Metal seated butterfly valve the sealing surface has features as wear resistance, corrosion resistance and long service life etc. End connection have wafer type and flange type, can fit to high temperature and transport corrosive or non-corrosive fluid and gas media such as oils, slurry, cinder, waste water, coal gas, natural gas and so on, mainly used in chemical smelting, power plant and water treatment field etc.
Design standard
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GB/T 12238, API 609, JIS B2071
Face to face
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GB/T 12221, ASME B16.10, JIS B2002
End Connection
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GB/T 9113, ASME B16.5, JIS B2211
Inspection and test
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GB/T 26480, API 598, JIS B2003
Operation device
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worm gear, pneumatic,electric actuator