Abstract: A degassing apparatus capable of preventing cross-contamination is provided. A degassing apparatus 1 includes degassing modules 10, 20, and 30 each having a tube unit 12 that is a gas permeable membrane separating a fluid circulation space S1 and a reduced-pressure space S2 from each other, vacuum piping 40 communicatively connected to the reduced-pressure spaces S2, a discharge device 50 that discharges gas in the reduced-pressure spaces S2 through the vacuum piping 40, atmospheric release piping 60 communicatively connected to the reduced-pressure spaces S2, an atmospheric release valve 70 capable of introducing atmosphere into the reduced-pressure spaces S2 through the atmospheric release piping 60, and a control unit 80 that controls the operation of the discharge device 50 and the atmospheric release valve 70.

Abstract: A flow direction restriction valve mechanism unit includes a pressure decreasing valve assembly that is located to freely advance or retract in a combination valve cassette attached to an in-outlet secondary side flow path formed on the side of an outlet with respect to an intermediate transmission member in a flow path, and retracts by a pressure of gas; a first coil spring urging the pressure decreasing valve assembly in a retracting direction; a check valve that is located to be freely advance or retract with respect to the pressure decreasing valve assembly, and retracts by a pressure of the gas; and a second coil spring urging the check valve in an advancing direction. A gas induction passage is formed in which the gas flows and acts on the pressure decreasing valve assembly such that the pressure decreasing valve assembly moves in the advancing direction.

Abstract: A flow direction restriction valve mechanism unit includes a pressure decreasing valve assembly that is located to be freely advance or retract in a combination valve cassette attached to an in-outlet secondary side flow path formed on the side of an outlet with respect to an intermediate transmission member in a flow path, and retracts by a pressure of gas; a first coil spring urging the pressure decreasing valve assembly in a retracting direction; a check valve that is located to be freely advance or retract with respect to the pressure decreasing valve assembly, and retracts by a pressure of the gas; and a second coil spring urging the check valve in an advancing direction. A gas induction passage H is formed in which the gas flows and acts on the pressure decreasing valve assembly such that the pressure decreasing valve assembly moves in the advancing direction.

Abstract: A non-return valve mechanism is mountable on a one-way valve device to regulate flow of a fluid. The one-way valve device includes a flow channel in which the fluid flows and a shutoff valve arranged in a middle portion of the flow channel and switchable between an open state and a closed state. The non-return valve mechanism is mountable in a mounting space downstream from the shutoff valve in the flow channel of the one-way valve device A regulator valve includes a cylindrical valve body and hits a communicating channel connecting an upstream side and a downstream side, and a small-diameter insertion portion that is cylindrical and has a smaller diameter than the valve body, and is located upstream from the valve body. The small-diameter insertion portion is configured to be placed into a small-diameter flow channel portion with a reduced flow channel diameter to close the regulator valve.

Abstract: A safety valve comprises a pressure receiving hole (20), an actuation chamber (21), a discharging hole (22) and an alloy accommodating chamber (25). An alloy (27) of a low-temperature melting point is accommodated within the alloy accommodating chamber (25). A sealing plate (33) seals the pressure receiving hole (20). This sealing plate (33) has a portion, which faces the pressure receiving hole (20), provided with a breakable sealing portion (35) that breaks up with a predetermined pressure. An actuator (28) is arranged within the actuation chamber (21). The actuator (28) has one end formed with a first back-up portion (30) which supports the breakable sealing portion (35) and has the other end formed with a second back-up portion (31) which is supported by the alloy (27).

Abstract: A safety valve comprises a pressure receiving hole (20), an actuation chamber (21), a discharging hole (22) and an alloy accommodating chamber (25). An alloy (27) of a low-temperature melting point is accommodated within the alloy accommodating chamber (25). A sealing plate (33) seals the pressure receiving hole (20). This sealing plate (33) has a portion, which faces the pressure receiving hole (20), provided with a breakable sealing portion (35) that breaks up with a predetermined pressure. An actuator (28) is arranged within the actuation chamber (21). The actuator (28) has one end formed with a first back-up portion (30) which supports the breakable sealing portion (35) and has the other end formed with a second back-up portion (31) which is supported by the alloy (27).

Abstract: An accommodation portion (53) is formed at a position where it faces a check valve member (42) through a chamber inlet (41a) of a check valve chamber (41). An opening means (51) is attached in the accommodation portion (53). This opening means (51) switches over between a valve opening position (Y) and a valve-opening cancellation position (X). A lock means (55) is attached between a peripheral wall of the accommodation portion (53) and the opening means (51). The lock means (55) changes over between a lock position (L) where it limits an advancement of the opening means (51) from the valve-opening cancellation position (X) and a lock cancellation position (M) where it allows the advancement. A valve-opening actuation means (60) is provided with a lock cancellation means (61). A magnetic force is made to occur between the lock cancellation means (61) and the lock means (55). The magnetic force changes over the lock means (55) to the lock cancellation position (M).

Abstract: A housing (5) is formed with a cylinder communication bore (6) able to communicate with an interior space of a gas cylinder (1), a gas passage (7) and a joint attaching portion (8). The joint attaching portion (8) is provided with an engaged portion (21). A joint (14) is attached to the joint attaching portion (8). The joint (14) is provided with a connecting portion (16) to which a gas instrument is connected, a communication passage (18), and an engaging portion (19). The connecting portion (16) is opened to provide an instrument communication bore (17). The instrument communication bore (17) communicates with the cylinder communication bore (6) through the communication passage (18) and the gas passage (7) in order. The engaging portion (19) meshes with the engaged portion (21) unseparably.

Abstract: A container valve (2) comprises a housing (3) within which a fluid inlet (5) communicates with a fluid outlet (7) via a valve seat (9) and a valve chamber (10). A closure member (15) is inserted into the valve chamber (10). A spindle (17) is inserted into a guide hole (14) which communicates with the valve chamber (10). The closure member (15) is connected to a handle (18) through the spindle (17). The handle (18) enables the closure member (15) to operate for opening and closing with respect to the valve seat (9). An annular scraper (21) is attached between the closure member (15) and a peripheral wall of the valve chamber (10). The annular scraper (21) has a lip (21a) whose inner peripheral surface is brought into contact with an outer peripheral surface of the closure member (15). A sealing member (23) is attached between the closure member (15) and the guide hole (14).

Abstract: An accommodation portion (53) is formed at a position where it faces a check valve member (42) through a chamber inlet (41a) of a check valve chamber (41). An opening means (51) is attached in the accommodation portion (53). This opening means (51) switches over between a valve opening position (Y) and a valve-opening cancellation position (X). A lock means (55) is attached between a peripheral wall of the accommodation portion (53) and the opening means (51). The lock means (55) changes over between a lock position (L) where it limits an advancement of the opening means (51) from the valve-opening cancellation position (X) and a lock cancellation position (M) where it allows the advancement. A valve-opening actuation means (60) is provided with a lock cancellation means (61). A magnetic force is made to occur between the lock cancellation means (61) and the lock means (55). The magnetic force changes over the lock means (55) to the lock cancellation position (M).

Abstract: A cylinder (32) is hermetically attached into an attaching bore (31) formed within a housing (4) and is made to advance and retreat between a take-out position (A) and a charging position (B). A check valve chamber (28) is formed within the cylinder (32). A check spring (43) resiliently pushes a check valve member (29) inserted into the check valve chamber (28) toward a check valve seat (42). The cylinder (32) has an outer surface provided with an actuation portion (50). If the actuation portion (50) is pushed, it retracts the cylinder (32) toward the charging position (B). Provided at a position opposing to the check valve member 29 through a chamber inlet (40) of the check valve chamber (28) is a receiving portion (46), which receives the check valve member (29) on a halfway while the cylinder (32) is retreating.

Abstract: A cylinder (32) is hermetically attached into an attaching bore (31) formed within a housing (4) and is made to advance and retreat between a take-out position (A) and a charging position (B). A check valve chamber (28) is formed within the cylinder (32). A check spring (43) resiliently pushes a check valve member (29) inserted into the check valve chamber (28) toward a check valve seat (42). The cylinder (32) has an outer surface provided with an actuation portion (50). If the actuation portion (50) is pushed, it retracts the cylinder (32) toward the charging position (B). Provided at a position opposing to the check valve member 29 through a chamber inlet (40) of the check valve chamber (28) is a receiving portion (46), which receives the check valve member (29) on a halfway while the cylinder (32) is retreating.

Abstract: An attachment of a gas charger for a gas container is adapted to be mounted to a valve device with a check valve and to be used for forcedly opening a spring-closed type check valve by means of a charging pressure of a fresh gas. The attachment is provided with a gas charging mouthpiece detachably secured to a valve box of the valve device, a piston supporting member movable together with the gas charging mouthpiece, and a valve-opening piston. The valve-opening piston is sealingly supported by the piston supporting member in such a condition as being freely movable in the diametrical direction and is detachably sealingly fitted into a received pressure removing cylinder room of a check valve member.

Abstract: A valve assembly with a check valve for a gas container has a check valve chamber formed in such a portion of a circumferential wall of a stop valve chamber within a valve box as being adjacent the portion on the side of a stop valve opening and closing manipulation assembly and the portion on the side of a gas outlet port. Within the check valve chamber a check valve body is resiliently urged to a check valve seat for valve closing by means of a checking spring. A check valve body opening member for opening the check valve body is arranged so as to face the check valve body from the side of the check valve seat and is adapted to be advanced toward the check valve chamber so as to be changed over to the valve open position for opening the check valve body and to be retreated from the check valve chamber so as to be changed over to the valve opening cancellation position.

Abstract: The invention relates to a valve with a level gauge for a elongated liquidfied carbon dioxide container, comprising a body, and a level gauge having at least one articulating or flexible part between a float and a rod connected on the float to move an indicating member by a detecting member fixed thereon. The flexible part allows the float to contact the inner periphery of the container, wherein the inner periphery of the container shares a part of the weight of the float, cancelling the bending moment which is produced by the weight of the float and acting on the rod.