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Property Specification:
Purpose and Characteristic
Main configuration characteristic of 815, 830 series of butterfly valve is composed of wafer and flange three eccentricity, then main configuration characteristic of 815, 830L series butterfly valve is edge of body with protruding ears and single flange configuration with screw. 815, 830 series of butterfly valve has been widely utilized in petroleum, chemical industry and industrial environmental protection water treatment, high building, water supplying and draining. The main characteristic is: due to use three eccentric configuration, hermetic capability reliably, which ensure disc never touch sealing seat when it start, solve the problem of hermetical seat burden unequally, prolong service life, and ensure reliable hermetic capability with advantage of high temperature resistant, wearable, antisepsis etc.
Adoption Standard:
Design standard: API 609-83
Flange connection dimension: ANSI B16.5
Structure length: ANSI B16.10-1992
Pressure test: API 598-82
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