Disclosed herein is a valve apparatus for vehicles that is configured such that the sealability of a valve body can be markedly enhanced. The valve apparatus includes a valve body, a valve member and a sealing unit. The valve body is provided with at least two ports and has an internal space communicating with the ports. The valve member is rotatably installed in the internal space so as to open or close the ports. The sealing unit is provided to seal at least one of the ports. The sealing unit includes a sealing body airtightly installed on an inner surface of the corresponding port, and at least one elastic element integrally provided on a first end of the sealing body. The elastic element axially applies elastic force to the sealing body so that a second end of the sealing body comes into airtight contact with the valve member.

Disclosed is a pet water dispenser, including: a drinking tray, disposed above a water storage tank; and a water pump, configured to pump drinking water in the water storage tank to the drinking tray.

A method and apparatus according to which a hydraulic fracturing fluid is communicated to a wellhead, the apparatus including a fracturing tree connected to the wellhead and into which the hydraulic fracturing fluid is adapted to flow, a fluid conduit connected to the fracturing tree and through which the hydraulic fracturing fluid is adapted to flow before flowing into the fracturing tree, the fluid conduit defining a straight fluid flow path, and a zipper module connected to the fluid conduit and out of which the hydraulic fracturing fluid is adapted to flow before flowing through the fluid conduit. The hydraulic fracturing fluid flows along the straight fluid flow path of the fluid conduit upon flowing out of the zipper module, and continues to so flow along the straight fluid flow path until the hydraulic fracturing fluid flows into the fracturing tree.

An apparatus according to which a subterranean formation in which a wellbore extends is hydraulically fractured, the apparatus comprising first and second manifolds, the first manifold including first and second flow lines adapted to be in fluid communication with first and second pumps, respectively, the first pump being adapted to pressurize fluid received from the first flow line, and the second pump being adapted to pressurize fluid received from the second flow line, and the second manifold including a third flow line adapted to convey pressurized fluid from the first and second pumps to the wellbore to hydraulically fracture the subterranean formation in which the wellbore extends. The apparatus is adapted to be connected to another apparatus used to hydraulically fracture the subterranean formation in which the wellbore extends by moving one, or both, of the first and second flow lines relative to the third flow line.

A sampling device uses two ball valves that may be operated to take a sample while allowing flow to continue in a bypass path in a pressurized pipe. As one ball valve closes, it may capture a sample of liquid and gas that may be traveling in the pipe, then the sample may be discharged through a sampling outlet. The second ball valve may be operated simultaneously to open a bypass path while the first ball valve captures a sample. In some cases, the speed of actuation may be a function of the flow speed to capture an accurate sample. In other cases, the length of pipe from the sampling valve to the bypass junction may determine the effectiveness of the sample when actuation speed is relatively slow.

Embodiments of a valve device that reduces noise and vibration that may occur during low flow conditions in fluid couplings (e.g., valves and flow regulators). These embodiments utilize a plug and seat arrangement with geometry to prevent pressure differentials that cause the plug element to open and close in a cyclic pattern. In one embodiment, the valve device includes a seat element with an aperture and a plug element with a boss that extends into the aperture when the plug element contacts the seat element. The boss has an outer surface that forms a gap, which defines an annular area proximate the point of contact between the seat element and the plug element that is sized to reduce Venturi flow effects that cause the cyclic pattern to occur.

Embodiments of a valve device that reduces noise and vibration that may occur during low flow conditions in fluid couplings (e.g., valves and flow regulators). These embodiments utilize a plug and seat arrangement with geometry to prevent pressure differentials that cause the plug element to open and close in a cyclic pattern. In one embodiment, the valve device includes a seat element with an aperture and a plug element with a boss that extends into the aperture when the plug element contacts the seat element. The boss has an outer surface that forms a gap, which defines an annular area proximate the point of contact between the seat element and the plug element that is sized to reduce Venturi flow effects that cause the cyclic pattern to occur.

A check valve includes an internal liquid trap that prevents the backflow of gas and debris from degrading the valve. The internal liquid trap can be formed by internal passages within a valve housing. One embodiment includes three internal passages, an inlet passage, an intermediate passage, and an outlet passage, with connecting passages between each of the inlet passage and outlet package, and the intermediate package. In some embodiments, an internal trap is provided between the intermediate passage and the inlet passage.

A faucet handle includes a fluid supply line, fluid return line, and valve cartridge. A first portion of the valve cartridge provides a connecting passage between fluid supply line and fluid return line and allows fluid flow when the valve cartridge is open. A valve body having first and second openings houses the first portion of the valve cartridge. A second portion of the valve cartridge extends through first opening and extends from first portion to second portion in a direction that is substantially parallel to a mounting surface. A control handle contacts second portion of the valve cartridge. When control handle is rotated in a first direction around an axis along which the valve cartridge extends the valve cartridge is opened allowing flow from supply line to return line, and when the valve cartridge is rotated around the axis in an opposing direction the valve cartridge is closed.

A valve lockout device includes an elongated main body defining an interior cavity for receiving a valve to be secured. A cap with a notch for receiving a cable is affixed to one end of the main body, with a wing pivotably attached to the cap so that the wing movable between an open position and a closed position. The wing in the closed position is operable to secure a cable with the notch in the cap. With the lockout device in place over a valve and a cable secured around the valve and to the lockout device, the valve is secured against operation and users and operators are notified of the lockout condition.