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Vertical Multistage Pumps 50 Hz.

Vertical Multistage Pumps 50 Hz.
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Vertical Multistage Pumps 50 Hz.

Product catalog summary
Declaration of Conformity
Lubi Submersibles Limited declares that the LCR, LCRI, and LCRN pumps comply with EC directives on electrical equipment, machinery, and electromagnetic compatibility, adhering to standards such as EN 60335-1 and EN ISO 12100.
Introduction
The LCR series consists of vertical multistage centrifugal pumps designed for compact installation with horizontal suction and discharge connections, suitable for potable water and chemical pumping.
Applications
LCR pumps are used in water supply, industrial pressure boosting, process-water systems, cooling systems, water treatment, and irrigation systems.
Cost of Ownership
The initial purchase cost is minimal compared to total ownership costs, with energy and maintenance comprising 95%, where energy costs account for 89%. LCR pumps offer efficiency improvements for significant energy savings.
Product Range
The LCR series includes models with flow rates from 0.8 to 90 m³/h and temperature ranges from -20°C to +120°C, extendable to -40°C to +180°C on request, available in cast iron and stainless steel.
Construction and Materials
The pumps feature a non-self-priming, vertical multistage design with a maintenance-free mechanical shaft seal, using materials like cast iron and stainless steel, with options for EPDM or FKM rubber parts.
Motor Specifications
The pumps have a fan-cooled, 2-pole motor with power ranging from 0.37 to 45 kW, complying with EN 60034 standards, and an efficiency class of EFF 2, operating at 50 Hz.
Performance and Technical Data
Performance curves and technical data detail flow rates, pressures, and motor power requirements, designed to handle liquids with higher densities or viscosities.
Accessories and Connections
Pipework connections include oval flanges and various thread types, with options for different flange standards.
Operating Pressure and Temperature Range
The pumps operate at a maximum pressure of up to 33 bar, with liquid temperature ranges typically between -20°C to +120°C.
Pressure Specifications
The document details maximum permissible inlet and operating pressures, emphasizing that the sum of inlet pressure and pressure against a closed valve must not exceed the maximum operating pressure.
Selection and Sizing
Pump selection should consider the duty point, dimensional data, materials, connections, and shaft seal type, using performance curves for sizing.
Material and Connection Options
The LCR and LCRI models are for clean, non-aggressive liquids, while the LCRN model is for industrial liquids and acids, with various connection options available.
Shaft Seal and NPSH Considerations
Guidelines for selecting the appropriate shaft seal and calculating the Net Positive Suction Head (NPSH) to prevent cavitation are provided.
Pumped Liquids
The pumps are suitable for thin, non-explosive liquids without solid particles, with material compatibility considerations for various liquids.
Performance Curves
Guidelines for interpreting performance curves are included, stressing the importance of maintaining operation within the recommended duty range for optimal efficiency.
Specifications
The document lists multiple models under the LCRI, LCRN, and LCR series, detailing dimensions, weights, and flange types.
Performance Data
Details on flow rates, power ratings, head measurements, efficiency, and NPSH requirements are provided.
Standards and Compliance
The pumps comply with ISO 9906 Annex A standards, ensuring international quality and performance benchmarks.
Conclusion
This document serves as a comprehensive guide for selecting and understanding the specifications of vertical multistage centrifugal pumps in the LCRI, LCRN, and LCR series, providing essential data for informed decision-making.
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Catalog excerpts

Vertical Multistage Pumps 50 Hz.-1

DATA BOOKLET Vertical multistage centrifugal pumps Pumps • Motors Pumping Solution

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Vertical Multistage Pumps 50 Hz.-2

Plant - 1 Plant - 2 Plant - 3

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Vertical Multistage Pumps 50 Hz.-3

Management Service of TUV SUD Management Service GmbH Trading as TUV SUD South Asia Private Limited certifies that LUBI SUBMERStBLES LIMITED A - 2 LUBI INDUSTRIAL PARK, KHATRAJ ROAD, VADSAR, KALOL - 382 721, GUJARAT, INDIA a Quality Management System for Design, Manufacturing and Sales of Stainless Steel Fabricated Submersibles Pumpsets and Horizontal and Vertical Multistage Centrifugal Pumpsets An audit was performed. Report No. 70002560 Proof has been furnished that the requirements arc fulfilled. The certificate is valid until 2010-03-14 rOV SL)D ManHgEintfriL Sbdruty GmbH * Zsrtjfizierstgll?...

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Vertical Multistage Pumps 50 Hz.-4

Declaration of Conformity We Lubi Submersibles Limited declare under our sole responsibility that the products LCR, LCRI and LCRN to which this declaration relates, are in conformity with the Council Directives on the approximation of the laws of the EC Member States relating to: - Electrical equipment designed for use within certain voltage limits (73/23/EEC) [95] - Standards used: EN 60335-1 and EN 60335-2-51 - Machinery (98/37/EC) - Standard used: EN ISO 12100 - Electromagnetic compatibility (89/336/EEC) - Standards used: EN 61000-6-2 and EN 61000-6-3 Nosotros Lubi Sumergibles Limitada declaramos...

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Vertical Multistage Pumps 50 Hz.-5

Vertical multistage centrifugal pumps Product Data Performance range - LCR, LCRI, LCRN Minimum cost of ownership Product range Ambient temperature Pipework connection Counter flanges for LCRN Type keys Operating and inlet pressures Maximum operating pressure and temperature range 9 Operating range of the shaft seal 9 Maximum inlet pressure 10 Minimum inlet pressure 13 How to read the curve charts 14 Guidelines to performance curves 14 Pumped liquids Motor data Standard motors for LCR, LCRI, LCRN - 50 Hz 16 Performance curves/technical data

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Vertical Multistage Pumps 50 Hz.-6

Product data Vertical multistage centrifugal pumps This data booklet deals with LCR.LCRI and LCRN pumps. LCR, LCRI and LCRN pumps are vertical multistage centri- fugal pumps. The vertical in-line design enables the pump to be installed in a horizontal plane single system where the suction and discharge connections are in the same horizontal plane and have the same pipe sizes. This design provides a more compact pump design saving space and easy pipework. Lubi LCR pumps come with various sizes and various numbers of stages to provide the flow and the pressure for different site conditions. LCR...

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Vertical Multistage Pumps 50 Hz.-7

Product data Vertical multistage centrifugal pumps Minimum cost of ownership The initial cost of purchasing a pump is fraction of the total cost of owning and operating a pump over its entire life span. Energy cost + Maintenance cost contribute to a 95% of the total cost of ownership and out of this 89% is energy cost. This is where Lubi LCR pump can make a difference against other pumps. When pumps are running round the clock even a 10% increase in pump efficiency will quickly transform into significant saving in energy cost month after month over the entire lift span of the pump. Recommended...

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Vertical Multistage Pumps 50 Hz.-8

Product data Vertical multistage centrifugal pumps Product range Recommended version. Alternative version.

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Vertical Multistage Pumps 50 Hz.-9

Product data Vertical multistage centrifugal pumps Product range Recommended version. Alternative version.

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Vertical Multistage Pumps 50 Hz.-10

Product data Vertical multistage centrifugal pumps The LCR pumps are non-self-priming, vertical multistage centrifugal pumps. The pump consists of a base and a pump head. The chamber stack and the outer sleeve are secured between the pump head and the base by means of tiebolts. The base has suction and discharge connections on the same level (in-line). All pumps are equipped with a maintenance-free mechanical shaft seal of the cartridge type as standard. Shaft seal (cartridge type) Outer sleeve Pump head LCR, LCRI and LCRN pumps are fitted with a totally enclosed, fan-cooled, 2-pole motor with...

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Vertical Multistage Pumps 50 Hz.-11

Vertical multistage centrifugal pumps Sectional drawing Pump Head Outer sleeve outer sleeve Neck ring Shaft seal Rubber parts Cast iron Stainless steel Stainless steel Stainless steel Stainless steel Cast iron Sectional drawing Materials : LCRI, LCRN Pump head Pump head Neck ring Shaft seal Base plate Rubber parts Cast iron Stainless steel Stainless steel Stainless steel Cartridge type Cast iron Outer sleeve outer sleeve Stainless steel Stainless steel Stainless steel Outer sleeve outer sleeve Stainless steel Stainless steel Stainless steel

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Vertical Multistage Pumps 50 Hz.-12

Vertical multistage centrifugal pumps Sectional drawing Pump head Motor stool Outre sleeve outer sleeve Neck ring Shaft seal Bearing ring bearing ring Rubber parts Cast iron Cast iron Stainless steel Stainless steel Stainless steel Stainless steel Cast iron graphite filled Sectional drawing Materials : LCRN Pump head Motor stool Outer sleeve outer sleeve Neck ring Shaft seal Bearing ring bearing ring Base plate Rubber parts Stainless steel Cast iron Stainless steel Stainless steel Stainless steel Stainless steel Stainless steel graphite filled graphite filled Cast iron

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Vertical Multistage Pumps 50 Hz.-13

Vertical multistage centrifugal pumps Type keys Type range: All impellers with reduced Number of reduced diameter Code for pipe connection Code for rubber parts Code for shaft seal Pipe connection N Change diameter of ports Basic version Carbon-graphite filled PTFE All parts stainless steel, Bronze (bearings) Special version _ Code for rubber parts Shaft seal H Balanced cartridge seal Silicon carbide Tungsten carbide

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Vertical Multistage Pumps 50 Hz.-14

Operating and inlet pressures Vertical multistage centrifugal pumps Maximum operating pressure and temperature range Operating range of the shaft seal The operating range of the shaft seal depends on operating pressure, pump type, type of shaft seal and liquid temperature. The following curves apply to clean water and water with anti-freeze liquids. Fig. 5 Operating range of standard shaft seals

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Vertical Multistage Pumps 50 Hz.-15

Operating and inlet pressures Vertical multistage centrifugal pumps Maximum inlet pressure The following table shows the maximum permissible inlet pressure. However the current inlet pressure + the pressure against a closed valve must always be lower than the maximum permissible operating pressure. If the maximum permissible operating pressure is exceeded, the conical bearing in the motor may be damaged and the life of the shaft seal reduced. Examples of operating and inlet pressures The values for operating and inlet pressures shown in the table must not be considered individually but must always...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.