Material: WCB, ZG1Cr18Ni9Ti, Cr Mo steel Size: DN40, DN50, DN65, DN80, DN100 ~ DN600 PN: PN16~PN160 Working pressure: 1.6 ~16mpa Medium: steam,oils Standard: Design GB/T 12234 Structure length GB/T 12221 Flange JB/T 79 Testing JB/T 9092 Pressure-Temp. GB/T 9131 Product marking GB/T 12220 Application: Wedge gate valve is widely used in petrochemical industry, thermal power plant and other oil products steam pipeline to connect or cut off the medium of the pipeline device. Characteristics 1. Compact structure, reasonable design, good rigidity of valve, smooth passage and small flow coefficient 2, sealing surface of stainless steel and hard alloy, long service life 3. Flexible graphite packing, reliable sealing and flexible operation 4. The driving mode is manual, pneumatic, electric and gear 5. The structure is of elastic wedge type single ram and rigid wedge type single ram and double ram