Cast steel worm gear eccentric half ball valve the structure adopts eccentric & ndash; Principle through the drive mechanism to lock tight tight, adjusting, closing, the purpose of sealing pair is surface contact seal ring hardfacing metal, double eccentric structure in the open when the valve core is located in the ball room, large flow area, and the valve is not washed, close the Industrial Valves core is not washed, open along the seat into the spherical Industrial Valves core steps and effectively remove fouling obstacles, to achieve reliable seal, it to the two-phase mixed flow easily scale solid precipitation mixed flow conveying particularly effective; Side of the valve with double metal, of different surfacing on the parent metal alloy, the seat also correspondingly surfacing through special processing, sealing surface combination into various types such as corrosion, wear resistance, high strength, meet the demand of different occasions. This product seal is strictly prohibited, harmful gases can reach zero leakage. Cast steel worm gear eccentric half ball valve samples figure

cast steel worm gear eccentric half ball valve parts body/bonnet materials: WCB, ZG1Cr18Ni9Ti, ZG0Cr18Ni12Mo2Ti, ZG15Cr1Mo1V sphere: WCB + hard chromium, 1 cr18ni9ti special surface treatment, 0 25 cr2mo1v cr18ni12mo2ti surface special processing, special surface treatment: stem 20 cr18ni12mo2ti cr13, 1 cr18ni9ti, 0, 25 cr2mo1v packing: flexible graphite bolt: 35 crmoa, 0 cr18ni9, 15 cr1mo1v nut: 45, 0 cr18ni9, 20 crmo cast steel worm gear eccentric half ball valve manufacturer recommendations
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