Import Diesel Fuel Oil Purifying Device — Buy in wholesale FOB from Supplier in China

The THY-400Q diesel fuel oil purifying device is a single-bucket filtration system designed to remove water, particulates, and other contaminants from diesel fuel. It features a multistage filtration process capable of removing over 90% of harmful impurities and includes an integrated oil-water separation function. The unit uses DN50 flange connections for both inlet and outlet, ensuring standard compatibility with industrial fuel lines. The housing is constructed from stainless steel for durability and resistance to corrosion in high-moisture environments.

The purification cavity is positioned at the top of the unit to prevent recontamination during filter element replacement, a design feature that reduces operational downtime and maintains filtration integrity. This is a typical configuration for medium-capacity diesel purification systems used in marine, agricultural, and heavy equipment fuel systems. The absence of complex electrical components makes it suitable for use in environments without stable power supply. Standard filter media are rated for fine particulate capture down to 5 microns, consistent with industry norms for diesel fuel polishing applications.

This device is commonly purchased by fleet operators, marine maintenance contractors, and agricultural equipment service centers that require on-site fuel conditioning. It is typically shipped as a complete assembly with mounting brackets and requires no special installation beyond connection to a fuel line and grounding. Trade terms are generally FOB Xi'an Port, with packaging in a steel frame crate. Lead time is not specified in the listing and should be confirmed directly with the supplier.

Xi'an Tianhou Electronic-Technology Co., Ltd. is based in Xi'an, Shaanxi Province, China, with its registered address at 4th Floor, Tongxin Building, No.2 High-Tech Road. The listing identifies the company as an imported supplier with harbor trust tier status, indicating verified export documentation and shipping history. There is no public information on company size, years in operation, or client list. The supplier is not listed as a manufacturer but is associated with Xi'an Tianhou Filter Technology Co., Ltd., which developed the THY-400Q technology.

The supplier has no recorded response rate or average response time in the listing, suggesting limited or no active communication channels for buyer inquiries. No certifications, quality audits, or production capacity details are provided. The company's role appears to be distribution or technical support for the THY-400Q device, rather than full-scale manufacturing. Buyers should verify direct ties to the technology developer before placing orders.