The main purpose of deck surface valves is to control the flow of fluids on ships such as cargo ships and oil tankers, especially in application scenarios on deck surfaces. Deck surface valve, also known as marine deck surface valve, is a type of valve specifically designed for ship decks, taking into account the special environment and working conditions of the vessel in its design and application. These valves are usually installed on the deck surface of ships to control the flow of fluids such as fresh water, seawater, sewage, etc. They play an important role in the normal operation and maintenance of ships. ?