Z961H/Y Details of high pressure welding electric gate valve   Engineering path: NPs 2 "~ 24" Nominal pressure: cl900 ~ cl2500 Working temperature: - 196 ℃ ~ 560 ℃ Applicable media: water, steam and oil   Design criteria   GB/T12234、GB/T19672、JB/T7749、JB/T5298、JB/T8691 API 600、API 6D、ASME B16.34、BS 1414、DIN 3352