



This deep well submersible pump is powered by a 550W copper motor at 230V / 50 Hz. It has a rotation speed of 2850 r/min to drive stainless steel impellers for continuous water extraction cycles. Copper motor windings are far superior to aluminum ones in maintaining electrical efficiency and heat resistance over long periods. It is particularly important for a pump running submerged in a well. Unlike an air-cooled motor, all heat produced by the motor is dissipated by the water in contact with it, not by the surrounding air.
The motor has thermal overload protection that causes an automatic stop if the motor becomes too hot or other abnormal operating conditions occur. This protection prevents winding burnout when the water level drops below the pump intake during prolonged extraction, a typical failure condition for submersible motors without auto-stop capability. The operating temperature range is 0°C to 40°C / 32°F to 104°F, covering the full range of ground and surface water temperatures encountered in agricultural, industrial, and residential water supply applications.
The maximum head of the deep well submersible pump is 108 m / 354.3 ft, which means it can lift water vertically from that depth to the surface against the full weight of the water column above it. With its head capacity, this unit is ideal for deep-borehole applications where shallower pumps lose pressure before the water reaches the surface discharge point. Maximum flow rate is 35 L/min under low-head conditions, with flow gradually decreasing as working head increases; operators should size their installation based on the actual working head for their particular well depth, not the maximum rating alone.
The 1 in / 2.5 cm threaded discharge outlet is compatible with standard threaded pipe fittings for water supply installations in residential, agricultural, and light industrial systems. The model designation 3QGD1-60-0.55 confirms that this pump is a single-phase, deep-bore pump designed for high-head, not high-volume or low-head, applications. The 108 m head rating provides a good margin of operation above the working depth for most common installations, including farmland irrigation, domestic water supply, and water extraction from reservoirs, canals, and rivers.
The deep well submersible pump frame is all stainless steel with a brass discharge outlet. These materials have been selected for long-term use in groundwater environments where corrosion resistance is essential for durability. Mild steel will rust quickly in wet underground conditions, adding rust particles to the water supply and compromising structural integrity within a few seasons. The brass outlet is a corrosion resistant threaded connection point that maintains its size even after repeated installation and removal.
The brass outlet prevents galling and thread damage in stainless-to-stainless threaded connections. The discharge fitting is reliable even after multiple seasonal re-installations. The combination of the stainless steel body and brass outlet construction enables the manufacturer to claim an 8-10-year service life for this pump under normal operating conditions, within the specified temperature and sand resistance parameters.
IP68 is the most rigorous standard waterproof rating for submersible electrical equipment, meaning this deep-well submersible pump is watertight for continuous immersion beyond 1 meter in depth for extended periods. That rating is not a marketing description; it is a defined IEC standard requiring the verified sealing of all electrical entry points, motor housing joints, and cable connections against water ingress under pressure. If a pump is installed at considerable depth in a borehole, IP68 ensures the electrical system remains safe across the pump's entire operating head range.
The Class F insulation rating indicates that the motor windings can withstand temperatures up to 155°C, providing a substantial margin above normal operating temperatures, even during high-load pumping cycles. The auto-stop overheat protection, paired with Class F insulation, offers two levels of thermal safety: the protection circuit prevents the motor from reaching dangerous temperatures during operation, and the Class F insulation provides a safety margin in the event of a delayed protection circuit response or short overtemperature excursions above normal.
The stainless steel filtration mesh screens out larger particles before they enter the pump impeller housing, protecting the thermoplastic impellers from abrasive damage caused by sand, grit, and suspended sediment in the groundwater. Sand resistance is rated at less than 5% sand by volume; the pump can handle moderate sediment loads, but is not designed for heavily silted water sources.
The built-in check valve prevents backflow through the pump when the motor stops, maintaining the water column pressure in the discharge pipe and preventing the pump from losing prime between operating cycles. Without a check valve, water flows back down the pipe each time the pump stops, and the system must re-prime against the full head on each restart, increasing start-up current draw and mechanical stress on the impellers. The integrated check valve eliminates that restart load and keeps the discharge pipe primed for immediate flow when the pump comes on.
The deep well submersible pump’s 7.6 cm / 3 in. diameter will fit any well casing of 7.6 cm or greater, the minimum standard borehole diameter for residential and light agricultural deep wells in most installation settings. That sizing compatibility means the pump can be dropped straight into existing standard-diameter boreholes with no changes to the casing or adapter fittings required. The slim cylindrical shape also enables the pump to be lowered and raised through the casing without binding, even in casings with slight alignment variation along their depth.
A 20 m / 66 ft pre-attached electric cord eliminates the need for underwater cable splicing at installation, removing a potential point of water ingress and simplifying the electrical connection to a single above-ground termination. This length of cord is suitable for many domestic borehole installations and for surface water extraction from reservoirs, water butts, canals, and rivers without needing an extension.