What Is A High Temperature Valve?

High temperature valve refers to the valve used in high temperature environment. Due to the high temperature environment, ordinary valve materials will occur thermal expansion, thermal oxidation and other reactions, resulting in valve sealing performance decline, performance instability and other problems, so special materials and processes need to be used to ensure that the valve can work normally in a high temperature environment.

Generally, valves with operating temperatures greater than 450 degrees Celsius are called high temperature valves. Generally, the valve material with an operating temperature greater than 450 degrees Celsius is called high temperature valve material. Common high temperature valve materials are :ZG1Cr18Ni9Ti, Cr-Ni heat resistant alloy, CF8Ti(321), CF10Ti(321H), Cr-Mo cast steel, CF8M, CK-20, ZG0Cr19Ni11Ti, CF3, CF3M, CF8, HK-30, HK-40, 304 304H, WC6(the medium is water or steam), WC9(the medium is water or steam), C5(ZG1Cr5Mo), 310 high chromium nickel stainless heat resistant steel, 310H high chromium nickel stainless heat resistant steel, as well as special surface treatment processes, such as spraying ceramics, carburizing hardening, etc., to improve its high temperature resistance and wear resistance. At the same time, the structure and design of high temperature valves also need to fully consider the impact of high temperature environment, such as the use of double stem structure, increasing the cooling system.

The high temperature valve automatically opens the valve by relying on the pressure of the medium itself, and the high temperature valve quickly drains a certain amount of media. When the pressure in the container is reduced to the allowable value, the high temperature safety valve automatically closes, the high temperature safety valve makes the pressure in the container always lower than the upper limit of the allowable pressure, the high temperature valve automatically prevents possible accidents due to overpressure, the high temperature valve is also known as the final protection device of the pressure vessel.

High temperature valves are widely used in various high temperature industrial fields, such as thermal power, nuclear power, metallurgy, chemical industry, etc. In these fields, high temperature valves are used to control and regulate the flow and pressure of high temperature gases or liquids to ensure the safety, stability and efficiency of industrial production.

During the operation of the ship, some systems such as engines, boilers, etc., produce high temperature, and need to use high temperature valves to control and regulate the flow and pressure of high temperature gases or liquids. High temperature valves usually use high temperature resistant materials and special surface treatment processes to ensure that they can work normally in high temperature environments. According to different working principles and structural forms, it can be divided into ball valves, butterfly valves, globe valves and so on.

Besqo Marine offers a wide range of Marine Valves. For more information, leave message or send an email to sales@besqo.com.