Pneumatic soft seal flange butterfly valve
详情介绍
The product description
Pneumatic soft seal flange butterfly valve
USES and features
Soft seal butterfly valve is suitable for food, medicine, chemical industry, petroleum, electric power, light textile, papermaking and other water supply and drainage, gas pipeline for regulating the flow rate and blocking medium on the temperature ≤120℃, nominal pressure ≤ 1.6mpa. Its main features are:
1. Novel design, reasonable, unique structure, light weight, quick opening and closing.
2, small operating torque, easy to operate, labor saving dexterity.
3, can be installed at any location, easy maintenance.
4, the sealing parts can be replaced, the sealing performance is reliable to achieve zero leakage of two-way sealing.
5, sealing material aging, corrosion resistance, long service life and other characteristics.
With a standard
Design standard: GB/ t2238-1989
Flange connection size :GB/ t9113.1-2000; GB/T9115.1-2000; JB78
Structure length :GB/ t12221-1989
Pressure test :GB/ t13927-1992; JB/T9092-1999
Main technical parameters
| Nominal diameter | DN（mm） | 50～2000 | ||
| Nominal Pressure | PN（MPa） | 0.6 | 1.0 | 1.6 |
| Test pressure | strength test | 0.9 | 1.5 | 2.4 |
| Seal test | 0.66 | 1.1 | 1.76 | |
| Air Seal Test | 0.6 | 0.6 | 0.6 | |
| Applicable | Air, water, sewage, steam, gas, oil, etc. | |||
| Drive type | Manual, worm and wheel drive, gas drive, electric drive. | |||
Material for main parts
| Part Name | Materials |
| valve body | Q345B, ductile steel, cast steel, alloy steel, stainless steel |
| Butterfly Plate | Gray cast iron, ductile steel, cast steel, stainless steel and special materials |
| Ball seat | All kinds of rubber, ptfe |
| valve rod | 2Cr13, stainless steel |
| Stuffing | O-ring, flexible graphite O |
Butterfly valve sealing material selection and applicable temperature
| description of materials | Neoprene | Buna-N rubber | EPDM | PTFE | VMQ | FKM |
| code | X or J | XA or JA | XB or JB | XC、JC or F | XD or JD | XE or JE |
| Maximum temperature tolerance | 82℃ | 93℃ | 150℃ | 232℃ | 250℃ | 204℃ |
| Minimum temperature tolerance | -40℃ | -40℃ | -40℃ | -268℃ | -70℃ | -23℃ |
| Applicable operating temperature | ≤65℃ | ≤80℃ | ≤120℃ | ≤200℃ | ≤200℃ | ≤180℃ |
Dimensions
| D41 | X | - | 6 | Z.Q.C.P.RSerial connection dimensions |
| 10 | ||||
| J | 16 |
| DN | The length of the structure | Overall dimensions (reference value) | Connection size (standard value) | Reference Weight（kg） | |||||||||||||||
| 0.6MPa | 1.0MPa | 1.6MPa | |||||||||||||||||
| mm | HWD | L | H | H0 | A | B | D | D1 | D2 | n-d | D | D1 | D2 | n-d | D | D1 | D2 | n-d | |
| 50 | 2 | 108 | 82.5 | 238 | 270 | 65 | 140 | 110 | 88 | 4-14 | 165 | 125 | 99 | 4-18 | 165 | 125 | 99 | 4-18 | 8.5 |
| 65 | 21/2 | 112 | 92.5 | 258 | 270 | 65 | 160 | 130 | 108 | 4-14 | 185 | 145 | 118 | 4-18 | 185 | 145 | 118 | 4-18 | 9.5 |
| 80 | 3 | 114 | 100 | 278 | 270 | 65 | 190 | 150 | 124 | 4-18 | 200 | 160 | 132 | 8-18 | 200 | 160 | 132 | 8-18 | 11 |
| 100 | 4 | 127 | 110 | 293 | 270 | 65 | 210 | 170 | 144 | 4-18 | 220 | 180 | 156 | 8-18 | 220 | 180 | 156 | 8-18 | 15 |
| 125 | 5 | 140 | 125 | 309 | 310 | 65 | 240 | 200 | 174 | 8-18 | 250 | 210 | 184 | 8-18 | 250 | 210 | 184 | 8-18 | 21 |
| 150 | 6 | 140 | 142.5 | 336 | 310 | 65 | 265 | 225 | 199 | 8-18 | 285 | 240 | 211 | 8-22 | 285 | 240 | 211 | 8-22 | 24 |