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Pump type
SE 2500-180-8

Model: SE 2500-180-8
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Pump type
SE 2500-180-8

The SE 2500-180-8 pump and the unit based on it are designed for pumping water in heating networks. The water must not contain solid particles larger than 0.2 mm and with a concentration higher than 5 mg/L.

CLIMATE VERSION

The pumps are manufactured in the UHL climate version — intended for macroclimatic regions with moderate and cold climates, placement category 4 — operation in rooms (volumes) with artificially controlled climate conditions according to GOST 15150-69.

Pump designation Supply, m3/h Pressure, m Speed, rpm Permissible cavit. reserve, m Pump efficiency, % Electric motor power, kW Pump weight, kg Unit weight, kg
SE 2500-180-8 2500 180 3000 24 86 1600 3050 8580

APPLICATION OF THE SE 2500-180-8 NETWORK PUMP

The network pump belongs to a special group of energy pumps, whose operation is characterized by fluctuations in the temperature of the supplied water over a wide range of flow rates and is designed for pumping water with a temperature of up to 120 °C in heating networks.

TECHNICAL CHARACTERISTICS

Nominal pump parameters:

Parameter Value
Flow, m³/h 2500
Head, m 180
Allowable cavitation margin, m 24
Efficiency, % 86
Temperature, °C 10-120
Rotation speed, rpm 3000

This is an important parameter that must be taken into account when designing the external network (pipeline systems and fittings) and selecting pump equipment.

DIMENSIONS AND WEIGHT

Equipment Weight, kg
Pump 3050
Unit 8580
Equipment Dimensions (width × length × height), mm
Pump 1700 × 1975 × 1345
Unit 1700 × 4770 × 1710

DRIVE

The SE 2500-180-8 network pump is driven by an asynchronous electric motor with a squirrel-cage rotor with a power of 1600 kW. The overall efficiency of this system (η) is 82 %.

MAIN REQUIREMENTS FOR THE SE 2500-180-8 PUMP DESIGN

  • High reliability and economy
  • External tightness and absence of internal leakage at rotor and stator joints
  • Long service life – average time to major overhaul not less than 40,000 hours (with all maintenance requirements met)
  • Dynamic stability over the entire operating range
  • Stable, continuously decreasing head characteristic for stable operation when pumps are connected in parallel
  • Ease of assembly, disassembly, maintenance, and high maintainability under operating conditions

DESIGN FEATURES OF THE SE 2500-180-8 NETWORK PUMP

  • Horizontal design ensures high vibration resistance, reduces shaft misalignment, and increases service life of components
  • Spiral type with horizontal split along the pump axis, providing high maintainability, ease of technical maintenance and installation, simple operation. The inlet and outlet nozzles are located at the bottom of the body, allowing assembly and disassembly without disconnecting pipelines
  • Single-stage with a double-entry impeller, made in two halves
  • Pump casing is a complex cast iron casting consisting of two parts (pump cover and pump body), with channels for semi-spiral inlet and double-spiral outlet. Bottom of the casing also includes inlet and outlet nozzles, support legs, trough-shaped brackets for leak collection, and bearing mounts. Support legs are positioned close to the pump axis to reduce misalignment during heating. Two pins fix the body relative to the foundation frame, allowing directed thermal expansion
  • Rotor is a separate assembly consisting of a shaft, double-entry impeller in two halves, bushings, protective bushings, bearings, and half-coupling. The impeller is fixed against axial movement using bushings and nuts. Thermal gaps are provided for thermal expansion
  • Rotor is relieved from axial load by using a double-entry impeller
  • Rotor supported by sliding bearings. Drive side bearing takes radial loads, the other side (sliding bearing + double-row angular contact ball bearing) takes radial and residual axial loads. Bearing lubrication is forced, from individual oil system or centralized lubrication system
  • Mechanical seals – gland type. For seal cooling, the casing has circulation cavities for pressurized cooling liquid
  • Torque transmission from motor to pump is via gear coupling

MATERIAL EXECUTION

Reliability, durability, and efficiency of the SE 2500-180-8 pump are ensured by using high-quality materials. Pump casing and bearing housings are made of cast iron grade СЧ200, providing excellent strength and corrosion resistance. Pump shaft is made of thermally enhanced steel 40X for high strength and wear resistance. Impeller and protective bushings are made of stainless steel 20X13, bushings – carbon steel 40, sealing rings – stainless steel 30X13, ensuring efficiency and durability.

ADDITIONAL SUPPLY OPTIONS

  • Mechanical seal: reduces volumetric leaks, increases energy efficiency, easy to maintain
  • Use of higher-grade materials and coatings for hydraulic parts to improve erosion resistance
  • Use of SKF rolling bearings with high precision and low friction for operation at high rotation speed, low noise, wear, heat generation, and energy consumption
  • Flexible disc coupling between motor and pump to improve vibration characteristics and reliability of the pump unit
  • VDS monitoring system: can include vibration, rotation, and temperature sensors for collecting, analyzing, and storing pump condition data, allowing timely problem detection and maintenance planning

PURCHASE

To order a specific SE 2500-180-8 unit or get consultation on selection, please contact our sales department by phone on the website or submit a request via the feedback form. We deliver our products to all CIS countries (except Russia and Belarus) and European countries.