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Pump type PE 150-53

Model: PE 150-53
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Pump type PE 150-53

Centrifugal feed pumps PE 150-53 are designed to supply water to stationary steam boilers, with absolute vapor pressure up to 6.2 MPa (63 kgf / cm²). Feed water should have pH 7-9,2, the temperature not more than 438K (165 °C) and should not contain solid particles.

Pumps are manufactured in a climatic category of a moderately cold climate – they are designed for macroclimatic regions with temperate and cold climates, placement category 4 – operation in rooms (volumes) with artificially controlled climate conditions.

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
PE 150-53 150 580 2980 6 71 500 1785 6075

Purpose and Application

The PE 150-53 centrifugal feedwater pump is designed for supplying water to stationary steam boilers with absolute steam pressure up to 6.2 MPa (63 kgf/cm²). It is widely used in industrial and energy facilities to ensure reliable boiler operation.

  • Maximum Flow: 150 m³/h
  • Maximum Head: 580 m
  • Allowable NPSH: 6 m

Design Requirements

  • High reliability and long-term service
  • Free thermal expansion of rotor and stator without misalignment
  • External tightness and absence of internal leaks
  • Long service life: 15,000–30,000 hours with proper maintenance
  • Protection against backflow
  • Dynamic stability across the entire operating range
  • Smooth, continuously falling head curve
  • Ease of assembly, disassembly, and maintenance

Drive and Efficiency

  • Typically driven by an asynchronous electric motor with frequency converter
  • Nominal rotation speed: 2980 rpm
  • Overall system efficiency (pump + drive): 71%
  • Motor power: 500 kW

Design Features

  • Single-Case Sectional Multistage Design: Ensures high efficiency and reliability
  • Rotor Bearing Supports: Provides stability and reduces wear
  • Thermal Expansion Compensation: Handles thermal changes in feedwater efficiently
  • Flexible Rotor Shaft: Diameter-to-length ratio up to 1:20 for strength and durability
  • Hydraulic Foot for Axial Load Compensation: Balances axial forces across all operating conditions

Dimensions and Weight

Parameter Value
Pump Mass 1785 kg
Complete Unit Mass 6075 kg
Overall Dimensions (L×W×H) 3590 × 1285 × 1070 mm

Materials of Construction

  • Pump Body, Sections, and Bearings: Cast iron СЧ20 – strong and corrosion-resistant
  • Rotor Shaft: Heat-treated steel 40Х – high strength and wear resistance
  • Impellers: 25Л cast iron or stainless steel 20Х13 – durable and corrosion-resistant

Optional Upgrades

  • Mechanical Seals: Replace traditional gland packing for reduced leaks and improved reliability
  • Bearings in Pumped Medium: Simplifies maintenance and extends service intervals
  • VDS Monitoring System: Vibration, axial displacement, speed, and temperature sensors for predictive maintenance
  • Flow Path with Corrosion-Resistant Overlay: Stator in carbon steel with anti-corrosion surfacing; rotor in stainless steel

Operating Conditions

  • Feedwater temperature: ≤165 °C (438 K)
  • pH level: 7–9.2
  • Water must be free of solid particles
  • Suitable for moderate and cold climate regions (UHL climatic execution, GOST 15150-69)

Industrial Applications

  • Energy: Thermal power plants, industrial boiler houses – supplying feedwater to high-pressure steam boilers
  • Metallurgy & Heavy Industry: Steam generation for industrial processes
  • Chemical & Petrochemical Industry: Delivery of high-temperature, clean water
  • District Heating: Centralized heating systems in cities

Frequently Asked Questions about PE 150-53

  • PE: Feedwater centrifugal pump for energy systems
  • 150: Flow rate in m³/h
  • 53: Pressure in kgf/cm² (≈5.3 MPa)
  • Stationary steam boilers in energy (TPP), industrial, and heat supply systems
  • Transfers feedwater in high-pressure applications
  • High flow and head for servicing large boilers
  • Energy-efficient (71% efficiency)
  • Durable horizontal, multistage sectional design
  • Designed for moderate and cold climates (УХЛ)
  • Increased cavitation margin (~6 m) ensures safe operation
  • Temperature: ≤165 °C
  • pH level: 7–9.2
  • Free of solids or abrasive/chemical impurities
  1. Operate within specified limits
  2. Maintain clean, temperature-controlled feedwater
  3. Inspect bearings and seals regularly
  4. Schedule preventive maintenance and replace worn parts
  5. Monitor vibration and noise levels