A plug for a fluid valve has a stem extending along an axis between a first end and a second end, a tip secured to the first end of the stem, a plug body mounted to the stem toward the second end relative to the tip, and a valve seat between the tip and the plug body. The valve seat has a sealing surface that extends past an outer perimeter of the tip and is sized to engage a valve ring of the fluid valve, the valve seat defining an annular space that permits radial movement of the valve ring relative to the axis of the stem to align with the valve ring as pressure is applied to the valve seat.

A plug for a fluid valve has a stem extending along an axis between a first end and a second end, a tip secured to the first end of the stem, a plug body mounted to the stem toward the second end relative to the tip, and a valve seat between the tip and the plug body. The valve seat has a sealing surface that extends past an outer perimeter of the tip and is sized to engage a valve ring of the fluid valve, the valve seat defining an annular space that permits radial movement of the valve ring relative to the axis of the stem to align with the valve ring as pressure is applied to the valve seat.

A valve, including: a valve seat including a seating surface with an outer edge furthest, an inner edge, and a first portion; and a valve body including a sealing surface with an outer edge, an inner edge, and a first portion. In a closed position, the first portion of the sealing surface is in contact with the first portion of the seating surface to block flow through the valve. The sealing surface tapers from the first portion of the sealing surface to the inner edge of the sealing surface or the outer edge of the sealing surface, or the seating surface tapers from the first portion of the seating surface to the inner edge of the seating surface or the outer edge of the seating surface. In the open position, the first portion of the sealing surface is free of contact with the first portion of the seating surface.

A valve, including: a valve seat including a seating surface with an outer edge furthest, an inner edge, and a first portion; and a valve body including a sealing surface with an outer edge, an inner edge, and a first portion. In a closed position, the first portion of the sealing surface is in contact with the first portion of the seating surface to block flow through the valve. The sealing surface tapers from the first portion of the sealing surface to the inner edge of the sealing surface or the outer edge of the sealing surface, or the seating surface tapers from the first portion of the seating surface to the inner edge of the seating surface or the outer edge of the seating surface. In the open position, the first portion of the sealing surface is free of contact with the first portion of the seating surface.

A regulator valve assembly is provided for use in connection with high pressure fluid systems. The regulator valve assembly includes a valve pin having an engagement portion with a tapered surface and a valve seat having a valve pin receiving aperture defining a tapered surface on the valve seat to sealingly mate with the engagement portion of the valve pin. At least one of the valve pin and the valve seat includes an asymmetrical surface feature sized and shaped such that, when the valve pin is displaced away from the seated configuration and fluid flows through an annular space created between the engagement portion of the valve pin and the valve seat, unbalanced hydrodynamic forces arise from an interaction of the fluid with the asymmetrical surface feature. Systems incorporating the regulator valve assembly are also provided.

Valves, internal combustion engines including such valves, and methods of on-board diagnostic leak detection for a crankcase ventilation system using such valves are disclosed. Each valve has a housing defining a first port and a second port in fluid communication with one another and defining a valve seat therebetween. A biasing member biases a poppet sealing member into a normally open position (defining unrestricted flow through the valve) and a commanded actuator is connected to the poppet sealing member. The poppet sealing member has an orifice therethrough defining a restricted flow path, and, upon command, the commanded actuator moves the poppet sealing member from the open position to a restricted flow position in which the poppet sealing member is seated against the valve seat for restricted flow thorough the orifice in the poppet sealing member.

Valves, internal combustion engines including such valves, and methods of on-board diagnostic leak detection for a crankcase ventilation system using such valves are disclosed. Each valve has a housing defining a first port and a second port in fluid communication with one another and defining a valve seat therebetween. A biasing member biases a poppet sealing member into a normally open position (defining unrestricted flow through the valve) and a commanded actuator is connected to the poppet sealing member. The poppet sealing member has an orifice therethrough defining a restricted flow path, and, upon command, the commanded actuator moves the poppet sealing member from the open position to a restricted flow position in which the poppet sealing member is seated against the valve seat for restricted flow thorough the orifice in the poppet sealing member.

A safety release bleeder valve serving as a plug includes a barrel having an exterior surface and an interior throughbore surface for matingly receiving a plug having a top end with exterior threads and an interior socket for receiving a driver tool for moving the plug between an open venting state and a closed non-venting state.

A fitting with a body bound by an exterior surface and an interior surface. The exterior surface includes a quick disconnect profile extending from a first end of the body and an external thread extending from a second end of the body. The interior surface includes a first bore extending from the first end of the body and a second bore extending from the second end of the body. The fitting includes an orifice formed by the first bore, between a pin and the first bore, or between the pin and a third bore of an adjustment member installed within the first bore.

A fitting with a body bound by an exterior surface and an interior surface. The exterior surface includes a quick disconnect profile extending from a first end of the body and an external thread extending from a second end of the body. The interior surface includes a first bore extending from the first end of the body and a second bore extending from the second end of the body. The fitting includes an orifice formed by the first bore, between a pin and the first bore, or between the pin and a third bore of an adjustment member installed within the first bore.