摘要:
A fluid control system, and its valve assemblies, are used to control the feeding of fluids accurately (by operating (opening and closing) valves promptly and accurately), for the manufacture of semiconductors, magnetic thin films, biotechnical products, and other products. The fluid control system comprises a principal control line (L) and plural branch control lines (L 1 , L 2 , ...) for feeding plural types of fluid (G 1 , G 2 ,...) into a processing device (C) coupled to the principal control line, and plural valve assemblies (V) incorporated in the branch control lines (L 1 , L 2 ,...) for switching the fluids (G 1 , G 2 ,...) supplied into the processing device (C). Each of the valve assemblies (V) comprises a fluid drive valve (V') having a fluid pressure actuator (1), and an electromagnetic valve (V") integrally attached, in single housing, substantially without hoses, to the fluid drive valve (V') to feed a working fluid (A) into the fluid pressure actuator (1).
摘要:
An on-off device disposed at each of the inlet and the outlet of a fluid controller is one of five kinds of on-off devices, i.e., on-off device having a two-port valve, on-off device having a two-port valve and a three-port valve, on-off device having a two-port valve and two three-port valves, on-off device having two three-port valves, and on-off device having three three-port valves, The main bodies of two-port valves of all types of on-off devices are identical in configuration and each have an inlet and an outlet in a bottom face thereof. Main bodies of three-port valves of all types of on-off devices are identical in configuration and each formed in a bottom face thereof with an inlet, an outlet always in communication with the inlet, and an inlet-outlet subopening.
摘要:
The invention relates to a method of automatically tightening up pipe joints with a tightening machine (24), which is characterized by the steps of checking where the tightening data is proper and accumulating predetermined values of tightening conditions, actual tightening data and result of checking by means of a tightening data processor (25) provided in the tightening machine (24), and accumulating the tightening data and the result of checking by a host computer (4) connected to the processor (25) by a communication means.
摘要:
An on-off device disposed at each of the inlet and the outlet of a fluid controller is one of five kinds of on-off devices, i.e., on-off device having a two-port valve, on-off device having a two-port valve and a three-port valve, on-off device having a two-port valve and two three-port valves, on-off device having two three-port valves, and on-off device having three three-port valves, The main bodies of two-port valves of all types of on-off devices are identical in configuration and each have an inlet and an outlet in a bottom face thereof. Main bodies of three-port valves of all types of on-off devices are identical in configuration and each formed in a bottom face thereof with an inlet, an outlet always in communication with the inlet, and an inlet-outlet subopening.
摘要:
A coupling (104,80) comprises a holding member (40) having a U-shaped cross section, and a channel member (41,101) held by the holding member. The holding member (40) has an upper wall (81) formed with screw bores (84) for use in attaching the holding member to a fluid controller. The channel member (41,101) comprises a body having an inner channel and fitted in a space between the upper wall of the holding member and a lower wall thereof, a tubular upward projection (92) communicating with the inner channel of the body and having an upper end (92) inserted in a through bore (85) in the upper wall (81) of the holding member (41,101) to communicate with a downward channel of the fluid controller, and a tubular lateral projection (94) communicating with the inner channel of the body and extending laterally. The upper end of the channel member has an outward flange (93), and the through bore of the upper wall of the holding member has an inward flange (85a) for supporting the flange.
摘要:
A fluid control system, and its valve assemblies, are used to control the feeding of fluids accurately (by operating (opening and closing) valves promptly and accurately), for the manufacture of semiconductors, magnetic thin films, biotechnical products, and other products. The fluid control system comprises a principal control line (L) and plural branch control lines (L 1 , L 2 , ...) for feeding plural types of fluid (G 1 , G 2 ,...) into a processing device (C) coupled to the principal control line, and plural valve assemblies (V) incorporated in the branch control lines (L 1 , L 2 ,...) for switching the fluids (G 1 , G 2 ,...) supplied into the processing device (C). Each of the valve assemblies (V) comprises a fluid drive valve (V') having a fluid pressure actuator (1), and an electromagnetic valve (V") integrally attached, in single housing, substantially without hoses, to the fluid drive valve (V') to feed a working fluid (A) into the fluid pressure actuator (1).
摘要:
The invention further reduces a size and cost of a reactor for generating water from oxygen and hydrogen, provides high-purity water in an amount necessary for practical use safely, stably and continuously, and allows a platinum-coated catalyst layer formed on an inner wall of a reactor body to maintain high catalytic activity over a long period of time. Specifically, the reactor comprises a body made of a heat-resistant material and having an inlet and an outlet for water/moisture gas, has a gas-diffusing member provided in an internal space of the body, and has a platinum coating on an internal wall surface of the body. Hydrogen and oxygen fed from the inlet is diffused by the gas-diffusing member and then comes into contact with the platinum coating to enhance reactivity, thereby producing water from hydrogen and oxygen. A temperature of the reactor for generating moisture, wherein hydrogen is reacted with oxygen at a high temperature to generate moisture, is held to be below an ignition temperature of hydrogen or a hydrogen-containing gas so that hydrogen is reacted with oxygen while preventing explosive combustion of hydrogen and oxygen. The platinum-coated catalyst layer on the internal wall of the reactor body is formed by treating the surface of the internal wall of the body, cleaning the treated surface, forming a barrier coating of a nonmetallic material of an oxide or nitride on the wall surface, and forming the platinum coating on the barrier coating.
摘要:
The invention further reduces a size and cost of a reactor for generating water from oxygen and hydrogen, provides high-purity water in an amount necessary for practical use safely, stably and continuously, and allows a platinum-coated catalyst layer formed on an inner wall of a reactor body to maintain high catalytic activity over a long period of time. Specifically, the reactor comprises a body made of a heat-resistant material and having an inlet and an outlet for water/moisture gas, has a gas-diffusing member provided in an internal space of the body, and has a platinum coating on an internal wall surface of the body. Hydrogen and oxygen fed from the inlet is diffused by the gas-diffusing member and then comes into contact with the platinum coating to enhance reactivity, thereby producing water from hydrogen and oxygen. A temperature of the reactor for generating moisture, wherein hydrogen is reacted with oxygen at a high temperature to generate moisture, is held to be below an ignition temperature of hydrogen or a hydrogen-containing gas so that hydrogen is reacted with oxygen while preventing explosive combustion of hydrogen and oxygen. The platinum-coated catalyst layer on the internal wall of the reactor body is formed by treating the surface of the internal wall of the body, cleaning the treated surface, forming a barrier coating of a nonmetallic material of an oxide or nitride on the wall surface, and forming the platinum coating on the barrier coating.