An improved deflator valve is described herein. The deflator valve has a main body with one or more ports, one or more vents, or port or vent slots for introducing air into or relieving pressure from within the main body in a vortex, circular flow. The deflator valve also includes a piston having an O-ring disposed around an outer circumference of the piston. The O-ring of the piston and the ports and vents are effective for reducing noise and deflation time and improving accuracy and ease of adjusting a pressure setting. The deflator valve can further include a dual or variable rate spring that can achieve an extensive destination pressure range. The deflator valve can also include a threadless lead in, fewer valve stem threads, or a lock chuck for enhanced valve stem attachment methods.

A mechanical bypass for a shock assembly is disclosed herein. The assembly has a damper chamber having a compression portion and a rebound portion. There is further an external reservoir in fluid communication with the rebound portion of the damper chamber via a flow path. A valve is coupled with the flow path, the valve to meter a flow of the working fluid through the flow path. A bypass port to the external reservoir is provided in the flow path and bypasses the valve. A mechanical relief valve is provided in the bypass port to block a fluid flow though the bypass port until a blow-off pressure that is higher than a normal operating pressure and less than a burst pressure of the damping chamber is provided thereon.

A relief valve has a valve body, a plunger assembly coupled to the valve body for selectively opening and closing the relief valve, and a support member secured to the valve body. A lockout lever is against the support member, forming a vertex. A spring rod is coupled to the lockout lever, and a spring is coupled to the spring rod, providing a bias force against the plunger assembly to normally close the relief valve. In a lockout position, the lockout lever is moved to pivot on the vertex against the support member to further compress the spring, which increases the bias force and, in turn, a cracking pressure of the relief valve.

A valve actuating assembly is provided that comprises a cam holder positioned within a valve body of an internal valve, a cam operably coupled to the cam holder and configured to engage a valve stem of the internal valve for moving the internal valve between a first position and a second position, and an actuating shaft extending through at least a portion of the valve body, rotation of the actuating shaft causing rotation of the cam holder and the cam, wherein the actuating shaft is removably coupled to the cam holder such that the actuating shaft can be decoupled from the cam holder and removed from the valve body, the cam holder and the cam being configured to remain positioned within the valve body when the actuating shaft is decoupled from the cam holder and removed from the valve body.

A container assembly includes a container body having a housing defining an internal compartment and an opening connected to the internal compartment. A cap having an engagement feature is mounted to the housing about the opening. A pressure relief valve is operably coupled with the internal compartment to vent fluid from the internal compartment. The pressure relief valve has a movable member movable between a first position and a second position. When the movable member is in the first position, the movable member is configured to cooperate with the engagement feature to restrict movement of the cap relative to the opening.

A depressurisation valve for a cooling system comprising: a main chamber having a main valve, a pilot line having a secondary valve and a blowdown line; the main valve being located to seal a path of the coolant system of the nuclear reactor. The main chamber is connected to the cooling circuit via the pilot line allowing coolant to enter the main chamber, and the blowdown line allows coolant to escape from the main chamber, the pilot line having a lower fluid resistance than the blowdown line. The pressure of coolant in the main chamber maintains the main valve in a closed position, and under elevated temperature and/or pressure conditions fluid is prevented from entering the main chamber via a closure of the secondary valve on the pilot line and reduce the pressure from the valve, moving it to its open position.

A hydraulic cylinder device includes: a pump; a valve body disposed so as to partition an inside of a chamber into chambers; and a non-return valve including a movable member, an elastic member and a support member. The movable member moves to open/close one opening portion that is an opening portion on the one chamber side in a case that forms a flow channel from the one chamber toward an exterior. The elastic member gives force to the movable member in a direction to close the one opening portion, and has one end portion supported by the movable member. The support member is disposed to close an opening portion on the exterior side in the case to support the other end portion of the elastic member, and has a through hole that serves as a throttle of the flow channel from the one chamber toward the exterior.

A relief device in air pump includes a main body defining an interior space and a discharge passage fluidly communicating with the interior space. The discharge passage is selectively closed and opened by a valve device. The valve device is movable in the discharge passage. The valve device includes a first sealing portion and a second sealing portion selectively engaging with the discharge passage. The valve device is movable between a first position in which one of the first and the second sealing portions engages with the discharge passage and a second position in which the other of the first and the second sealing portion engages with the discharge passage. The discharge passage has a length measuring from the first end to the second end thereof, which is smaller than a length which measures a separation distance between the first and the second sealing portions.

A capacity control valve includes a valve housing discharge, port, a suction port, and control ports, and a valve element to be brought into contact with and separated from a valve seat by a driving force of a solenoid to open and close a communication between the control and discharge ports or communication between the control port and the suction port. A sliding region is formed by an inner peripheral surface of the valve housing and an outer peripheral surface of the valve element, a groove extending in a circumferential direction is formed in at least one of the housing inner peripheral surface of the valve housing and the outer peripheral surface of the valve element, and the sliding region has a structure in which a swirling current is generated in the groove by fluid flowing from a high-pressure side to a low-pressure side in a clearance between the inner peripheral surface and the outer peripheral surface of the valve element.

A safety valve is configured for use at temperatures at or above 760° C. (1400° F.). The safety valve includes a closure assembly that can create a self-energizing, metal-to-metal seal. In one implementation, this closure assembly includes a disc with an arcuate finger that circumscribes an axis of fluid flow through a seat. The arcuate finger may extend inwardly toward this axis and downwardly toward the seat. This geometry permits the finger to flex in response to pressure of fluid that impinges on the downstream side of the disc, such flexure causing a first sealing surface on the disc to more forcefully contact a second sealing surface on a seat.