Doweston has been working for many years to outline the design and manufacturing processes for fluid sensors in the construction machinery (OHV-RRB- industry. With industry experience, Doweston has a unique vision for complex OHV applications, taking into account today's and future critical requirements in fluid sensors. Doweston provides you with superior workmanship and strength: global support from fluid level, flow and pressure control experts, multi-sensor technology to meet all your sensor requirements, local support and expertise to provide intimate services, precision production and advanced design methods to ensure the design standards, professional engineering team at your disposal

Oil refining generally refers to the oil refining, originally by distillation of oil to separate the use of internal combustion engines in kerosene, gasoline, diesel and other fuel oil, by-product LPG and residual oil; heavier components than fuel oil, and through heating, catalytic cracking and other processes chemical conversion into fuel oil, some of these fuel oil to use hydrogenation and other processes for refining. The heavy vacuum residua are deasphalted to produce deasphalted oil and petroleum asphalt by solvent deasphalting process, or the heavy oil is cracked to fuel oil by delayed coking process, and petroleum coke is by-product. Through solvent refining, Solvent Dewaxing and supplementary hydrogenation, the Lube Oil Refinery produces all kinds of special industrial oils, such as engine oil, mechanical oil, transformer oil, hydraulic oil and so on. In recent years, the hydrogenation process has been used more and more in the production of fuel oil and lubricating oil. In addition, hydrocracking process is also used in refineries that produce feedstock for petrochemical industry.

Gases and gas mixtures are used in a variety of industrial applications, particularly in research and medical devices. Mainly used in welding, cleaning and cooling process. Depending on the application, the gas can be liquefied or concentrated and then stored in tanks of different sizes of liquid or gas.

Our gauges are developed based on the concept of“Innovative value” to meet the needs of the market and customer applications, ventilation and air conditioning equipment to meet high application requirements. At present, the products that are widely used by users are designed to meet the requirements of manufacturers of ventilation systems, ventilation and air conditioning equipment for industrial and administrative buildings. In order to meet the requirements, the instrument must be installed in accordance with the ventilation and air conditioning filter monitoring instructions, and meet all the required specifications and measurement range requirements.