A docking fixture for removal of a valve core from a valve fitting of a pressurized system includes a main body defining a hollow main channel that receives a gripping probe to remove the core of a charging valve that is part of a pressurized HVAC system. The docking fixture has a proximal end that can be connected to the HVAC fitting that houses the valve core that is to be removed and replaced. The docking fixture has a side port integrated with a slide valve that can be closed to isolate and protect a sensitive vacuum pressure gauge that might be connected to the free end the fixture's side port. The slide valve includes a sleeve and a tactile feedback mechanism that is configured to provide tactile sensation when the sleeve is positioned in one of the open position and the closed position of the slide valve.

An arrangement with a valve having a valve housing and a closure member mounted for movement in an interior space of the valve housing between a closed position and an open position by a valve drive. The closure member closes valve housing openings in the closed position and opens them in the open position. The arrangement has an attachment part with an attachment part housing and a push tube, and the push tube is mounted displaceably in the attachment part housing. The attachment part housing and the push tube together enclose a line cavity of the attachment part for conducting a fluid through the attachment part. The attachment part housing is fastened on the outside to the valve housing, and the push tube can be pushed through the interior space of the valve housing when the closure member is in the open position.

An installment method of a fluid control body and a fluid control device including a fluid control body with which processes of designing, manufacturing, and managing the fluid control body are simplified to suppress cost of manufacturing, etc, includes a cut-off step of cutting off part of a fluid pipe inside a casing, and an installment step of installing the fluid control body including an on-off valve formed by a valve seat body and a valve element, and a partition body formed by a wall portion, a lid portion, and a seal component, inside the casing in a sealed manner in a state where an operation shaft of the on-off valve is placed in a direction different from the vertical direction.

A backflow prevention assembly is disclosed including a backflow prevention valve having a valve housing including a valve inlet end and a valve outlet end; a spool spacer of predetermined length having a first end and a second end; an inlet shut-off valve; and an outlet shut-off valve, wherein the spool spacer extends between the backflow prevention valve and one of the inlet shut-off valve and the outlet shut-off valve. The entire assembly, including the backflow prevention valve, the spool spacer, the inlet shut-off valve, and the outlet shut-off valve, is a certified assembly, certified by a certifying authority prior to installation. Methods of manufacturing a backflow prevention assembly and replacing a backflow prevention assembly are also disclosed.

A backflow prevention assembly is disclosed including a backflow prevention valve having a valve housing including a valve inlet end and a valve outlet end; a spool spacer of predetermined length having a first end and a second end; an inlet shut-off valve; and an outlet shut-off valve, wherein the spool spacer extends between the backflow prevention valve and one of the inlet shut-off valve and the outlet shut-off valve. The entire assembly, including the backflow prevention valve, the spool spacer, the inlet shut-off valve, and the outlet shut-off valve, is a certified assembly, certified by a certifying authority prior to installation. Methods of manufacturing a backflow prevention assembly and replacing a backflow prevention assembly are also disclosed.

A plumbing fitting with an outer body having a flow path extending therethrough, an inner body disposed in, and axially movable along an axis relative to the outer body, and sealing configured to prevent leakage of fluid from the plumbing fitting is disclosed. The inner body has tracks and the outer body has projections that are movable. Each track has a primary, outer portion, a secondary central portion and a tertiary outer portion. The angle of inclination of the secondary central portion is greater than the angle of inclination of the primary outer portion and of the tertiary outer portion. The angle of inclination is relative to the axis of axial movement. The plumbing fitting is movable between a first sealing configuration in which the projections are arranged in the primary outer portions, and a second sealing configuration in which the projections are arranged in the tertiary outer portions.

A substrate processing apparatus includes a chamber in which a first processing space, a second processing space, a connecting space connecting the first processing space and the second processing space, a first hole connecting with the connecting space and a second hole connecting with the connecting space are formed, a first gate valve having a first valve element and closing the first hole, the first valve element sliding in the first hole, opening and closing the connecting space, and a second gate valve having a second valve element and closing the second hole, the second valve element sliding in the second hole, opening and closing the connecting space, wherein a region in which the first hole and the connecting space connect with each other and a region in which the second hole and the connecting space connect with each other are one common region.

A safety isolation plug fitting for detecting pressurized fluid in a pipe may include a body defining an inlet adapted to be in fluid communication with the pipe, an outlet, and a passageway extending between the inlet and the outlet. A valve assembly may be seated in the passageway and movable between a closed position in which fluid communication between the inlet and the outlet is inhibited, and an open position in which a pressurized fluid in the pipe can flow between the inlet and the outlet. A flow deflector can be in fluid communication with said outlet that is configured to redirect at least a portion of the pressurized fluid exiting said outlet in direction away from a user.

This invention relates to an apparatus for adapting an existing pipeline. The apparatus includes a clamp portion adapted to fit around at least part of an existing pipeline in use and at least one neck or branch portion depending from the clamp portion, and a valve means.

An example assembly includes: a valve body having a cavity therein, wherein the valve body comprises internal threads formed in a first-handed direction and an external feature; a knob having an internal feature configured to engage with the external feature of the valve body to allow the internal feature of the knob to move past the external feature of the valve body in a linear direction when assembling the knob on the valve body; and a needle disposed in the cavity of the valve body and having external threads formed in the first-handed direction and engaging with the internal threads of the valve body, the needle being coupled to the knob such that rotation of the knob and the needle results in linear movement of the needle within the valve body due to engagement of the external threads of the needle with the internal threads of the valve body.