A Certificate of Origin is a key document in international trade used to certify the country in which goods were obtained, produced, manufactured, or sufficiently processed.

Among the great minds of the Renaissance, Leonardo da Vinci stands out not only as an artist and inventor but also as a visionary engineer. Fascinated by the movement and behavior of water, Leonardo devoted countless hours to studying rivers, canals, locks, pumps, and hydraulic systems.

The story of foot-powered pumps reminds us that some engineering principles never become obsolete. Technologies may evolve, materials may improve, but solutions that combine simplicity, efficiency, and functionality continue to stand the test of time.

At DAVINCI VALVES, we continue this engineering tradition by designing and supplying high-quality pressure valves, control valves, and flow-control solutions for water, wastewater, industrial, and infrastructure applications worldwide.

In May 2018, we attended FLOWEXPO 2018, one of Asia's premier exhibitions dedicated to valves, pipe fittings, pumps, and water treatment technologies. The event took place from May 9–11 at the China Import and Export Fair Pazhou Complex in Guangzhou, bringing together thousands of industry experts and innovative companies from around the world.

A packing list is a fundamental document in international logistics used to describe in detail the physical contents of a shipment. Unlike the commercial invoice, it does not typically include pricing, but it is essential for customs clearance, cargo handling, and verification of goods A packing list is a fundamental document in international logistics used to describe in detail the physical contents of a shipment. Unlike the commercial invoice, it does not typically include

The main parts of the most usual type of valve are the body and the bonnet. These two parts form the casing that holds the fluid going through the valve. 1A. DAVINCI VALVES _ BODY is the primary pressure-retaining component of a valve. It forms the external casing that contains all internal parts (known as the trim) and defines the flow path geometry. Mechanically, it must withstand internal pressure, temperature, and external stresses while maintaining structural integri

A valve is a mechanical device whose primary function is to regulate, direct, or control the flow of a fluid whether gases, liquids, or multiphase mixtures—by means of opening, closing, or partially restricting one or more flow passages. Although valves are technically classified as fittings within piping systems, their importance warrants treating them as a distinct engineering category. Under normal operating conditions, when a valve is open, fluid flows naturally from a re