Large caliber butterfly valve for hydraulic engineering
AP1609 Butterfly Valve Button: API609, Butterfly Valve, Splint, Flange, Tow, Welding, WCB.CF8M.Size :NPS 1/2 to NPS80 (DN15 to DN2000) Pressure range: CLASS150, CLASS300, CLASS600, CLASS900 Material: Casting : (A995 4A).5, A216 WCB.A351 evil.CF8.CF3M.Design and manufacture of Monel, Inconel, Hastelloy, C95800, 2205, 2507, 904L API609, EN593.ISO10631 API609 face-to-face, ASME B16.10.IS05752 series13, EN . .
Function is introduced：Butterfly plate in the valve body around a fixed shaft rotation valve, called the butterfly valve.
use： In the throttling, regulating control and mud medium, short structure length, fast opening and closing speed, low pressure cut-off (pressure difference is small), recommended to choose butterfly valve.
Butterfly valve can be used when double-position regulation, diameter reduction channel, low noise, cavitation and vaporization phenomenon, a small amount of leakage to the atmosphere and abrasive medium.
In the special working conditions of throttling regulation, or strict sealing, serious wear, low temperature (cold) and other working conditions can also be selected butterfly valve.
Advantages：Easy to open and close quickly, labor saving, fluid resistance is small,Simple structure, small volume, light weight，Good regulation performance
disadvantages：Small range of working pressure and temperature，Poor sealing
disadvantages：wafer type/Lug type/flanged
material：cast iron/cast steel/stainless steel