LHM & LVM SERIES

Product catalog summary

Introduction
The LHM and LVM series are submerged centrifugal pumps designed for horizontal and vertical installations, respectively. These single-stage pumps offer a discharge range up to 270 m³/hr and a head range up to 95 meters. They are equipped with stainless steel jacket rewindable water-filled submersible motors, available in motor ratings from 2.2 to 22.0 kW for three-phase power supply.

Applications
The pumps are suitable for industrial cooling, washing systems, fire fighting, domestic and commercial water supply, sprinkler systems, and dewatering applications.

Features and Benefits
The pumps feature a compact design, easy installation without the need for a foundation, non-overloading power characteristics, stainless steel motor bodies, dynamically balanced impellers, and a guide rail system for LVM models.

Technical Specifications
Operating at a standard frequency of 50 Hz with a rated speed of 2900 rpm, these pumps are designed for clear or slightly dirty water and can handle aggressive liquids if compatible materials are selected. The standard voltage range is 380-415 V with an IP68 enclosure class.

Construction and Materials
The pumps are constructed from materials such as cast iron, stainless steel, and bronze, depending on the version. Key components include the volute casing, impeller, pump shaft, and mechanical shaft seal.

Performance Data
Performance curves and technical data are provided for different models, indicating flow rates, head, and power consumption at various operating points. The pumps comply with ISO 9906:2012 standards.

Specifications
The document lists models such as LHM/LVM 32-200L2, 32-2502, 40-1252, 40-1602, 40-2002, 40-2502, and 50-1252, detailing power ratings in HP and kW, flow rates in liters per minute (l/min) and cubic meters per hour (m³/h), and head in meters (mts).

Performance Data
Performance curves are provided for each model at a rotational speed of 2900 rpm, including power consumption (PkW), head (H mts.), and efficiency (η) for different impeller diameters (Ø).

Technical Data
Dimensional data for each pump model includes diameter (DNd), various heights (h1, h2, h3), lengths (L, LB), and weights (net and gross), crucial for installation and operational planning.

Standards
All models conform to ISO 9906:2012 3B standards, ensuring quality and performance consistency.

Key Observations
The efficiency of the pumps varies with the impeller diameter, with some models achieving efficiencies up to 72%. Detailed performance curves assist in selecting the appropriate pump model based on specific application requirements.

Catalog excerpts

DATA BOOKLET Submerged centrifugal pumpset

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Photographs of a few Manufacturing Units

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Submerged centrifugal pumpset Type key The example shows a LHM 32-160, 50 Hz pump with a maximum impeller diameter, with cast iron casing & cast iron impeller. Product data Introduction Applications Features and benefits Pumped liquids Typical installation LHM Example LHM 32 -160 2 A A Type range LHM = Horizontal pump series LVM = Vertical pump series Nominal diameter of discharge port (DN) Nominal impeller diameter (mm) Code for motor speed n [min-¹] 2 = 2900 min-¹ Code for Impeller Diameter A = Full diameter performance B = Diameter 1 performance C = Diameter 2 performance D = Diameter 3 performance...

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Submerged centrifugal pumpset Introduction Operating conditions LHM are horizontal, single-stage, submerged centrifugal pumps, whereas LVM are vertical, single-stage, submerged centrifugal pumps. Flow range Head range LHM have axial suction and radial discharge port whereas LVM have vertical discharge port. Ambient temperature These pumps have the discharge range up to 270 m³/hr and head range up to 95 metres. Motor ratings are 2.2 to 22.0 kW for three phase power supply. Liquid temperature range: 0°C to +50°C Type Ratings Enclosure class These pumps are offered with a mechanical shaft seal to...

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Submerged centrifugal pumpset

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Submerged centrifugal pumpset Sectional drawing 2 Volute casing Bronze Cast iron CF-8M CF-8 Cast iron Cast iron Impeller Bronze Cast iron CF-8M CF-8 CF-8 Bronze Adaptor Bronze Cast iron CF-8M CF-8 Cast iron Cast iron Stator body S.S.304 S.S.202 S.S.316 S.S.304 S.S.202 S.S.202 Pump shaft S.S.304 S.S.410 S.S.316 S.S.304 S.S.410 S.S.410 Lower bearing housing Bronze Cast iron CF-8M CF-8 Cast iron Cast iron Mechanical shaft seal Carbon/ceramic Carbon/ceramic Carbon/ceramic Carbon/ceramic Carbon/ceramic Carbon/ceramic Suction flange Bronze Cast iron CF-8M CF-8 Cast iron Cast iron Delivery flange Bronze...

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Submerged centrifugal pumpset Sectional drawing 15 Volute casing Cast iron CF-8M CF-8 Bronze Cast iron Cast iron Impeller Cast iron CF-8M CF-8 Bronze CF-8 Bronze Adaptor Cast iron CF-8M CF-8 Bronze Cast iron Cast iron Stator body S.S.202 S.S.316 S.S.304 S.S.304 S.S.202 S.S.202 Pump shaft S.S.410 S.S.316 S.S.304 S.S.304 S.S.410 S.S.410 Lower bearing housing Cast iron CF-8M CF-8 Bronze Cast iron Cast iron Mechanical shaft seal Carbon/ceramic Carbon/ceramic Carbon/ceramic Carbon/ceramic Carbon/ceramic Carbon/ceramic Delivery flange elbow Cast iron CF-8M CF-8 Bronze Cast iron Cast iron Delivery flange...

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Submerged centrifugal pumpset Sectional drawing 13 12 6 15 Volute casing Cast iron CF-8M CF-8 Bronze Cast iron Cast iron Impeller Cast iron CF-8M CF-8 Bronze CF-8 Bronze Adaptor Cast iron CF-8M CF-8 Bronze Cast iron Cast iron Stator body S.S.202 S.S.316 S.S.304 S.S.304 S.S.202 S.S.202 Pump shaft S.S.410 S.S.316 S.S.304 S.S.304 S.S.410 S.S.410 Lower bearing housing Cast iron CF-8M CF-8 Bronze Cast iron Cast iron Mechanical shaft seal Carbon/ceramic Carbon/ceramic Carbon/ceramic Carbon/ceramic Carbon/ceramic Carbon/ceramic Delivery flange elbow Cast iron CF-8M CF-8 Bronze Cast iron Cast iron Delivery...

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