Doweston has been continuously working on outlining the design and manufacturing process of fluid sensors for the construction machinery (OHV) industry for many years. With industry application experience, Doweston has a unique vision for complex OHV applications, fully considering the key points of today and the future in fluid sensors Require. Doweston provides you with superior craftsmanship and strength: Global support from experts in fluid level, flow and pressure control Multi-sensor technology for all your sensor requirements Local support and expertise for caring service Design standards ensured by sophisticated production and advanced design methods Professional engineering team ready to dispatch

Refining generally refers to petroleum refining. Originally, petroleum is separated by distillation to produce fuel oil such as kerosene, gasoline, diesel oil, etc., which are suitable for internal combustion engines, and the by-products are petroleum gas and residual oil; , catalytic cracking and other processes are chemically converted into fuel oil, and some of these fuel oils need to be refined by hydrogenation and other processes. The heavy vacuum residue is processed by solvent deasphalting to produce deasphalted oil and petroleum bitumen, or by delayed coking process, the heavy oil is cracked into fuel oil components, and petroleum coke is produced as a by-product. The lubricating oil refinery produces various special industrial oils such as engine lubricating oil, mechanical oil, transformer oil, hydraulic oil, etc. through solvent refining, solvent dewaxing and supplementary hydrogenation. In recent years, the hydrogenation process has been more used in the production of fuel oil and lubricating oil. In addition, refineries that produce feedstocks for petrochemicals use hydrocracking processes.

GASES AND GAS MIXTURES ARE USED IN DIFFERENT INDUSTRIAL FIELDS, ESPECIALLY IN RESEARCH AND MEDICAL DEVICES. MAINLY USED IN WELDING, CLEANING AND COOLING PROCESSES. DEPENDING ON THE APPLICATION, THE GAS CAN BE LIQUEFIED OR CONCENTRATED AND THEN STORED IN LIQUID OR GAS TANKS OF DIFFERENT SIZES.

OUR MEASURING INSTRUMENTS ARE DEVELOPED BASED ON THE CONCEPT OF "INNOVATIVE VALUE", WHICH FULLY CATERS TO THE APPLICATION NEEDS OF THE MARKET AND CUSTOMERS, AND CAN MEET THE HIGH APPLICATION REQUIREMENTS OF VENTILATION AND AIR CONDITIONING EQUIPMENT. AT PRESENT, THE PRODUCTS THAT ARE WIDELY USED BY USERS ARE MAINLY DESIGNED ACCORDING TO THE REQUIREMENTS OF MANUFACTURERS OF VENTILATION SYSTEMS, VENTILATION AND AIR CONDITIONING EQUIPMENT FOR INDUSTRIAL AND ADMINISTRATIVE BUILDINGS. TO MEET THE CORRESPONDING REQUIREMENTS, THE METER MUST BE INSTALLED IN ACCORDANCE WITH THE FILTRATION MONITORING DIRECTIVE FOR VENTILATION AND AIR CONDITIONING AND COMPLY WITH ALL REQUIRED SPECIFICATIONS AND MEASURING RANGES.