How to choose high temperature ball valve introduction

In special cases, the material of the high temperature ball valve can be selected according to the needs of the user. In general, the materials can be selected according to the following criteria:
  1. If the working temperature of the ball valve is between 100 degrees and 200 degrees Celsius, the sealing material can be PPL, the valve body material can be WCB, the valve stem material is stainless steel, and the spherical material can be stainless steel 201.
  2. When the stainless steel ball valve working temperature is between 250 ° C and 400 ° C, the sealing material should be hard sealed <H or Y>. The valve body material should be WCB, the valve stem material should be stainless steel, and the spherical material should be stainless steel <carbonization>.
  3. When the sanitary ball valve operating temperature is between 400 ° C and 550 ° C, the sealing material should be hard sealed <H or Y>. The valve body material should be chrome-molybdenum steel, the spherical material should be chrome-molybdenum steel, and the sanitary valve stem material should be chrome-molybdenum steel.
  4. Ball valve materials with working temperature above 600 degrees Celsius, such as: seals, valve body, sphere, valve stem, etc., generally select <2520>,
  5. In some specific cases, it is also necessary to select materials according to the medium. If there is no corrosive medium, WCB carbon steel can be selected, corrosive medium can be selected as stainless steel, and when stainless steel is selected, it should be corroded according to the medium through stainless steel ball valve. The strength of the to choose.