High Flow Pneumatic Hard Seated Butterfly Valve
High Flow Pneumatic Hard Seated Butterfly Valve Overview
Pneumatic hard seal butterfly valve belongs to long life, high quality butterfly valve, using three-dimensional eccentric principle design, the main hard seal butterfly valve and pneumatic actuator connected to the composition of the valve seat and disc plate sealing surface made of different hardness of the metal material or stainless steel, with high temperature, corrosion resistance, wear resistance and other advantages. Pneumatic hard seal butterfly valve adopts hard and soft seal compatible multi-layer structure, no matter in low temperature or high temperature working conditions can ensure excellent sealing performance, and the valve in the opening and closing disc plate and seat basically no friction phenomenon, greatly improving the service life of the butterfly valve. Pneumatic hard seal butterfly valve is widely used in electric power, oil, steam, air, sewage and other media in the pipeline, is the best device for switching control or flow regulation.
High Flow Pneumatic Hard Seated Butterfly Valve Main Technical Parameters
| DN（mm) | 50～2000 | |||
| PN（MPa) | 0.6 | 1.0 | 1.6 | 2.5 |
| Sealing test(MPa) | 0.66 | 1.1 | 1.76 | 2.75 |
| Strength test(MPa) | 0.9 | 1.5 | 2.4 | 3.75 |
| Applicable temperature | Carbon Steel：-29℃～425℃ Stainless steel：-40℃～650℃ | |||
| Applicable media | Water, air, natural gas, oil and weakly corrosive fluids | |||
| Leakage rate | GB/T13927-92 | |||
| Control method | Switching type, Regulating type | |||
High Flow Pneumatic Hard Seated Butterfly Valve Main Component Materials
| Part Name | Materials |
| Valve body | WCB,alloy steel,stainless steel |
| Butterfly plate | WCB,alloy steel,stainless steel |
| Valve spindle | 2Cr13 stainless steel、alloy steel |
| Seals | stainless steel ring |
| Filler | flexible graphite |
High Flow Pneumatic Hard Seated Butterfly Valve Adoption of Standards
| Manufacturing Standard | JB/T 8527-97 |
| Flange Standards | GB9113-2000 |
| Structure length standard | GB12221-89 |
| Inspection Standards | GB/T 13927-92 |
High Flow Pneumatic Hard Seated Butterfly Valve Structure Size
|
DN |
Main dimensions |
Flange size and bolt specification |
|||||
|
1.0MPa |
1.6MPa |
2.5MPa |
|||||
|
L |
D1 |
4-Фd |
D1 |
4-Фd |
D1 |
4-Фd |
|
|
50 |
43 |
125 |
Ф18 |
125 |
Ф18 |
125 |
Ф18 |
|
65 |
46 |
145 |
Ф18 |
145 |
Ф18 |
145 |
Ф18 |
|
80 |
49 |
160 |
Ф18 |
160 |
Ф18 |
160 |
Ф18 |
|
100 |
56 |
180 |
Ф18 |
180 |
Ф18 |
190 |
Ф23 |
|
125 |
64 |
210 |
Ф18 |
210 |
Ф18 |
220 |
Ф27 |
|
150 |
70 |
240 |
Ф23 |
240 |
Ф23 |
250 |
Ф27 |
|
200 |
71 |
295 |
M20 |
295 |
M20 |
310 |
M24 |
|
250 |
76 |
350 |
M20 |
355 |
M24 |
370 |
M27 |
|
300 |
83 |
400 |
M20 |
410 |
M24 |
430 |
M27 |
|
350 |
92 |
460 |
M20 |
470 |
M24 |
490 |
M30 |
|
400 |
102 |
515 |
M24 |
525 |
M27 |
550 |
M33 |
|
450 |
114 |
565 |
M24 |
585 |
M27 |
600 |
M33 |
|
500 |
127 |
620 |
M24 |
650 |
M30 |
660 |
M33 |
|
600 |
154 |
725 |
M27 |
770 |
M33 |
770 |
M36 |
|
700 |
165 |
840 |
M27 |
840 |
M33 |
875 |
M39 |
|
800 |
190 |
950 |
M30 |
950 |
M36 |
990 |
M45 |
|
900 |
203 |
1050 |
M30 |
1050 |
M36 |
1090 |
M45 |
|
1000 |
216 |
1160 |
M33 |
1170 |
M39 |
1210 |
M52 |
|
1200 |
254 |
1380 |
M36 |
1390 |
M45 |
1420 |
M52 |