What are the commonly used materials of Chinese valves?


I. Gray cast iron: Gray cast iron is suitable for water, steam, air, gas, oil and other media with nominal pressure PN≤ 1.0mpa and temperature ranging from -10℃ to 200℃.Common grades of gray cast iron are: HT200, HT250, HT300 and HT350.

2. Malleable cast iron: suitable for water, steam, air and oil media with nominal pressure PN≤ 2.5mpa and temperature -30 ~ 300℃, commonly used brands: KTH300-06, KTH330-08, KTH350-10.

Ductile iron: applicable to water, steam, air and oil with PN≤ 4.0mpa and temperature between -30 ~ 350℃.Common grades are: QT400-15, QT450-10, QT500-7.

In view of the current level of domestic technology, different plants, users are often not easy to inspect.According to experience, it is recommended that PN≤ 2.5mpa, the valve should be made of steel.

4. Acid-resistant high silicon ductile iron: suitable for corrosive medium with nominal pressure PN≤0.25MPa and temperature below 120℃.

5. Carbon steel: suitable for medium such as water, steam, air, hydrogen, ammonia, nitrogen and petroleum products with nominal pressure PN≤32.0MPa and temperature -30 ~ 

Basic Information
  • Year Established
  • Business Type
  • Country / Region
  • Main Industry
  • Main Products
  • Enterprise Legal Person
  • Total Employees
  • Annual Output Value
  • Export Market
  • Cooperated Customers

Send your inquiry

Choose a different language
English English Tiếng Việt Tiếng Việt Pilipino Pilipino Bahasa Melayu Bahasa Melayu हिन्दी हिन्दी Esperanto Esperanto русский русский 日本語 日本語 français français Español Español Deutsch Deutsch العربية العربية
Current language:English
Send Your Inquiry