An asymmetrical ram button is provided. In one embodiment, a system includes a blowout preventer including such a button. Particularly, the blowout preventer may include an actuation assembly having the asymmetric ram button attached to a connecting rod coupled to a piston. The asymmetric body of the button can engage an internal shoulder of the ram such that a retraction force on the actuation assembly causes the asymmetrical ram button to load against the internal shoulder. Additional systems, devices, and methods are also disclosed.

Valve and related assemblies, systems, and methods may include a self-cleaning feature that may be configured to at least partially displace material from a portion of the valve. Such valves may be utilized in a pressure exchanger.

Valve and related assemblies, systems, and methods may include a self-cleaning feature that may be configured to at least partially displace material from a portion of the valve. Such valves may be utilized in a pressure exchanger.

A displacement control valve includes a valve housing, a valve element fitted in a guide passage of the valve housing, and a solenoid for driving the valve element to open and close it, a tapered portion is provided at one of an outer peripheral surface of the valve element and a guide surface of the guide passage, and a spiral groove is provided in the other, wherein the tapered portion is set such that a gap between the valve element and the guide passage is larger toward the low-pressure side than on the high-pressure side, and the tapered portion and the spiral groove are provided such that a starting point of the tapered portion is located within the region of the spiral groove in the entire range between the starting point and the ending point of the stroke of the valve element.

A coolant valve mounting arrangement is provided for a vibrating environment with significant temperature fluctuations. The mounting arrangement includes a fastener, a housing, a compression limiter and a mounting base. The compression limiter is arranged to minimize the housing thickness in order to reduce subsequent thermal expansion effects, while maintaining packaging, stiffness and strength requirements. A spring washer can be implemented to ensure that an adequate force is applied to the housing to maintain the integrity of a leak-free interface with the mounting base.

A lock device for a coupling part of a piping or valve of a raw-material container or the like, capable of preventing looseness and erroneous operation of a coupling, and having favorable stability because the device is fixed as a force is applied to a direction of additionally fastening the coupling. The lock device is provided for achieving prevention of looseness of a coupling part (4) formed of a screwed member (20) and a screwing member (21) side, and includes a clamp member (42) for additional fastening attached to the screwed member side, a clamp member (41) for positioning and fixing attached to the screwing member side, and a screw member (43) for fastening the clamp members. The clamp members are fastened with the screw member (43), thereby being fixed to the coupling part while a force is applied to a direction of additionally fastening the screwing member side.

A lock device for a coupling part of a piping or valve of a raw-material container or the like, capable of preventing looseness and erroneous operation of a coupling, and having favorable stability because the device is fixed as a force is applied to a direction of additionally fastening the coupling. The lock device is provided for achieving prevention of looseness of a coupling part (4) formed of a screwed member (20) and a screwing member (21) side, and includes a clamp member (42) for additional fastening attached to the screwed member side, a clamp member (41) for positioning and fixing attached to the screwing member side, and a screw member (43) for fastening the clamp members. The clamp members are fastened with the screw member (43), thereby being fixed to the coupling part while a force is applied to a direction of additionally fastening the screwing member side.

A cage-mounted fluid delivery system for delivering a fluid from a water source, such as a fluid bag or an automatic water system, to animals housed in cages in high density caging systems may comprise a fluid delivery valve assembly, wherein the fluid delivery valve assembly is adapted to be coupled to the water source to facilitate the provision of fluid to animals housed in the cages. The cage-mounted fluid delivery valve assembly may further comprise a valve body and end cap, which may be joined together, that define a fluid channel. The cage-mounted fluid delivery valve assembly may further comprise sealing elements, a spring element, and an interior stem disposed at least in part in the fluid channel to open and close the fluid channel.

A cage-mounted fluid delivery system for delivering a fluid from a water source, such as a fluid bag or an automatic water system, to animals housed in cages in high density caging systems may comprise a fluid delivery valve assembly, wherein the fluid delivery valve assembly is adapted to be coupled to the water source to facilitate the provision of fluid to animals housed in the cages. The cage-mounted fluid delivery valve assembly may further comprise a valve body and end cap, which may be joined together, that define a fluid channel. The cage-mounted fluid delivery valve assembly may further comprise sealing elements, a spring element, and an interior stem disposed at least in part in the fluid channel to open and close the fluid channel.

A hydrostatic tank floor relief valve of a construction described herein provides for equalization of hydrostatic pressure of fluid in a storage tank with hydrostatic pressure of ground water surrounding the storage tank. A high efficiency grate located in a flow channel of the hydrostatic tank floor relief valve blocks debris from entering the storage tank during pressure equalization, yet does not reduce effective flow rates through a flow channel of a given diameter. The hydrostatic tank floor relief valve optionally includes an elastomeric seal surface and a stainless steel seat ring that reduce the likelihood of particulate matter disrupting valve operation, and provide a more reliable seal.