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W8-Series Triple Eccentric High Performance Butterfly Control Valve

The valve is designed uniquely as Triple Eccentric structure with excellent cut-off performance and durability and cut off and regulating dual functions. It can be used for high temperature medium, corrosion medium and tight regulating applications or regulating and cut-off dual control applications.
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Nominal Diameter:   1/2°Ś ~ 2°Ś (S Series); 1°Ś ~ 12°Ś (K Series)
Nominal Pressure:   ANSI Class150£¨Class300£¨Class600£¨ANSI Class 900
                            1.6, 4.0, 6.3, 10.0, 16.0, 25.0, 32.0, 42.0MPa
Flow Characteristics:   approximate equal percentage, quick open
Temperature of Media:   -20 ~ +200°ś( ambient temperature),

                                  -40 ~ +450°ś(medium temperature),

                                  -40 ~ +600°ś(high temperature)
Body Material:   410 SS, 304 SS, 316/316L SS, WCB, CF8, CF8M, Monel, Hastelloy, Titanium Alloy etc.
Board Material:   410 SS, 304 SS, 316/316L SS, Monel, Hastelloy, Titanium Alloy etc.
Valve Seat Material:   304 SS, 316/316L SS, PTF, RPTFE, 2Cr13, Monel, Hastelloy, Titanium Alloy etc.
Regulating Ratio:   25:1 (60°„opening), 50:1 (90°„opening),
Leak Tolerance:   ANSI B 16.5.104ĘŲ Grade (soft seal),  ANSI B 16.5.104Ęű/ĘŲ Grade (hard seal)
Structural Type:   Soft seal, Hard seal

 

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