A first fluid rotor that has a first fluid intake end and a first fluid discharge end. A second fluid rotor that has a second fluid intake end and a second fluid discharge end. The second fluid rotor is rotatably coupled to the first fluid rotor to rotate in unison with the first fluid rotor along a shared rotational axis. The first fluid intake end and the second fluid intake end are facing opposite directions. A first fluid stator surrounds the first fluid rotor. The first fluid rotor and the first fluid stator form a first fluid stage. The second fluid stator is aligned along the rotational axis. The second fluid stator and the second fluid rotor form a second fluid stage. A flow crossover sub is positioned between the first fluid stage and the second fluid stage.

Described herein is automated water pressure monitoring system. The system monitors the water use within a pressurized water system. A pressured water system may include a water line receiving water from a water source such as a well. The system includes a sensor, control module, and data repository. The sensor is mounted along a water line configured to detect pressure generated by a water pressurization system within the water line. The sensor continuously provides data regarding the pressure generated by the water within the water line. The control module is operatively coupled to the sensor and continuously receives data from the sensor. The control module is configured to detect variances over time in the pressure generated by the water.

A horizontal automatic submersible pump includes a capacitive liquid level sensor, a circuit board and a motor. The capacitive liquid level sensor is arranged inside a casing of the horizontal automatic submersible pump. The capacitive liquid level sensor is configured to detect a liquid level outside the casing of the horizontal automatic submersible pump. The output terminal of the capacitive liquid level sensor is connected to the input terminal of the circuit board. The control terminal of the motor is connected to the output terminal of the circuit board. The circuit board is configured to control the motor to work or stop according to a detection signal of the capacitive liquid level sensor. The horizontal automatic submersible pump starts and stops automatically, and the capacitive liquid level sensor means there are fewer moving parts, which makes the pump less expensive to manufacture, more dependable and longer lasting.

A watering tank circulating assembly includes a frame submerged in a livestock watering tank. A fluid pump is coupled to the frame to circulate the water when the fluid pump is turned on. In this way the fluid pump inhibits the water from freezing. A heating coil is coupled to the frame to heat the water when the heating coil is turned on, thusly inhibiting the water from freezing. A thermostatic switch is coupled to the frame and each of the fluid pump and the heating coil is electrically coupled to the thermostatic switch. The thermostatic switch turns on each of the fluid pump and the heating coil when the temperature of the water drops below a trigger temperature. Additionally, the thermostatic switch turns off each of the fluid pump and the heating coil when the temperature of the water rises about the trigger temperature.

A thrust box with improved cooling comprises a case having an interior, a first passageway and an opposing second passageway. A shaft passes through the case and the first and second passageway. A thrust runner is secured to the shaft and a pump ring is attached to the thrust runner. Advantageously, the pump ring facilitates oil rate circulation and cooling among other benefits.

A submersible well pump assembly having a motor with a shaft, a stator, a rotor coupled to the shaft, and bearing sleeves between the shaft and a bearing assembly. The rotor includes a number of rotor sections located along an axis of the shaft, where each rotor section includes a stack of rotor disks and end rings on each end of the stack. Each bearing sleeve attaches to an end ring and extends axially away from the end ring into abutment with an end of another bearing sleeve attached to an adjacent end ring.

Systems and features for improving sand control in pumps are provided. These features can be used in centrifugal pumps employed in a variety of oilfield applications, such as in electric submersible pumping systems positioned downhole in a wellbore to pump oil or other fluids. Such features include shielded anti-swirl ribs positioned in the balance chamber.

Stationary diffusers, downhole centrifugal pumps, and methods of pressurizing a fluid may include vanes configured to direct fluid flow through fluid passageways, where at least some of the vanes include a bulge or protrusion extending axially beyond the fluid passageways into an open rotational volume of the diffuser in a direction toward an impeller.

A flexible, arc-shaped cord minder clip for securing power cords or float cords to piping or a float tree of a water, sewage, grinder or sump pump, wherein the degree measure of the arc of the clip is from about 55 to about 270 degrees, wherein the width of the clip is from about 0.5 inch to about 3 inches; and wherein secured to or a molded component of an outer surface of the clip around its circumference are one or more flexible, open c-shaped cord holders. Alternatively, the c-shaped cord holder may be formed as a component of the clip and may be structured to hold the cord against a surface of the piping or float tree.

Embodiments disclosed herein describe methods for an improved electrical connector system.