Pumps for Petrochemical Industry

Petrochemical industry is one of the important application fields of pump equipment, because the petrochemical production process involves high temperature, high pressure, corrosive media and complex processes, so the performance, material and reliability of the pumps are extremely high requirements. Petrochemical pumps are mainly used to transport crude oil, refined oil, chemical raw materials, corrosive liquids, high temperature media.

Solutions for various application requirements

• High-viscosity media: use pumps with large-size rotors and optimized clearance, with low-speed motors, like refineries conveying residual oil, to control the appropriate speed.
• Medium containing particles and impurities: use pumps with large channels and wear-resistant materials, use pumps with sprayed tungsten carbide coating to improve the service life of rotor pumps;
• Corrosive media: use pumps made of corrosion-resistant materials such as 316L, 2205, 2507 and special materials, and choose PTFE for seals to be suitable for conveying different corrosive media.
• High-temperature media: Selection of high-temperature-resistant material pumps, pumps can be designed jacket cooling structure of the pump, can be passed through different insulation media, such as different temperatures of water, steam, thermal oil, can be transported less than 240 ℃ below the media;

Zhongli rotor pumps can offer you

• Safety relief valve, guaranteeing safety
• Online maintenance, continuous production
• Can be forward and reverse, to meet the different installation needs on site
• Components are common, reducing inventory
• A variety of sealing types, applicable to all kinds of media

Features of Zhongli high-pressure plunger diaphragm pumps

• No shaft seal design, no leakage
• Avoid oil leakage from disassembly, prevent air intake at the rear end of the diaphragm
• Fewer wearing parts, quicker replacement, lower cost

ZL Twin-screw pumps features Advantages

• No contact between screw and pump chamber can run in reverse
• Axial conveying, lower shear rate
• Stable conveying, no pulsation and vibration