High Quality Center Line Folder Soft Seal Butterfly Valve
China High Quality Center Line Folder Soft Seal Butterfly Valve, Find details about China Butterfly Valve, Angle Valve from High Quality Center Line Folder Soft Seal Butterfly Valve
Basic Info.
Model NO.
D671X-10/16
Application
Industrial Usage, Water Industrial Usage
Service
OEM/ODM
Shelf Life
18 Months
Trademark
Daisen
Transport Package
Poly Bag, Inner Box, Outer Carton /and Pallet
Specification
DN50-350
Origin
China
HS Code
8481804090
Model NO.
D671X-10/16
Application
Industrial Usage, Water Industrial Usage
Service
OEM/ODM
Shelf Life
18 Months
Trademark
Daisen
Transport Package
Poly Bag, Inner Box, Outer Carton /and Pallet
Specification
DN50-350
Origin
China
HS Code
8481804090
Product Desciption
Centerline Seal Butterfly Valve
With the disc seal center of butterfly valve and rotation center of stem overlapped,sealing load Will be produced between the sealing faces of seat and disc under certainmagnitude of interference. Thus to ensure effective seal of valve. Lined with rubber on body.This structure is applicable for me-dium and small-bore butterfly valves. Due to thedeformation under extrusion.during the process of opening and closing, disc is alwaysunder extrusion.So. the upper and lower valve shafts are seriously extruded, whichcan be bad to the service life of valve. And. the open-close moment of valve is rela-tively high. The defect is that disc and seat are always under extrusion, scra- tch, highresistance andserious adrasion. To overcome extrusion and scratch and to ensuregood seal, seat basically uses rubber or PTFE,or other elastic materials. However,temperature can be a problem. This is why butterfly valves are ,conventionally, notresistant to high temperature.
With the disc seal center of butterfly valve and rotation center of stem overlapped,sealing load Will be produced between the sealing faces of seat and disc under certainmagnitude of interference. Thus to ensure effective seal of valve. Lined with rubber on body.This structure is applicable for me-dium and small-bore butterfly valves. Due to thedeformation under extrusion.during the process of opening and closing, disc is alwaysunder extrusion.So. the upper and lower valve shafts are seriously extruded, whichcan be bad to the service life of valve. And. the open-close moment of valve is rela-tively high. The defect is that disc and seat are always under extrusion, scra- tch, highresistance andserious adrasion. To overcome extrusion and scratch and to ensuregood seal, seat basically uses rubber or PTFE,or other elastic materials. However,temperature can be a problem. This is why butterfly valves are ,conventionally, notresistant to high temperature.
| Design Standard | GB/T12238 | API609,MSS SP-67 | |||||
| Pressure-Temperature Rating | GB/T12224 | API609 | |||||
| Face-Face | GB/T12221 | API609 | |||||
| Flange Ends | GB/T9113,JB/T79 | ASME B16.1\B16.5\B16.47\BS4504 | |||||
| Inspection&Test | JB/T9092,GB/T13927 | API598 | |||||
| Norminal Pressure(MPa) | 1.0 | 1.6 | 2.0 | CLASS125 | CLASS150 | CLASS250 | |
| (MPa) Test Pressure | Shell Test | 1.5 | 2.4 | 3.0 | 1.55 | 2.94 | 3.11 |
| High Pressure Seal Test | 1.1 | 1.76 | 2.2 | 1.13 | 2.16 | 2.28 | |
| Low Pressure Seal Test | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | |
| Applicable Temperature | -10ºC~90ºC() Different raw material for different work temperature | ||||||
| Applicable Medium | Water,oil,gas and other non-causticity medium(Different raw material for different medium) | ||||||
| No | Part Name | Materials | Opptional Materials |
| 1 | Body | Cast Iron | Ductile Iron/Carbon steel |
| 2 | Seat | NBR or EPDM | Neoprene,PTFE |
| 3 | Disc | Ductile Cast Iron | Aluminum Bronze,SS,Mnel |
| 4 | Bushing | PTFE | Luberized Bronze |
| 5 | Pin | 316 | Mnel |
| 6 | Stem | 2Cr13 | SS,Mnel |
| H1 | H2 | C | L | Kg | |
| DN | 62 | 240 | 152 | 42 | 4 |
| DN | 70 | 265 | 202 | 45 | 6 |
| DN | 89 | 271 | 202 | 46 | 6 |
| DN | 106 | 295 | 202 | 52 | 8 |
| DN | 120 | 320 | 230 | 55 | 10 |
| DN | 132 | 348 | 272 | 56 | 13 |
| DN | 164 | 418 | 308 | 60 | 24 |
| DN | 200 | 451 | 360 | 66 | 31 |
| DN | 238 | 500 | 380 | 77 | 46 |
| DN | 280 | 576 | 487 | 77 | 72 |
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