An air valve connecting device includes a housing, a sliding member slidably engaged in the housing and having a pathway selectively aligning with a passage of the housing, a gasket attached to the sliding member for engaging with an inflation valve, a follower slidably engaged in the sliding member for engaging with the inflation valve, and an actuating knob rotatably attached to the sliding member, the actuating knob is rotatable relative to the sliding member to an angular position where the follower is anchored to the sliding member, and the actuating knob is rotatable relative to the sliding member to another angular position where the follower is released from the sliding member.

A valve assembly for a dispenser. The valve assembly includes a valve body. The valve body includes a first hoop member, a second hoop member, and a transition portion defined by the joining of the first hoop member and the second hoop member. The first hoop member includes a first hoop outer portion positioned, a first hoop inner portion, a first hoop upper surface, and a first hoop lower surface. The second hoop member includes a second hoop outer portion, a second hoop inner portion, a second hoop upper surface, and a second hoop lower surface. The second hoop inner portion extends about the longitudinal axis defining a passageway. The passageway comprises a first passageway opening, a second passageway opening opposite the first passageway opening, and a passageway surface extending from the first passageway opening to the second passageway opening.

A compressed gas storage system that includes a pressure vessel. The pressure vessel includes a first vessel portion and a second vessel portion in fluid communication with the first vessel portion. The pressure vessel includes a third vessel portion in fluid communication with the second vessel portion. The compressed gas storage system includes a first valve positioned between the first vessel portion and the second vessel portion and a second valve positioned between the second vessel portion and the third vessel portion. The first valve allows and impedes fluid flow between the first and the second vessel portions. The second valve allows and impedes fluid flow between the second and the third vessel portions.

Provided is a connector including a plug and a socket. The socket includes: a socket body in which a second liquid outflow passage and a second liquid inflow passage are formed; a ball lock mechanism that is attached to the socket body and fixes the socket body to a key ring; and a switching mechanism that switches an open state and a closed state of a rotary valve. The switching mechanism includes an opening/closing arm that regulates releasing of the fixation of the socket body to the key ring by the ball lock mechanism in the open state.

A valve assembly for a dispenser. The valve assembly includes a valve body that extends about a longitudinal axis and defines an outer surface and an inner passageway. The valve body includes a first valve body surface and a second valve body surface opposite the first valve body surface. A valve stem extends through the inner passageway and includes an outer stem surface, an inner stem surface opposite the outer stem surface, and a first orifice extending from the outer stem surface to the inner stem surface. A resilient member is disposed on at least a portion of the first valve body surface. The resilient member is made from a resilient polymeric material and has a non-linear compression profile.

A valve assembly for a dispenser. The valve assembly includes a valve body that extends about a longitudinal axis and defines an outer surface and an inner passageway. A valve stem extends through the inner passageway and includes an outer stem surface, an inner stem surface opposite the outer stem surface, and a first orifice extending from the outer stem surface to the inner stem surface. The valve assembly includes a retaining member joined to the valve stem, wherein the retaining member extends outward from the outer stem surface. The valve assembly includes a resilient member and one or more force concentrators configured to operatively engage the resilient member.

A valve device includes: an opening and closing section capable of being switched between an open state and a closed state, and a drive section having a rectilinearly moving mechanism configured to move a rectilinearly movable member in forward and backward directions; a transmission section configured to bring the opening and closing section to the closed state when the rectilinearly movable member is moved forward and to bring the opening and closing section to the open state when the rectilinearly movable member is moved backward; and a switching section capable of being switched between a connected state in which the movement of the rectilinearly movable member in the forward and backward directions is able to be transmitted to the transmission section and a disconnected state in which the movement of the rectilinearly movable member in the forward and backward directions is unable to be transmitted to the transmission section.

Valve for fluid and gaseous media, more particularly for regulating the pressure in pipelines, containing a housing of at least one upper and lower part, a pressure adjustment unit, wherein the pressure adjustment unit comprises a spindle, a spring plate, a spring holder and at least one spring, a cartridge, wherein the cartridge forms a function unit by means of which the function of the valve is defined, wherein the cartridge preferably contains an interior housing, a fastening means, a poppet and a diaphragm, wherein the diaphragm serves for dividing the housing into a medium-free and a medium-flowing area, wherein the cartridge is pre-fitted as a function unit and is disposed replaceably as a complete unit in the housing.

Embodiments of a polyethylene (“PE”) pipe servicing system of this disclosure may include a fusible PE fitting (F) providing a branch connection to a PE pipeline section or run (P), a valve (10) connected to the fitting and including quick connect/disconnect means, and a machine connectable to the valve including complementary quick connect/disconnect means. The quick connect means provide for full scope of operation, including cleaning, fusion, cool down, hot tap, plugging, and completion. No squeezing is used. The quick connect/disconnect means may include a first portion 20 of a cam profile and a second portion 40 of the cam profile complementary to that of the first. The machine may be a drilling or hot tapping machine (30T), a plugging machine (30P), or a completion machine (30C), and their associated tools. The valve and machine are more lightweight and faster and easier to use than the prior art.

A pneumatically operated gas valve mounted on a vessel containing pressurized gas. The gas valve includes a piston positioned in a cylinder with one closed end so that the piston seats against a gas outlet to close the gas valve. A control reservoir is formed in the cylinder between the piston and the closed end of the cylinder. Upon filling vessel, some of the pressurized gas enters the control reservoir to provide a control pressure behind the piston. Actuating the control mechanism vents the control reservoir, resulting in the gas valve opening rapidly to release the pressurized gas in the vessel through an exhaust port of the gas valve.