■ Summarize
Using three-eccentric structure and adopting different rigidity stainless steel as seal surface of seat and disc. So it has super corrosion stability, bidirectional seal function and long service life time. It is applied to metallurgy, electric power, petrochemical, water supply and drainage and city planning pipeline which medium temperature does not exceed 425℃.
■ Main technical parameter
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Nominal diameter DN(mm)
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DN(100～1200)mm, in4～48
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Nominal pressure PN(MPa)
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Strength testing (1.5×PN) seal testing (1.1×PN)
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Applicable temperature
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Carbon steel: -29℃～425℃ stainless steel: -40℃～650℃
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Applicable medium
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Water, steam, hot water, oil
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Drive manner
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Worm gear transmission, electric operated, pneumatic, hydraulic
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Pressure grade
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ANSI 150Lb pound class /PN25
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Welding standard
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GB12224, ANSI B16, 25, DIN2559
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