D341H 1 represents the center of the butterfly valve inside, is refers to the axis of the stem and disc center and ontology in the same position. Advantage is simple in structure, convenient in manufacture, the disadvantage is that because of the valve plate and valve seat remain the state of extrusion, scratches, is apart from the big, fast wear. Seat basically use the elastic material such as rubber and ptfe, so is limited by the temperature, can only be used in low temperature.

D343H - Inside of 3 represents the triple eccentric butterfly valve, and refers to the axis of the stem is deviating from the disc center also deviates from the center of ontology, the shape of the seal is not positive cone, but oblique cone. The advantage is high temperature resistant, sealed performance is good.

D341H PN0, type. 5 ~ PN1。 0 ventilation butterfly Industrial Valves in metallurgy, chemical industry, building materials, ventilation, environmental protection engineering in power plant, glass and other industries of dust in the cold or hot gas pipeline, a gas medium flow adjusting or cutting device.

type D343H PN10 ~ PN40 metal hard seal butterfly valve adopts precision J elastic sealing ring and triple eccentric metal hard seal structure, multi-level is widely used in medium temperature & le; 425 ℃ of metallurgy, electric power, petrochemical industry, water supply and drainage, and municipal construction and other industrial pipelines, used to adjust flow cutoff and body.

Shenzhen Mech Valve Trading Co., Ltd.'s products comply fully with all compatible producing regulations.
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