0086-577-67316655
fyv@fyvvalve.com
+8613588924788
Fangyuan Industrial Park, Anfeng Industrial Zone. Obei and Wenzhou, Zhejiang. China.
●Valve type code: D--Butterfly valve
●Driving manner code: 3-—Worm wheel and screw transmission 6-Air driving 9--Electric driving(Hand wheel driving omitted)
●Connecting type code: 1--Flange connecting 6-Welded connection 7-Wafer type connecting
●Design feature code: 2-Single eccentric structure 3-Double eccentric structure 4-Veriable eccentric structure
4-Veriable eccentric structure 5-Three eccentric structure
●Sealing formation code: X-Rubber F-polytetrafluoroethylene H—Alloy steel W—Stainless steel body Y—Hard alloy
●Pressure grade code: The 10 times of the nominal pressure MPa, pound grade io practical number
●Body materialcode: Z-HT200 C-WCB P-CF8、ZG1Cr18Ni9Ti R-CF8M、ZG1Cr18Ni12Mo2Ti
The series of the butterfly valves can be applied to food,drink,medicine,chemical industry,industrial environmental protection water treatment,high building,water supply, drainage and gas, 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-span.
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 couple,convenient and quick operations.
| Structural formation | Three eccentric structure | |
| Design reference | GB | API |
| Driving manner | Hand-operated, worm wheel & worm screw pneumatic operated, Electric-driving | |
| Design standard | GB/T 12238 | API609、MSS.SP-68 |
| Face to face | GB/T 12221 | ASMEB16.10、API609、MSS.SP-68 |
| Flanged ends | JB/T 79、JB/T 82、GB/T9115 | ASMEB16.5、ASMEB16.47 |
| Test & inspection | JB/T 9092 | API 598 |
Notes: The sizes of valve connecting flange and butt-welding terminas can be designed according to customer's requirement.
| NO. | Part name | Material | NO. | Part name | Material |
| 1 | Body | WCB、CF8、CF8M CF8C、CF3、CF3M |
5 | Packing | Graphite |
| 2 | Stem | 1Cr13、2Cr13、1Cr18Ni9Ti、 OCr18Ni12Mo2Ti |
6 | Stuffing cover | WCB、CF8、CF8M |
| 3 | Disc | WCB+F4、WCB+Stainless steel composite materials WCB+F6、CF8、CF8M |
7 | Yoke | WCB、CF8、CF8M、CF3、CF3M |
| 4 | Packing seat | 2Cr13 | 8 | Wormdevice |
Notes: Relevant material of america standard is not to be particularized respectively.
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