H72 type clamp type check valve is suitable for nominal pressure PN1.0MPa~42.0MPa, Class150-2500; Nominal diameter DN15~1200mm, NPS1/2~48; The working temperature is -196~540 °C on various pipelines, which are used to prevent the medium from flowing back. By selecting different materials, the H72 clamp-on check valve can be used for water, steam, oil, nitric acid, acetic acid, strong oxidizing media and urea and other media.