Methods of lubricating fracking valves on a wellhead include mounting a distribution manifold of a grease distribution system on, adjacent to or remotely with respect to the wellhead, the distribution manifold having a plurality of manifold valves; selecting at least one of the fracking valves for lubrication; coupling at least one of the plurality of manifold valves of the grease distribution system to the at least one of the fracking valves; coupling a grease pump to the at least one of the plurality of manifold valves; opening the at least one of the plurality of manifold valves; and distributing grease from the grease pump through the at least one of the plurality of manifold valves to the at least one of the fracking valves by operation of the grease pump.

Provided is a mixer faucet configured such that a lubricant can be effectively supplied. The mixer faucet includes a fixed valve body and a movable valve body. The fixed valve body includes a hot water supply hole, a cold water supply hole, a drain hole, a first sliding surface, and a lubricant retention portion. At least a part of the lubricant retention portion is provided in a circumferentially extended region of the hot water supply hole and a circumferentially extended region of the cold water supply hole. In the circumferentially extended region, only the first sliding surface is present between the hot water supply hole and the lubricant retention portion. In the circumferentially extended region, only the first sliding surface is present between the cold water supply hole and the lubricant retention portion.

An automated zipper manifold with remotely and independently controlled and monitored valves, wherein second pressure transducers are positioned on the zipper manifold and are configured to determine a flow analysis across the valve.

A method of controlling at least one lubrication apparatus involves: determining whether vibration associated with the at least one lubrication apparatus satisfies one of a plurality of different criteria; and controlling the at least one lubrication apparatus according to whether the vibration associated with the at least one lubrication apparatus satisfies the one of the plurality of different criteria.

Provided is a life evaluating device that evaluates the life of a lubricant in a machine including a motor and a transmission mechanism that is lubricated by the lubricant and transmits power of the motor to a movable unit. The life evaluating device includes a motor-heat-value calculating unit that calculates a motor heat value on the basis of a current value of the motor, a frictional-heat-value calculating unit that calculates a frictional heat value in the transmission mechanism on the basis of rotating speed of the motor and a coefficient of friction of the transmission mechanism, a lubricant-temperature estimating unit that estimates temperature of the lubricant on the basis of the calculated frictional heat value and the calculated motor heat value, and a life estimating unit that estimates the life of the lubricant on the basis of the estimated temperature of the lubricant and information concerning impurities in the lubricant.

A system and methods according to which a controller communicates control signals to a first frac leg, which includes a wellhead operably associated with a first wellbore, a valve operably coupled to the wellhead, opposite the first wellbore, a frac line operably coupled to the wellhead, and a zipper module operably coupled to the frac line, opposite the wellhead. The first frac leg includes a first sub-controller that receives control signals from the controller. A grease system lubricates the first frac leg and the zipper module. The grease system includes a second sub-controller that receives control signals from the controller. A second frac leg is operably associated with a second wellbore. The second frac leg includes a third sub-controller that receives control signals from the controller. The first, second, and/or third sub-controllers may receive control signals from the controller via a communication bus.

A system and methods according to which a controller communicates control signals to a first frac leg, which includes a wellhead operably associated with a first wellbore, a valve operably coupled to the wellhead, opposite the first wellbore, a frac line operably coupled to the wellhead, and a zipper module operably coupled to the frac line, opposite the wellhead. The first frac leg includes a first sub-controller that receives control signals from the controller. A grease system lubricates the first frac leg and the zipper module. The grease system includes a second sub-controller that receives control signals from the controller. A second frac leg is operably associated with a second wellbore. The second frac leg includes a third sub-controller that receives control signals from the controller. The first, second, and/or third sub-controllers may receive control signals from the controller via a communication bus.

A device for injecting a fluid into a mechanical system that may undergo heating, comprising at least one body containing a thermally triggered charge generating combustion gas, ignition of the charge being able to be triggered under the action of an ignition command and/or under the effect of a heat contribution, from a heating area of the body toward the charge, a reservoir containing the fluid, means for fastening the device to the mechanical system, the fastening means adapted to put the reservoir in fluid communication with the mechanical system, and means for delivering pressurized fluid outside the reservoir through the action, directly or through intermediate means, of the combustion gases. Within the device, the fastening means comprise at least one injection sleeve provided with an outer thread coated with an anti-loosening adhesive film. The invention also relates to a mechanical system equipped with at least one such device.

A device for injecting a fluid into a mechanical system that may undergo heating, comprising at least one body containing a thermally triggered charge generating combustion gas, ignition of the charge being able to be triggered under the action of an ignition command and/or under the effect of a heat contribution, from a heating area of the body toward the charge, a reservoir containing the fluid, means for fastening the device to the mechanical system, the fastening means adapted to put the reservoir in fluid communication with the mechanical system, and means for delivering pressurized fluid outside the reservoir through the action, directly or through intermediate means, of the combustion gases. Within the device, the fastening means comprise at least one injection sleeve provided with an outer thread coated with an anti-loosening adhesive film. The invention also relates to a mechanical system equipped with at least one such device.

A device for measuring the preloading of a screw during a screwing operation including a container body in which a support is inserted, inside which there is a leadscrew into which such screw is screwed by a tightening tool, at the bottom of such support and connected thereto a transducer being arranged, capable of measuring the traction generated on itself as a result of the compression created by the screwing of the screw into the leadscrew.