Durrex has continued to provide reliable products and leading technical solutions for the petroleum and petrochemical industry for more than 20 years, which are widely used in the fields of crude oil transportation, refined oil transportation, petrochemical chemical transportation, dirty oil and sewage transportation, tank truck unloading, oil depot sweeping and other fields. The products operate stably, safely and reliably, can save energy and reduce consumption, have low noise, long service life, less easily-damaged spare parts, and can be maintained online.
Positive displacement pumps with cooling system
Based on the complex working conditions and process requirements of the coal chemical industry, the chemical grade rotor pumps are developed and produced to be of high precision, wear resistance, dry operation, reversible input and output, easy maintenance and long service life. The corresponding sealing and flushing system is configured, such as 52, 53A, 53B, 54, 74, etc. The mechanical sealing and flushing system strictly implements the API682 standard to ensure the reliability of the seal. Different configurations can meet different needs of users, suitable for transporting gas, liquid, solid mixed materials, coal tar, coal water slurry and other materials efficiently and stably, and it is energy-saving, consumption reducing, safe and reliable.
Rotary pumps for transporting oilfield oil extraction additives
Our rotary lobe pumps specially designed the pump body based on the characteristics of this material: the flow components and mechanical seals are made of special materials to ensure the product is corrosion-resistant and wear-resistant; And equipped with built-in safety valves, it can avoid potential safety accidents caused by high pressure during the production process. The product operates with low noise and low speed, making it smoother and safer, greatly reducing customer usage and maintenance costs.
Heavy oil transportation rotor pumps
Heavy oil, residual oil, fuel oil, crude oil and other heavy oils have low pour point, high viscosity, and poor liquidity, making transportation difficult. In the past, screw pump was used, but in practical applications, it is not wear-resistant and with a large amount of maintenance workload. Our rotor pumps have the characteristics of low speed, small size, strong self-suction, bi-directional operation, wear resistance, convenient operation and maintenance, energy conservation and consumption reduction, and long service life. It is very suitable for transferring mediums in crude oil extraction and petroleum refining fields.
Polymer delivery lobe pumps for oilfield oil extraction additives
Hydrolyzed polyacrylamide polymer solution is an essential auxiliary agent for oilfield ternary composite flooding oil recovery technology. Traditional processes use screw pump for transportation, resulting in a large number of vulnerable parts and high cost of later maintenance accessories. Our low shear rotor pumps are used to transport and feed polymer mother liquor, with fewer vulnerable parts and online maintenance. It has long service life, is efficient and energy-saving, and can be equipped with a built-in safety valve for safer operation. The product has been well applied in oilfield oil production injection stations and CNOOC oil production platforms.
Homogeneous emulsion pumps
In the sulfonation production unit, esters and various alkaline liquids are uniformly mixed in the neutralization system to produce products with different concentration and viscosity. The majority of the neutralization systems in sulfonation units adopt measures such as main bath circulation and cooling heat exchange. Our emulsion pumps can simultaneously mix, homogenize, emulsify, and neutralize materials such as esters, alkalis, and water in different ratios into the chamber, which is simpler and more efficient than traditional kettle mixing processes, which significantly improved the quality of the neutralized products.
Adhering to the mission of "creating maximum value for users", our rotary lobe pumps and emulsion pumps can improve production efficiency, reduce production costs, and promote low-carbon and green development in the petrochemical industry.