The role of the gate valve in the pipeline system and its material application differences

In piping systems.gate valveIt is a key regulating and intercepting device and plays a vital role. Gate valves made of cast steel and cast iron are widely used in many industries. The following is a list ofCast steel gate valvetogether withCast iron gate valveSpecific analysis of differences in use.

With its high strength and excellent corrosion resistance, cast steel gate valves have become the first choice in piping systems for high pressure and high temperature media such as petrochemical and natural gas. The pressure rating of these gate valves usually exceeds 1.6Mpa, which can withstand large pressure fluctuations and medium erosion. The cast steel gate valve has a sturdy structure and reliable sealing performance, thus ensuring the safe operation of the pipeline system. Therefore, in the need to withstand high pressure, high temperature or corrosive media occasions, cast steel gate valve is particularly widely used.

Relatively speaking, cast iron gate valves are mainly used in low pressure piping systems such as water supply and drainage pipelines and municipal engineering. Its pressure level is usually not more than 1.6Mpa, suitable for use in the environment of low media pressure. Cast iron gate valve has the advantages of simple structure, low cost, easy installation and maintenance, so in the water plant, sewage treatment plant and other occasions that require a large number of gate valves, cast iron gate valve is prioritized due to its high cost-effective.

To summarize, cast steel gate valve and cast iron gate valve in the use of the main difference is their material properties and pressure tolerance. Cast steel gate valve due to high strength and corrosion resistance, suitable for high pressure, high temperature or corrosive media pipeline system; and cast iron gate valve due to simple structure, low cost, more suitable for low-pressure pipeline system and municipal engineering. In the selection of gate valves, according to the actual working conditions and media characteristics to a reasonable choice, in order to ensure the safe and stable operation of the pipeline system.