The valve body is available in a wide variety of materials and is suitable for a variety of different working conditions.
The commonly used materials for valve bodies are as follows:
1. Gray cast iron, suitable for low pressure valves with working temperature between -15~+200℃ and nominal pressure PN≤1.6MPa.
2. Black-heart malleable cast iron, suitable for medium and low pressure valves with working temperature between -15~+250℃ and nominal pressure PN≤2.5MPa.
3. Ductile iron, suitable for medium and low pressure valves with working temperature between -30~+350℃ and nominal pressure PN≤4.0MPa.
4. Carbon steel (WCA, WCB, WCC) is suitable for medium and high pressure valves with working temperature between -29~+425℃, among which 16Mn and 30Mn working temperature is between -40~+450℃, which are often used to replace ASTMA105.
5. Low temperature carbon steel (LCB), suitable for low temperature valves and valves with working temperature between -46~+345℃.
6. Alloy steel (WC6, WC9), suitable for high temperature and high pressure valves of non-corrosive medium with working temperature between -29~+595℃; WC5, WC12 suitable for corrosive medium with working temperature between -29~+650℃ High temperature and high pressure valve.
7. Austenitic stainless steel, suitable for valves with corrosive medium operating temperature between -196~+600℃.
8. Monel alloy, mainly suitable for valves containing hydrogen fluoride medium.
9. Cast copper alloy, mainly suitable for valves for oxygen pipelines with working temperature between -273~+200℃.
The above lists are the main categories of commonly used materials for valve bodies. There are many different grades in each type of material, and various grades are suitable for various pressure levels. Therefore, when selecting the valve body material of the valve, the valve body material suitable for the working conditions should be determined according to different uses and different pressure levels.
In addition, valve body materials include titanium alloy (titanium valve), aluminum alloy (aluminum valve); plastic (plastic valve); ceramic (ceramic valve), etc.
Huatai Valve Group Co., Ltd. is a high-tech enterprise integrating R&D, design, manufacture, nickel, zirconium, titanium and other valves and pipe fittings. With perfect casting equipment and computer-aided design and sophisticated computer numerical control machine tool production, processing and testing equipment, the company took the lead in passing the ISO9001 quality management system certification in the same industry, obtained the national high-tech enterprise, the national self-support import and export rights, passed the EU CE certification, the United States API certification, national special equipment manufacturing (TS) license. The company is a member of China Valve Association and a member of China Quality Inspection Association.