| • Switch driving use the structure of sector gear or worm gear, effectively lowering operating moment.
• Gate valve structure.
• Stem structure has the function of pressure balance and switch indication.
• Apply to the structure of big bore high pressure valve.
• Working Pressure: 2000PSI～20000PSI
• Nominal Bore: 1.13/16"～9" (46mm～230mm)
• Working Medium: oil、natural gas、mud and gas containing H2S、CO2
• Working Temperature: -46°C～121°C（Class LU）
• Material Class: AA、BB、CC、DD、EE、FF、HH
• Specification level: PSL1-4
• Performance Requirement: PR1-2
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