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ESL & ESLH

Product catalog summary

Overview
DESMI ESL and ESLH pumps are high-efficiency, single-stage centrifugal pumps designed for various industrial applications. They are known for low maintenance costs, high efficiency, low NPSH, and flexible configurations.

Design Specifications
These pumps feature connecting flanges and electric motors that comply with international standards. They allow access to rotating parts without removing the pump casing from the piping. The impellers have double curved blades for high efficiency and low NPSH values.

Applications
The pumps are suitable for hot water circulation, fresh water circulation, HVAC, hydrophore pump, and cooling water. They can be equipped with air-driven or electrically driven priming devices.

Performance Parameters

Nominal diameter (DN): 25 to 100
Flow rate: Up to 200 m³/h (880 US gpm)
Head: Up to 65 m (210 ft)
Pressure: Up to 30 bar (435 psi)
Temperature: Up to 150°C (302°F)
Motor: Standard and EX motors
VFD: Direct or wall-mounted

Material Specifications
The pumps are available in materials such as cast iron, bronze, and stainless steel. The impeller, sealing ring, rear cover, and shaft are made from these materials, with mechanical shaft seals.

Design Details
ESL in-line pumps have a suction flange dimension identical to the discharge flange, while ESLH pumps have a larger suction flange. Both designs allow dismantling of rotating parts without removing the pump casing from the piping. The ESL in-line pump can be mounted horizontally if required.

Proven Technology
The pumps are designed for clean liquids and feature a compact monobloc design without bearings, with the rear cover integrated into the motor bracket.

Catalog excerpts

DESMI ESL centrifugal pumps are designed for special industrial applications and meet the requirements for: • Low maintenance costs • High efficiency • Low NPSH • High configuration flexibility • Installation and serviceability Design ESL pumps are single-stage centrifugal pumps with connecting flanges according to international standards. Further the pumps can be fitted with electric motors with flange dimensions also according to all international standards. The pumps have been designed in such a way that access to all rotating parts is possible without removing the pump casing from the piping. All ESL pumps are equipped with mechanical shaft seal of an approved brand. The impellers are with double curved blades, which ensure high efficiency and low NPSH values. A Variety of Industrial Applications • Hot water circulation • Fresh water circulation • HVAC • Hydrophore pump • Cooling water The pump can be equipped with an air-driven or electrically driven priming device. For more information on Industry solutions, please visit www.desmi.com MARINE & OFFSHORE DEFENCE & FUEL

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Material Specification The pumps are also available in other materials such as impeller in ductile iron and various bronze alloys. Design Details ESL In-line Pumps with 0 180 Impeller The dimension of the suction flange is identical with the dimension of the discharge flange. The line through inlet and outlet is flush with the centre line of the shaft. The pumps are equipped with one impeller wear ring. ESLH Pumps with 0 180 Impeller The dimension of the suction flange is larger than that of the discharge flange. The line through inlet and outlet is flush with the centre line of the shaft. The...

Open the catalog to page 2

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