stem (8) and rib sections (6, 7) each extending toward outer edge portions of the valve disk in a direction intersecting a stem (8) from the boss sections are provided on a surface on one side of a disc (2), and each of the ribs respectively excluding the boss sections is provided such that a height from a surface (2a) of the disc on the side on which a distance to an end on the edge portion side of the valve disk is longer than that on the side on which a distance to an end on the edge portion side of the valve disk is short when the heights are respectively compared at positions spaced an equal distance apart from a stem center axis (20), and the butterfly valve.

Abstract: A centric butterfly valve (1) in which top and bottom boss surfaces (19, 29) are formed to be spherical, an outer peripheral end of the blade portion of the valve disk (24) is formed to be an M-shaped section part (29) with round-shaped apex parts (27) and a round-shaped valley part (28) smoothly linked, and the centric butterfly valve has a valve disk (3) having an extended part (41) obtained by successively and slightly extending the spherical surface of each of the top and bottom boss surfaces (19, 20) to a blade portion (40) side.

Abstract: A cryogenic globe valve that prevents a high sealing property and safety from being lost even through a large number of times of opening and closing for a cryogenic fluid and is easily maintained, although it has a simple structure. The cryogenic globe valve has an axial cylindrical portion as a long-neck structure extended to its body, in which a resin-made valve disk having a conical surface having a reduced-diameter tapered shape is attached to a lower end of an elongated stem such that the resin-made valve disk is three-dimensionally operable with respect to the stem even under an extremely low-temperature condition.

Abstract: A wedge-shaped gate valve with a branching part formed to be open in a direction orthogonal to an inner flow path of a valve box having a coupling part on both sides, and a valve disk ascends and descends from the branching part via a valve stem to open and close an annular valve seat surface. At a boundary between the coupling part and the branching part, a reinforcing thickened part having a cylindrical, cone, or truncated cone shape with a diameter gradually reducing from the branching part toward the coupling part side is provided, and the thickened part is formed by taking, as an outer shape, a cylinder, a cone, or a truncated cone with an axis P2 that is eccentric from a center line P1 of the flow path to the branching part side and is parallel to or crossing the center line P1 as a rotation axis.

Abstract: A centric butterfly valve (1) in which top and bottom boss surfaces (19, 29) are formed to be spherical, an outer peripheral end of the blade portion of the valve disk (24) is formed to be an M-shaped section part (29) with round-shaped apex parts (27) and a round-shaped valley part (28) smoothly linked, and the centric butterfly valve has a valve disk (3) having an extended part (41) obtained by successively and slightly extending the spherical surface of each of the top and bottom boss surfaces (19, 20) to a blade portion (40) side.

Abstract: A valve in which a backseat structure is formed at a height to easily prevent penetration of fluid with high accuracy from outside a bonnet to inhibit an increase in internal pressure. In a state in which a packing for sealing (5) is attached inside a bonnet (10) in a longneck structure, a stem (3) is axially inserted and a flow path (13) inside a valve box (2) is provided to be opened and closed by a valve body (4). The bonnet is divided into an upper bonnet (11) and a lower bonnet (12) at a position higher than a position at which a fluid flowing inside the valve box ascends in a liquid state. A backseat mechanism (42) has a fixed-side seal surface (21) formed on a lower end side of the upper bonnet and a movable-side seal surface (41) on an outer peripheral surface of the stem.

Abstract: A lock device for a coupling part of a piping or valve of a raw-material container or the like, capable of preventing looseness and erroneous operation of a coupling, and having favorable stability because the device is fixed as a force is applied to a direction of additionally fastening the coupling. The lock device is provided for achieving prevention of looseness of a coupling part (4) formed of a screwed member (20) and a screwing member (21) side, and includes a clamp member (42) for additional fastening attached to the screwed member side, a clamp member (41) for positioning and fixing attached to the screwing member side, and a screw member (43) for fastening the clamp members. The clamp members are fastened with the screw member (43), thereby being fixed to the coupling part while a force is applied to a direction of additionally fastening the screwing member side.

Abstract: A wash water processing method and a wash water processing apparatus in a simple structure capable of effectively decomposing organic matters and killing bacteria contained in wash water, extending the life of a filter of a filtration apparatus and an ion-exchange resin and, furthermore, extending a bacteria-killing/washing interval of a washing processing part. In the wash water processing apparatus (11) and the washing method, a wash water accommodation part (12) into which processed water processed in a washing processing part (10) flows and a filtration mechanism part (14) are connected and the wash water accommodation part has connected in a circulatable manner thereto an inflow flow path and an outflow flow path of a sterilization and purification unit which organically couples respective functions of an ozone supply part which supplies ozone, an ultraviolet irradiation part which irradiates with ultraviolet rays, and a photocatalysis part which causes a photocatalyst to act.

Abstract: An apparatus for valve-seat inspection and pressure-resistance inspection for valves which can successively perform a valve-seat inspection and a pressure-resistance inspection on a valve and can quickly and correctly inspect valves, by highly-accurately detecting a leak of search gas in a substantially fixed time; a method for these inspections; and a valve. The apparatus allows a valve-seat leak and pressure-resistance inspection of a test valve, includes a clamp mounting mechanism that fixes the test valve in an inspection chamber, an inspection space adjustment mechanism that adjusts a volumetric capacity of an inspection space S of the chamber, and a gas sensor for valve-seat inspection arranged in a flow path of the test valve and a gas sensor provided in the chamber for a pressure-resistance inspection of the valve, in which the volumetric capacity of the inspection space S of the chamber is adjusted to be substantially fixed.

Abstract: Provided are a pressure-resistance inspection apparatus for valves and its inspection method, and hydrogen gas detection unit capable of detecting external leakage and specifying its position of occurrence even for valves with different sizes and shapes by performing pressure-resistance inspection with a simple structure quickly with high accuracy while preventing errors in test results, without requiring post-treatment for the valves, and also capable of mass processing by automation. Provided are a cover 2 in which a test valve 1 is accommodated in a state of being isolated from outside and a sensor 22 inside this cover 2 and capable of moving to a position close to an outer surface of the test valve 1 filled with a search gas. This sensor 22 is a gas sensor capable of detecting external leakage of the search gas from the test valve 1.

Abstract: A trunnion-type ball valve, a valve seal structure, and a valve packing in which, a seal surface pressure of a tip outer peripheral region is improved. A ball (3) provided inside a body (2) is rotatably provided via upper and lower stems (4 and 5) and is sealed with a ball seat (6). The trunnion-type ball valve has a packing attached between an outer periphery step part provided at a rear part of the ball seat and the body and a pressing mechanism by which the packing is pressed to a ball direction, and is provided with a contact surface to be contacted with a step part surface of the outer periphery step part on a tip outer diameter side of the packing and a space provided between the packing and the step part surface of the outer periphery step part on a tip inner diameter side of the packing.