A multiple port connecting assembly includes a connector body and a fluid isolation adapter. The connector body includes a first fluid passage extending from an adapter port to a first connector port, a second fluid passage extending from the adapter port to a second connector port, a first seat portion disposed between the first fluid passage and the second fluid passage, and a second seat portion disposed between the second fluid passage and an open end portion of the adapter port. The fluid isolation adapter is removably assembled with the adapter port and includes an adapter body defining a first end passage that connects with the first fluid passage, a second end passage that connects with the second fluid passage, a first seal portion sealing against the first seat portion, and a second seal portion sealing against the second seat portion.

Provided is a rotary joint capable of lubricating a sealing surface of a mechanical seal forming a fluid passage through which a gas flows using a liquid even when the liquid flows through only one fluid passage. A rotary joint 1 includes a plurality of mechanical seals 7 provided in an axial direction in an annular space A between a case body 2 and a shaft body 5 to form a first intermediate flow passage 41 that connects a first outer flow passage 31 and a first inner flow passage 61 of a first fluid passage 11 through which a liquid flows to each other and form a second intermediate flow passage 42 that connects a second outer flow passage 32 and a second inner flow passage 62 of a second fluid passage 12 through which a gas flows to each other. The first outer flow passage 31 and the first inner flow passage 61 are open at mutually different positions in the axial direction with the second intermediate flow passage 42 interposed therebetween, and connects an opening of the first outer flow passage 31 and an opening of the first inner flow passage 61 in the first intermediate flow passage 41. The first intermediate flow passage 41 is formed such that a liquid flowing through the first intermediate flow passage 41 lubricates first and second sealing surfaces 71a and 72a of the mechanical seal 7 forming the second intermediate flow passage 42.

Provided is a rotary joint capable of lubricating a sealing surface of a mechanical seal forming a fluid passage through which a gas flows using a liquid even when the liquid flows through only one fluid passage. A rotary joint 1 includes a plurality of mechanical seals 7 provided in an axial direction in an annular space A between a case body 2 and a shaft body 5 to form a first intermediate flow passage 41 that connects a first outer flow passage 31 and a first inner flow passage 61 of a first fluid passage 11 through which a liquid flows to each other and form a second intermediate flow passage 42 that connects a second outer flow passage 32 and a second inner flow passage 62 of a second fluid passage 12 through which a gas flows to each other. The first outer flow passage 31 and the first inner flow passage 61 are open at mutually different positions in the axial direction with the second intermediate flow passage 42 interposed therebetween, and connects an opening of the first outer flow passage 31 and an opening of the first inner flow passage 61 in the first intermediate flow passage 41. The first intermediate flow passage 41 is formed such that a liquid flowing through the first intermediate flow passage 41 lubricates first and second sealing surfaces 71a and 72a of the mechanical seal 7 forming the second intermediate flow passage 42.

Apparatus for supplying a fluid to a device for tightening or loosening fasteners including a first fluid-transmitting element (130) having a first axis connectable with a housing of the device; a second fluid-transmitting element (140) rotatably connectable with the first element (130) about a second axis substantially perpendicular to the first axis; a third fluid-transmitting element (150) rotatably connectable with the second element (140) about a third axis substantially perpendicular to the second axis and connectable with a fluid-transmitting line; and first and second fluid conduits that transfer fluid to and from the device and the fluid-transmitting line through the first, second and third elements. The first element is rotatable 360° about the first axis; the second element is rotatable 360° about the second axis; and the third element is rotatable less than 360° about the third axis.

Apparatus for supplying a fluid to a device for tightening or loosening fasteners including a first fluid-transmitting element (130) having a first axis connectable with a housing of the device; a second fluid-transmitting element (140) rotatably connectable with the first element (130) about a second axis substantially perpendicular to the first axis; a third fluid-transmitting element (150) rotatably connectable with the second element (140) about a third axis substantially perpendicular to the second axis and connectable with a fluid-transmitting line; and first and second fluid conduits that transfer fluid to and from the device and the fluid-transmitting line through the first, second and third elements. The first element is rotatable 360° about the first axis; the second element is rotatable 360° about the second axis; and the third element is rotatable less than 360° about the third axis.

A fluid loading joint includes: a first half provided at an end of a first vacuum double pipe, the first half including a first inner pipe, a first outer pipe, and a first blocking member blocking between the first inner pipe and the first outer pipe; a second half provided at an end of a second vacuum double pipe, the second half including a second inner pipe, a second outer pipe, and a second blocking member blocking between the second inner pipe and the second outer pipe; an annular inner insulator interposed between the first inner pipe and the second inner pipe; and an annular outer insulator interposed between the first outer pipe and the second outer pipe, the outer insulator surrounding the inner insulator, with a gas space positioned between the outer insulator and the inner insulator, the gas space being formed between the first blocking member and the second blocking member.

A fluid loading joint for rotatably connecting double pipes to each other includes: a first half including a first inner pipe, a first outer pipe, and a holder, the first inner pipe being provided with a first flange, the first outer pipe accommodating the first inner pipe therein, the holder holding the first outer pipe such that the first outer pipe is rotatable; a second half including a sliding surface facing the first flange, the second half including a second inner pipe and a second outer pipe, the second inner pipe being provided with a second flange, the second outer pipe accommodating the second inner pipe therein and being provided with an outer flange that is fastened to the holder; an inner sealing member and an outer sealing member that are disposed between the first flange and the sliding surface; an inner passage provided in the second flange, the inner passage leading a leaked fluid from between the inner sealing member and the outer sealing member to an outer circumferential surface of the second flange; an outer passage provided in the outer flange, the outer passage leading the leaked fluid from an inner side to an outer side of the second outer pipe; and a leakage pipe that connects the inner passage and the outer passage between the second flange and the outer flange.

A fluid loading joint for rotatably connecting double pipes to each other includes: a first half including a first inner pipe, a first outer pipe, and a holder, the first inner pipe being provided with a first flange, the first outer pipe accommodating the first inner pipe therein, the holder holding the first outer pipe such that the first outer pipe is rotatable; a second half including a sliding surface facing the first flange, the second half including a second inner pipe and a second outer pipe, the second inner pipe being provided with a second flange, the second outer pipe accommodating the second inner pipe therein and being provided with an outer flange that is fastened to the holder; an inner sealing member and an outer sealing member that are disposed between the first flange and the sliding surface; an inner passage provided in the second flange, the inner passage leading a leaked fluid from between the inner sealing member and the outer sealing member to an outer circumferential surface of the second flange; an outer passage provided in the outer flange, the outer passage leading the leaked fluid from an inner side to an outer side of the second outer pipe; and a leakage pipe that connects the inner passage and the outer passage between the second flange and the outer flange.

Aspects of the disclosure relate to a fluid connector mechanism having an opening therethrough. The mechanism may include a connector having a connector base portion and a piston portion including a piston housing and a piston. The opening may extend from the piston portion, through the piston, and through the connector base portion. The mechanism may also include a base having first and second pairs of O-rings arranged in first and second pairs of grooves, the opening further extending from one end of the base to another. The connector base portion and the base may be configured to engage with one another and create fluid-tight seals with the O-rings while the piston is arranged outside of the base.

Aspects of the disclosure relate to a fluid connector mechanism having an opening therethrough. The mechanism may include a connector having a connector base portion and a piston portion including a piston housing and a piston. The opening may extend from the piston portion, through the piston, and through the connector base portion. The mechanism may also include a base having first and second pairs of O-rings arranged in first and second pairs of grooves, the opening further extending from one end of the base to another. The connector base portion and the base may be configured to engage with one another and create fluid-tight seals with the O-rings while the piston is arranged outside of the base.