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Description:Product Name: Double-Eccentricity Hemispheroid ValvePlace of Origin: ChinaSpecifications: 1) Size: DN50 (2") ~ DN600 (24") 2) Pressure: PN16, 150lbs 3) Material: a) Body: carbon steel, stainless steel b) Sphere: ZG2Cr13, ZG1Cr18Ni9Ti, WCB c) Stem: stainless steel d) Seat: stainless steel, PTFE + stainless steel 4) Standards: a) Valve design to: GB/T12237-1989, API608 b) Valve test to: GB/T13927-1992, API598 c) Face to face: GB/T12221-2005, ASME/ANSI B16.10 d) Flange drilled is according to: GB9113, ASME/ANSI B16.5 Features: 1) While eccentric hemispheroid and stem are circumrotating, automatically ensure center makes the process of closing tighten, achieve to the purpose of sealing, obtain a good sealing. While opening and closing, the hemispheroid and the seat are separated completely, eliminates the abrasion between them 2) The hemispheroid has incision effectiveness with the seat, especially adapt to fiber, tiny solid grain, and slurry 3) Capacity is quite large and pressure loss small when fully opened and medium cannot sedimentate in the valve chamber 4) The sealing of the seat can be accommodated a little Inner packing: Plastic package Outer packing: Wooden cases