Application: Suitable for industrial and water pipe of butterfly valve accessories.
1.Hard Seal Butterfly Shaft improves the valve sealing performance and prolong the service life of the advantages, suitable for high temperature, high pressure and corrosion resistance to wear, etc.
2.For butterfly valves, hard seal means that both sides of the seal are made of metal material or other hard materials. The sealing performance of this seal is poor, but it is resistant to high temperature, abrasion and has good mechanical properties. Such as: steel + steel; steel + copper; steel + graphite; steel + alloy steel. The steel here may also be cast iron, cast steel, alloy steel or alloys for surfacing and spraying.
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