Product Definition
Second-hand pipeline pumps refer to industrial fluid conveying equipment that has been put into use but still maintains stable working performance, mainly used for long-distance pipeline transportation of liquid media. This type of equipment usually undergoes major depreciation when circulating in the second-hand market, and its price is only 30% to 50% of that of a new machine. It is an economical choice for fields such as petroleum, chemical engineering, and water conservancy. Its core function is to pressurize the liquid through mechanical energy and achieve directional transportation, retaining over 70% of the original equipment's working efficiency and service life.
Basic Parameters
The flow rate range of mainstream second-hand pipeline pumps is usually between 50 and 500 cubic meters per hour, with a head of 60 to 200 meters, and they are suitable for pipe diameters ranging from 150 to 500 millimeters. The power configuration is mostly 380V electric motors or diesel generator sets, with power ranging from 15 to 200 kilowatts. The working pressure is maintained within the range of 1.0 to 2.5 megapascals, and the efficiency decline does not exceed 15% of the original design. The main body of the equipment is mostly made of cast iron or stainless steel, and the remaining service life of the key sealing components is about 60% to 80%.
Main Features
Sturdy structure
The pump body is designed with reinforcing ribs, maintaining a pressure-bearing capacity of over 85% of the original factory standard.
01
Easy maintenance
The mechanical seals and bearings and other vulnerable parts are designed in a standardized way, making replacement simple and convenient.
02
Intelligent control
Most devices retain the functions of automatic pressure regulation and overload protection.
03
Medium adaptability
It can handle various fluids such as clear water, oil products, and chemical liquids. Special models have good corrosion resistance.
04
Core Advantages
Prominent cost advantage
Procurement costs are saved by 50% to 70%, and the investment payback period is shortened by more than 60%.
Stable performance
The service life of main components such as the impeller and pump casing, which are metal parts, can reach up to 100,000 working hours.
Flexible installation
The inlet and outlet flanges comply with national standards and have good compatibility with the existing pipeline system.
Obvious energy saving
The second-hand high-efficiency pump type saves 15%-20% energy compared with the ordinary new pump, and the operating cost is lower.
Functional Characteristics
Continuous conveying
Maintains stable flow and pressure output, suitable for 24-hour non-stop operation.
Pressure adjustable
The output pressure can be precisely controlled within the range of 0.5 to 2.0 megapascals through valves or frequency converters.
Self-priming capacity
Some models retain a self-priming height of 6-8 meters and can be started without priming the pump.
Safety protection
Equipped with basic safety devices such as leakage alarm and temperature monitoring.
Typical Application Scenarios
Petroleum Transportation
Oilfield gathering and transportation pipelines, oil product turnover in refineries, and other working conditions.
01
Water Conservancy Projects
Large-flow water conveyance scenarios such as reservoir water diversion and irrigation systems.
02
Chemical Production
The process cycle of chemical media such as acid and alkali solutions and solvents.
03
Municipal Water Supply
Secondary pressurization of waterworks, water supply systems for high-rise buildings.
04
Industrial Cooling
Cooling water circulation for large equipment such as power plants and steel mills.
05
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