CB-1258 Worm gear ventilation butterfly valve

Purpose and characteristics

The main structural features of CB-1258 worm gear ventilation butterfly valve are wafer type and flange type three eccentric seals. The valve seat sealing ring adopts elastic seal and soft and hard compatible multi-level seal. Its sealing performance is reliable, which ensures the The butterfly plate does not contact the sealing seat, eliminating the uneven load of the sealing seat, extending the service life, and ensuring reliable sealing performance. It has the advantages of high temperature resistance, wear resistance and corrosion resistance. Widely used in petroleum, chemical and marine pipelines.

Use standard

Design standard: CB-1258 Flange connection size: JIS B2212 JIS B2213 JIS B2214 Structure length: JIS B2002-1987
Pressure test: JIS B2003-1987
Drive form: handle, worm gear, pneumatic, electric, etc.

The main technical parameters

Material of main parts

Standard related downloads:

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