Single-stage end-suction pumps 50Hz.

Product catalog summary

Declaration of Conformity
Lubi Electricals Limited declares that the LES Series Centrifugal Pumps and Induction Motors comply with CE directives for low voltage, machinery, and electromagnetic compatibility. The standards referenced include IEC 60335-2-41, IEC 60335-1, EN 809, IEC 61000-6-3, and IEC 61800-3 for pumps, and IEC 60034-1, IEC 60034-5, IEC 60335-1, EN 809, IEC 61000-6-2, and IEC 61000-6-3 for motors.

Introduction
The LES series comprises single-stage end-suction pumps designed according to ISO 2858, suitable for applications such as water supply, pressure boosting, industrial cleaning, fire protection, cooling systems, and irrigation.

Features & Benefits
LES pumps are non-self-priming, horizontal end-suction pumps with axial suction and radial discharge ports, complying with ISO 2858 standards. They feature a back pull-out design for easy maintenance, with a discharge range from 3 to 660 m³/hr and a head range from 4 to 158 meters, and motor ratings from 0.37 to 132 kW.

Construction
The pumps are built with robust volute casings and closed impellers, dynamically balanced to ISO 1940 standards. They are available in various materials and flange options, including cast iron, bronze, CF-8, and CF-8M.

Operating Conditions
LES pumps are designed for non-explosive, clean liquids, handling liquid temperatures from 0°C to +140°C, depending on the shaft seal type. The ambient temperature for motor operation should not exceed +45°C for EFF2 motors and +60°C for EFF1 motors.

Performance Range
The performance range is detailed for 2-pole, 4-pole, and 6-pole configurations, with specific curves and data provided for each.

Technical Data
Motors are squirrel cage induction types, with aluminum or cast iron construction depending on the frame size, meeting EFF2 efficiency standards, with EFF1 available on request.

Specifications

Models: LES 40-2002, LES 40-2502, LES 50-1252, LES 50-1602, LES 50-2002, LES 50-2502, LES 65-1252, LES 65-1602, and LES 65-160L2.
Power Range: Varies from 1.5 kW to 30 kW depending on the model.
Frame Sizes: Includes 90L, 112M, 132M, 160M, 160L, and 200L.
Impeller Diameters: Specific to each model, ranging from Ø102 mm to Ø264 mm.
Operating Frequency: 50 Hz, 2-pole design.

Performance Data

Flow Rates: Measured in liters per minute (l/min) and cubic meters per hour (m³/h), with performance curves provided for each model.
Head (H): Presented in meters, indicating the height the pump can raise water.
Efficiency: Efficiency percentages are provided, indicating the energy conversion effectiveness of each pump model.

Dimensions and Weight

Dimensions: Detailed measurements for each model, including length (L), height (H), and various other critical dimensions.
Weight: Net and gross weights are specified for each model, important for installation and handling.

Recommendations

Ensure compatibility with the intended application by reviewing the specific power, flow rate, and head requirements.
Consider the installation environment and space constraints when selecting a pump model based on its dimensions and weight.

Standards
The pumps conform to ISO 9906 Annex A, which specifies the hydraulic performance acceptance tests for rotodynamic pumps.

Models and Variants
The document covers multiple models within the LES series, such as LES 100-2002, LES 100-2502, LES 100-3152, LES 125-2502, LES 32-1254, LES 32-1604, LES 32-2004, LES 32-2504, and LES 40-1254. Each model is available in different variants (A, B, C, D) with varying power and performance characteristics.

Key Parameters
Important parameters include the pump's power rating, impeller diameter, and flow rate capacity. The document also highlights efficiency percentages for each model, indicating the pump's operational efficiency at different flow rates.

Recommendations
The document suggests selecting the appropriate pump model based on the required flow rate and head for specific applications. It also emphasizes the importance of adhering to the specified operational conditions to ensure optimal performance and longevity of the pumps.

Catalog excerpts

Single-stage end-suction pumps according to ISO 2858 DATA BOOKLET Pumps • Motors Pumping Solution

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Plant - 1 Plant - 2 Plant - 3

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South Asia of TUV SUD South Asia Private Limited certifies that NEAR KALYAN MILLS, NARODA ROAD, AHMEDABAD - 380 025, GUJARAT, INDIA and applies a Quality Management System for Design, Manufacturing, Marketing and Servicing of Electrical Motors, Mono- block Pumps, Monoset Pumps, Submersible Pumps, Submersible Drainage & Submersible Sewage Pumps, Mud Pumps, Back pullout centrifugal Pumps & Monoblocks, Horizontal Split casing centrifugal Pumps An audit was performed, Report No. 20056336 Proof has been furnished that the requirements according to are fulfilled. The certificate is Valid until 2013-03-12...

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Declaration of Conformity We Lubi Electricals Limited hereby declare under our responsibility that the products LES Series Centrifugal Pump is in conformity to the following CE directive We Lubi Electricals Limited hereby declare under our responsibility that the product Induction Motor is in conformity to the following CE directive Low voltage 2006/95/CE (73/23/EEC) Standard used : IEC 60335-2-41, IEC 60335-1 Low voltage 2006/95/CE (73/23/EEC) Standard used : IEC 60034-1, IEC 60034-5, IEC 60335-1 Machinery (98/37/EC) Standard used : EN 809 Machinery (98/37/EC) Standard used : EN 809 Electromagnetic...

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Contents Identification Single-stage end-suction pumps LES Product data Performance range Operating conditions Ambient temperature and altitude 8 Motor electrical data Technical data/ Performance curves & Data The example shows an LES 32-125 50 Hz 2 pole with a maximum impeller diameter & PN-16 flanges, with cast iron casing & impeller and with a carbon/ceramic/NBR/ Type range_| Nominal diameter of discharge Nominal impeller diameter (mm)_ Code for motor speed n [min-1] Code for Impeller Diameter A = Full diameter performance Code for pipework connection A = Cast iron pump housing with cast iron...

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Product data LES Single-stage end-suction pumps Introduction LES are single stage end suction pumps according to ISO 2858. Our range also includes several model of pumps which have been developed with duty condition which are not covered in ISO 2858. Applications • • • • • • • Water Supply. Pressure boosting for high rise buildings, hotels industry etc. Industrial washing & cleaning systems. Fire Protection systems. Cooling & Air Conditioning systems. Boiler feed and condensate transfer system. Irrigation systems for fields including sprinkler & drip irrigation systems. Features & benefits Following...

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Single-stage end-suction pumps Sectional drawing * Wear ring is available on request only.

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Single-stage end-suction pumps Construction features All LES pumps up to 132 frame come with pump volute casing with feet and motor without feet (see fig. 3). Starting from 160 frame they come with volute casing with feet and motor with feet (see fig. 4). Volute casing The volute casing of the pumps are designed to be robust in construction to take the undue stresses offered by the pipe work. They have an axial suction port and radial discharge port. Standard flanges are PN 16 as per EN ANSI 250 as per ASME B16.1 are available on request. The volute casing are provided with a priming & drain...

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Operating conditions Single-stage end-suction pumps Sound/Noise Levels As shown in the table below the motor noise levels will not exceed the maximum sound pressure level [db(A)] as per Maximum sound pressure level [db(A)]-ISO 3743 Three-phase level Ambient temperature and altitude The ambient temperature for proper motor operation must In case of ambient temperature exceeding 45°C (or 60°C for EFF1) or if motor is to be installed more than 1000 metres above sea level then a higher output motor should be selected due to low cooling effect. Please refer the chart as shown in fig. 9 for selection...

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