Butterfly Valve
Our butterfly valve includes Dou-eccentric butt-clamp B.V.， Dou-eccentric flang B.V.，Three-eccentric flange B.V.， Dou-eccentric flang B.V.，Dou-eccentric butt-weld B.V.，ANSI dou-eccentric buttclamp D.V.，Dou-eccentric butt-weld B.V.，Wafer Type Steam Jacket Butterfly Valve，Flanged Type Steam Jacket Butterfly Valve，Dou-eccentric flang.B.V，Wafer Lined Type Butterfly Valve
The series of the butterfly valves can be applied to food, drink, medicine, chemical industry, industrial environmental protection water treatment, high building, water supply and drainage, etc. used to start or stop or adjust medium flow quantity. The major
features of the structure.
1. Simple structure, small volume, light weight, small installation dimension.
2. Having two kinds of seal material: soft and hard, can be used in various working conditions, with good sealing performance, and long life.
3. Anti-fire structure designed butterfly valve can prevent the expanding of an accidental fire, once the soft sealing valve
seat of the butterfly valve catches fire and damaged, the stainless steel seal ring will give play to make butterfly valve keep emergency sealed.
4. In the condition of the butterfly valve fully opened, it has little flow resistance, and in the condition of the butterfly valve
partially opened, the flow quantity can be controlled sensitively.
5. Little driving torgue, convenient and quick operations.
Specifications:
Norminal size:DN40~2000(mm)、1 1/2″~40″
Pressure grade: PN0.6~4.0(MPa)、Class150~300
Driving Type ：Manual Operated, Wormgear actuated ，Pneumatic actuated ，Electric actuated
Connecting Manner : Flange connecting ，Welded connection ，Wafer
Structure Manner :single eccentric seal,double eccentric seal,threeeccentric seal
Sealing Material Code
Body Material :WCB、CF8、CF8M ，CF3、CF3M、ZTA2
Sterm Material:1Cr13、2Cr13、TC4、 1Cr18Ni9Ti、0Cr18Ni12Mo2Ti
Disc Material: WCB、CF8、CF8M CF3、CF3M、ZTA2
Plate Material: WCB、CF8、CF8M CF3、CF3M、ZTA2
Packing Material:Graphite、 PTFE、PPL
