Product overview: flange connected steel gate valve is applicable to all kinds of pipelines with nominal pressure of PN1.0 ~ 16.0mpa, working temperature of - 29 ~ 425 ℃ (carbon steel) and - 40 ~ 200 ℃ (stainless steel), used to cut off or connect the medium in the pipeline. By selecting different materials, it can be applied to water, steam, oil, nitric acid, acetic acid, strong oxidizing medium, urea and other media. The driving modes include manual, bevel gear drive and electric drive.