2-wires single-phase water-cooled encapsulated H2 submersible motors are manufactured to Iso 9001 standards and are designed to operate coupled to hydraulic parts with the same coupling dimensions. Parts in contact with water are made of stainless steel; cooling and lubrication of the thrust block and bushes are guaranteed by a mixture of water and glycol. The H2.DRP single-phase motor does not require a start and run control box (CBH), as the capacitor is built into it the Noryl ® casing at the bottom. Supply cable connector is removable for quick and easy maintenance.
APPLICATIONS
Single-phase water-cooled encapsulated H2 motors ensure reliable working in 4” or larger diameter wells. The axial and radial water-lubricated bearings allow for maintenance-free operation.
CHARACTERISTICS OF CONSTRUCTION
The H2 motor is protected against overheating. This can happen because of: the high temperature of the pumped liquid; when the minimum distance between the pump installed and the well bottom isn’t respected; when the pump is installed in well/tanks bigger than 4” without a proper cooling system; when the pump works in shut-off. In such cases, the built-in thermal protection system stops the pump, which automatically restarts as soon as the correct working temperature parameters are restored.
The H2 motor is protected against against overload. In case the pump is partially or totally blocked, it automatically restarts as soon as the correct working temperature parameters are restored.