Leo - Qdx-1.5-32-0.75La - 750 Watt - 1.0 Hp - High Pressure Alumunium Body Submersible Pump With Float Switch For Automatic Operation - European Standard Water Pump

LEO QDX1.5-32-0.75LA Submersible Drainage Pump, Discharge 1”, 0.75kW, 220V, 50Hz, Head 33~13m, Flow 8.5~133L/min - Single Phase

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LEO QDX-1.5-32-0.75LA 1 HP Submersible Water Pump with Automatic Float Switch – 750 W

The LEO QDX-1.5-32-0.75LA Submersible Water Pump is a 750 W (0.75 kW), 1 HP electric water pump designed for water transfer, drainage, agricultural irrigation, household water management and other suitable pumping applications. Featuring a high-head hydraulic design, a durable cast iron pump body, an aluminium alloy motor casing, an AISI 304 stainless steel shaft, a PPO impeller and an integrated float switch, this model combines practical construction with automatic water-level-controlled operation.

Designed to operate in a submerged installation, the LEO QDX-1.5-32-0.75LA draws water through its intake and delivers it through a 1-inch (25 mm) outlet. Its maximum pumping head of 32 metres makes it suitable for applications requiring vertical water transfer, while its maximum listed flow rate of 117 litres per minute supports higher-volume water movement under favourable operating conditions.

The integrated float switch enables automatic switching in a compatible installation, reducing the need for manual operation. The pump is suitable for specified dirty-water applications involving water with limited suspended particles, provided the liquid remains within the manufacturer's permitted temperature, pH and solids limits. It is designed for residential, agricultural and light-duty commercial water management rather than heavy-solids sewage or sludge pumping.

Key Features and Benefits

• 750 W / 1 HP motor: Provides pumping power for suitable water transfer, drainage, irrigation and tank-filling applications.
• Maximum pumping head of 32 metres: Supports water delivery against significant vertical lift, subject to actual flow requirements and installation losses.
• Maximum flow rate of 117 L/min: Provides a high maximum-flow rating under suitable operating conditions. Actual delivery decreases as total pumping head increases.
• Automatic float switch: Allows the pump to switch according to water-level changes when installed and adjusted for the intended application.
• Cast iron pump body: Provides a robust structural housing for regular pumping duties in suitable water conditions.
• Aluminium alloy motor casing: Uses ADC12 aluminium alloy for a practical balance of strength, weight and heat dissipation.
• AISI 304 stainless steel shaft: Provides corrosion resistance and mechanical strength for the rotating assembly.
• PPO impeller: Uses polyphenylene oxide-based engineering plastic for the impeller component.
• Copper motor winding: Supports dependable electrical performance when the pump is operated within its rated conditions.
• Mechanical shaft sealing: The QDX series uses a double-end mechanical seal design to help prevent water ingress into the motor assembly.
• Stainless steel intake filter: Helps restrict the entry of larger particles into the pump.
• Built-in thermal protection: Helps protect the motor against excessive temperature under applicable fault conditions.
• IP68 protection: Provides dust-tight protection and water-ingress protection under the manufacturer's specified conditions.
• Class F insulation: Specifies the motor winding insulation's thermal class.
• European-standard design: Identified as European-standard in the supplied product specifications. Refer to the product nameplate and manufacturer documentation for applicable conformity details.

Detailed Technical Specifications

Understanding Maximum Head and Maximum Flow

When selecting a submersible water pump, maximum head and maximum flow must be understood as different performance limits. The LEO QDX-1.5-32-0.75LA has a stated maximum head of 32 metres and a maximum flow rate of 117 litres per minute. These figures represent different operating conditions and should not be interpreted as simultaneous performance.

Maximum head: The maximum head indicates the approximate vertical pumping limit under near-zero-flow conditions. It does not mean that the pump can deliver its maximum rated flow at a height of 32 metres.

Maximum flow: The maximum flow rate of 117 L/min is achieved under favourable low-head conditions. The actual volume delivered will generally decrease as the vertical lift and resistance in the delivery pipe increase.

Total pumping head: The installation's required head includes the difference in water levels and additional losses caused by pipe length, pipe diameter, elbows, valves, connectors and other restrictions. These factors must be considered when selecting a pump for a specific installation.

For example, a pump transferring water to a tank at a considerable height may deliver much less water per minute than it does when discharging through a short pipe at a low elevation. For accurate selection, consult the manufacturer's performance curve for this exact model.

Automatic Operation with Integrated Float Switch

The LEO QDX-1.5-32-0.75LA includes a float switch for automatic operation. The float moves in response to the surrounding water level and operates the switching mechanism according to its position and control arrangement.

• Automatic switching: Reduces the need for manual switching when the pump is installed in a compatible water-level-controlled arrangement.
• Water-level response: Operation depends on the float's position, available movement, cable arrangement and the intended installation.
• Tank and collection-point applications: Can be used in suitable water-transfer installations when the float's control behaviour matches the required operation.
• Unobstructed movement: The float must be free to move without becoming trapped against the tank wall, pipework or other objects.
• Electrical safety: Correct earthing, suitable protective devices and proper electrical installation remain essential.

Important: Confirm whether the float-switch arrangement is suitable for the intended tank-filling or drainage application. A float switch is not automatically equivalent to an independent high-level overflow control or comprehensive dry-run protection. Follow the manufacturer's installation instructions and do not operate the pump dry.

Construction and Component Details

HT200 Cast Iron Pump Body

The pump body is identified as HT200 cast iron in the catalogue. Cast iron provides a rigid structural housing for the hydraulic components and is suited to demanding everyday water-transfer duties within the pump's operating limits. The pump should not be used with corrosive liquids or chemical mixtures unless expressly approved by the manufacturer.

ADC12 Aluminium Alloy Motor Casing

The motor casing uses ADC12 aluminium alloy. Aluminium alloy construction offers a useful combination of structural strength, comparatively low weight and heat dissipation. Correct immersion, water temperature and operating conditions are important for maintaining the intended thermal performance.

AISI 304 Stainless Steel Shaft

The specified AISI 304 stainless steel shaft provides mechanical strength and resistance to corrosion in suitable water environments. It supports the rotating assembly and is an important component in the pump's mechanical operation.

PPO Impeller

The impeller is made from PPO engineering plastic. This component transfers rotational energy from the motor into the water flow. The pump's performance depends on the impeller design, hydraulic clearances, motor speed and total system resistance.

Copper Motor Winding and Thermal Protection

The motor uses copper winding and includes thermal protection. These features support reliable operation when the pump is supplied with the correct voltage and operated within its specified limits. Thermal protection does not eliminate the need for correct electrical protection or prevent every form of damage caused by dry running, blockage or abnormal operating conditions.

Seals and Intake Filter

The catalogue identifies NBR rubber for the O-rings and oil seal, while the QDX series specifications describe a double-end mechanical shaft seal and stainless steel intake filter. The sealing arrangement helps protect internal motor components from water ingress, while the intake filter helps limit the entry of larger particles.

Suitable Applications

• Household water transfer: Moving water between suitable storage tanks, collection pits and other compatible water sources.
• Overhead water tank filling: Pumping water to elevated storage where the required total head and delivery rate are within the pump's performance curve.
• Agricultural irrigation: Supplying water to compatible irrigation arrangements, subject to the required pressure, flow and water quality.
• Garden watering: Transferring water for garden and outdoor watering applications.
• Well and collection-point pumping: Moving suitable water from appropriate wells, sumps and collection points within the permitted installation depth.
• Drainage: Removing accumulated water from suitable pits, tanks and other collection areas.
• Construction applications: Pumping compatible accumulated water at construction sites where particle content and liquid conditions remain within specification.
• Aquaculture and fish ponds: Transferring suitable water in compatible water-management arrangements.
• Light commercial water management: General water-transfer duties where the flow, head and liquid characteristics are suitable for the pump.

Dirty-Water Compatibility and Operating Limits

This model is listed for dirty-water applications, but the term does not mean it can handle all types of wastewater, sludge or solids. The published QDX series limits specify a maximum suspended-particle passage of approximately 0.2 mm and a maximum suspended-solids content of 0.1%.

• Use only with liquids compatible with the manufacturer's permitted pH and temperature ranges.
• Do not use for thick sludge, heavy sediment, fibrous waste, large debris or sewage containing substantial solids.
• Prevent excessive sand, abrasive particles and debris from entering the intake.
• Do not use with seawater, corrosive chemicals, flammable liquids or other unapproved fluids.
• For drinking-water systems, verify the manufacturer's suitability and applicable material approvals before use.

Installation and Operating Guidelines

• Verify the supply voltage against the pump nameplate before installation.
• Use a properly earthed electrical connection and suitable circuit protection installed by a qualified technician.
• Keep the installation within the specified maximum immersion depth of 5 metres.
• Ensure the intake is unobstructed and the surrounding water meets the pump's permitted liquid conditions.
• Use a compatible 1-inch (25 mm nominal) delivery connection and appropriately sized piping.
• Minimise unnecessary pipe bends and restrictions to reduce hydraulic losses.
• Allow the float switch to move freely and test its switching operation before relying on automatic operation.
• Do not run the pump dry or continue operating it when water supply, flow or operating conditions are abnormal.
• Disconnect the electrical supply before inspecting, cleaning or servicing the pump.
• Follow the manufacturer's instructions for maintenance, seal inspection and storage.

Why Choose the LEO QDX-1.5-32-0.75LA?

The LEO QDX-1.5-32-0.75LA combines a 1 HP motor, a stated maximum head of 32 metres, a maximum flow rating of 117 L/min, a 25 mm outlet and a float switch for automatic operation. Its cast iron hydraulic body, aluminium alloy motor casing, stainless steel shaft and PPO impeller make it a practical option for suitable household, agricultural and light-duty water-transfer applications.

When correctly selected and installed, this submersible pump can simplify water movement from suitable collection points and support compatible tank-filling, irrigation and drainage requirements. Always assess the required flow at the actual pumping head rather than relying on maximum ratings alone.

Buy LEO QDX-1.5-32-0.75LA 1 HP Submersible Water Pump Online in Pakistan

Shop the LEO QDX-1.5-32-0.75LA 750 W automatic submersible water pump at JodiaBaazar.com. Designed for suitable water-transfer and drainage requirements, this model features a float switch, a 32-metre stated maximum head, a 117 L/min maximum flow rating and a durable combination of cast iron and aluminium alloy construction.

Before ordering, confirm that the model's flow and head characteristics, outlet size, electrical supply and float-switch arrangement match your intended installation.

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