An electric fuel flow control device for use with oil and gas equipment, such as fueling systems for frac pumps. The electric fuel flow control device includes a battery, control circuitry, an enclosure that encloses the control circuity, and includes an electric fluid sensor, a valve, a beacon light, a status light, a button, an adapter cap enabling connection to a fuel tank, and a mandrel. The electric fuel flow control device may be used as a primary fuel flow control device or a backup fuel flow control device.

A tanker truck offloading system and method. The tanker truck offloading system includes a manifold in fluid communication with a tank and a plurality of tanker truck offloading stations, a tanker truck coupling at an open end of the manifold at each of the plurality of tanker truck offloading stations, and an air separator in fluid communication with the manifold.

A tanker truck offloading system and method. The tanker truck offloading system includes a manifold in fluid communication with a tank and a plurality of tanker truck offloading stations, a tanker truck coupling at an open end of the manifold at each of the plurality of tanker truck offloading stations, and an air separator in fluid communication with the manifold.

A mobile fluid transfer system. The system includes a fluid evacuation system, a fluid refill system, a sensing system and a control system. The fluid evacuation system comprises a first fluid storage container. The fluid refill system comprises a second fluid storage container. The sensing system is coupled to the fluid evacuation system and the fluid refill system. The control system is coupled to the sensing system, the fluid evacuation system and the fluid refill system. The control system is configured to determine an amount of a first fluid in the first fluid storage container based on a first signal from the sensing system, and determine an amount of a second fluid in the second fluid storage container based on a second signal from the sensing system.

A pneumatic drum emptying station locates a lance over an opening in a container. A lance can be inserted into the container to remove material from the container. Pneumatic cylinders may lock a carriage supplying the lance at a desired position along an arm. The arm, rotatable relative to a base post, may be locked in a specific position with pneumatics. Supports may assist in reloading/repositioning containers relative to the base.

A pneumatic drum emptying station locates a lance over an opening in a container. A lance can be inserted into the container to remove material from the container. Pneumatic cylinders may lock a carriage supplying the lance at a desired position along an arm. The arm, rotatable relative to a base post, may be locked in a specific position with pneumatics. Supports may assist in reloading/repositioning containers relative to the base.

A fuel storage and dispensing device that includes one or more storage tanks that are housed in a cabinet. A dispenser is fluidly attached to one or more of the storage tanks through a conduit. The dispenser includes one or more safety features to prevent inadvertent dispensing of fuel and to control the dispensing of the fuel.

A fuel storage and dispensing device that includes one or more storage tanks that are housed in a cabinet. A dispenser is fluidly attached to one or more of the storage tanks through a conduit. The dispenser includes one or more safety features to prevent inadvertent dispensing of fuel and to control the dispensing of the fuel.

For a reliable determination of through flow, it is currently necessary to work with external measurement devices in the case of flow machines. In particular, in contrast to displacer machines, there is no dependence of the through flow on the speed of rotation.

In order to be able to do without an external measurement device, the present invention goes back to the use of pressure sensors, which, in combination with the collection of additional data of the motor or of the conveyed medium, allow a determination of the through flow.

For a reliable determination of through flow, it is currently necessary to work with external measurement devices in the case of flow machines. In particular, in contrast to displacer machines, there is no dependence of the through flow on the speed of rotation.

In order to be able to do without an external measurement device, the present invention goes back to the use of pressure sensors, which, in combination with the collection of additional data of the motor or of the conveyed medium, allow a determination of the through flow.