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Yiu Lian Dockyards High-Pressure Cleaning Pump System

Wuxi Petrel provided its 3ZX120 high-pressure plunger pump system for Yiu Lian Dockyards Co., Ltd. to support vessel cleaning and dockyard deck washing operations. The system has been installed and put into operation at shipyards located in Zhoushan, Shenzhen, and Hong Kong, delivering reliable high-pressure water cleaning performance for marine maintenance and shipyard service applications.


The supplied cleaning solution is designed as a complete skid-mounted package, integrating the 3ZX120 high-pressure plunger pump, variable frequency drive (VFD) control cabinet, electric motor, inlet filter, water tank and booster feed pump. The entire system is installed inside a protective weather shelter, providing a compact and integrated solution for outdoor shipyard environments. With optimized water supply and flow distribution, the skid system supports simultaneous operation of four water guns, improving cleaning efficiency for large vessel surfaces, ship decks, and dockyard facilities.


The 3ZX120 is a heavy-duty triplex high-pressure plunger pump developed for continuous industrial cleaning applications, including ship cleaning, marine maintenance, and large-area water jet cleaning. Combined with VFD control technology and a complete auxiliary system, it provides stable pressure output, flexible operation, and long-term reliability for demanding cleaning environments.


Pump Model: 3ZX120
Pump Type: Triplex High-Pressure Plunger Pump
Pressure: 40 MPa (5800 psi)
Flow Rate: 167 L/min (44.1 US gpm)
Motor Power: 132 kW (177 hp) 
Application: High-Pressure Cleaning (Shipyard/Vessel  Cleaning)
Installation: Zhoushan / Shenzhen / Hong Kong Shipyards
Pumped Medium: Water



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Petrel's foreign trade share takes around 50%. To meet standards and requirement of different foreign clients, Petrel continuously improve its production management.
Petrel improves product management system by ensuring the trackability of raw material sourcing, heat treatment process, and machining accuracy. The codes on key parts allow Petrel to track which steel mill supplies the material, which factory conducts the heat treatment, inspection records of fine machining, etc. To sustain products' high quality, Petrel heavily invests its calibration lab by importing various inspection equipment, such as spectrometers, Brinell hardness gauges, coordinate measuring machine, etc.
To promote and sustain a high level of productivity and safety, Petrel also pays attention to employee training, which includes 6s lean methodology, instructions of equipment, standards, requirement of production process, etc.

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