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- Oxygen butterfly valve
- Lug API butterfly valve
- Brass butterfly valve
- High pressure butterfly valve
- High pressure gate valve (bevel gear)
- High pressure gate valves
- High pressure globe valve
- High temperature resistant butterfly valve
- API gate valve
- API check valve
- API globe valve
- Hard seal ball valve
- Wear-resistant ball valve
- Discharge valve
- Low temperature gate valve
- Low temperature ball valve
- Bellows valve
- Insulated gate valve
- Insulated ball valve
- Insulated globe valve
- Forged steel high pressure ball valve
- Orbital ball valve
- V-type regulating ball valve
- Regulating valve
- Safety valve
- All metal sealed bidirectional pressure butterfly valve
High pressure butterfly valve
The high pressure butterfly valve is optimized by our technical personnel after absorbing the structure and characteristics of similar foreign products and overcoming the defects existing in the use of the original products, so that its service life is more durable and the sealing is more reliable. The butterfly valve adopts the three-dimensional eccentric design principle, and the sealing pair is composed of two overlapping cone inclined sections. After the eccentric value of the valve body and valve seat, the butterfly plate rotation center can realize the instantaneous contact and separation of opening and closing. The labyrinth seal is realized by the laminated structure of butterfly plate sealing ring metal and graphite, which can not only reduce the switching torque of the valve, but also ensure the sealing performance of the butterfly valve Pressure butterfly valve adopts reducing eccentricity value and enhancing strength of butterfly plate, valve shaft and actuator to realize zero leakage of inlet and outlet bidirectional seal of butterfly valve.
1. The inclined elliptical butterfly plate radial dynamic balance sealing system is adopted, the force on both sides of the valve inlet and outlet is approximately balanced, the opening torque of the valve is small, the positive and reverse sealing performance is reliable, and the bidirectional pressure bearing capacity is 100%;
2. The sealing surface of the valve is made of integral metal sealing ring, which is machined with high precision. The sealing cross-section is elliptical, which forms a sealing pair with the metal sealing surface of the valve seat. When the valve is opened and closed, the sealing surface of butterfly plate contacts or disengages instantaneously along the 360 ° circle, which can quickly and accurately realize the opening or closing action;
3. Three eccentric structure is adopted, that is, an angle eccentricity is added on the basis of double eccentric butterfly valve.
Design specification: GB/T 12238, JB/T8527
Flange connection: GB/T 9113, JB/T79, HG20592
Structure length: GB/T12221
Tests and inspection: GB/T13927
Main material: cast steel, stainless steel, chromium-molybdenum steel, alloy steel, duplex steel
Product specification: DN50~2000mm
Pressure class: PN0.6~ 4.0mpa
Applicable medium: air, water, steam, gas, oil, acid, alkali, salt with weakly corrosive medium, etc
Applicable temperature: Carbon steel: -29℃~425℃ Stainless steel: -40℃~600℃
Driving mode: worm drive, pneumatic drive, electric drive, hydraulic drive
|
DN |
L |
D |
D1 |
D2 |
b |
f |
N-d0 |
A |
K |
E |
F |
H |
H1 |
H2 |
Φ2 |
N-d1 |
|
50 |
108 |
165 |
125 |
102 |
18 |
3 |
4-Φ18 |
180 |
65 |
50 |
13 |
83 |
338 |
28 |
12.6 |
4-Φ7 |
|
65 |
112 |
185 |
145 |
122 |
18 |
3 |
8-Φ18 |
180 |
65 |
50 |
13 |
93 |
358 |
28 |
12.6 |
4-Φ7 |
|
80 |
114 |
200 |
160 |
138 |
20 |
3 |
8-Φ18 |
245 |
65 |
50 |
13 |
100 |
413 |
28 |
12.6 |
4-Φ7 |
|
100 |
127 |
220 |
180 |
158 |
20 |
3 |
8-Φ18 |
240 |
90 |
70 |
13 |
114 |
428 |
28 |
15.77 |
4-Φ10 |
|
125 |
140 |
250 |
210 |
188 |
22 |
3 |
8-Φ18 |
240 |
90 |
70 |
13 |
125 |
444 |
28 |
18.92 |
4-Φ10 |
|
150 |
140 |
285 |
240 |
212 |
22 |
3 |
8-Φ22 |
350 |
90 |
70 |
13 |
143 |
553 |
28 |
18.92 |
4-Φ10 |
|
200 |
152 |
340 |
295 |
268 |
24 |
3 |
12-Φ22 |
350 |
125 |
102 |
13 |
170 |
678 |
38 |
22.1 |
4-Φ12 |
|
250 |
165 |
405 |
355 |
320 |
26 |
3 |
12-Φ26 |
550 |
125 |
102 |
13 |
198 |
742 |
38 |
28.45 |
4-Φ12 |
|
300 |
178 |
460 |
410 |
378 |
28 |
4 |
12-Φ26 |
600 |
125 |
102 |
20 |
223 |
803 |
38 |
31.6 |
4-Φ12 |
|
350 |
190 |
520 |
470 |
438 |
30 |
4 |
16-Φ26 |
600 |
150 |
125 |
20 |
270 |
866 |
45 |
31.6 |
4-Φ14 |
|
400 |
216 |
580 |
525 |
490 |
32 |
4 |
16-Φ30 |
600 |
175 |
140 |
20 |
300 |
940 |
51 |
33.15 |
4-Φ18 |
|
450 |
222 |
640 |
585 |
550 |
40 |
4 |
20-Φ30 |
750 |
175 |
140 |
20 |
340 |
995 |
51 |
37.95 |
4-Φ18 |
|
500 |
229 |
715 |
650 |
610 |
44 |
4 |
20-Φ33 |
750 |
175 |
140 |
22 |
355 |
1058 |
57 |
41.12 |
4-Φ18 |
|
600 |
267 |
840 |
770 |
725 |
54 |
5 |
20-Φ36 |
750 |
210 |
165 |
30 |
410 |
1163 |
70 |
50.63 |
4-Φ22 |
|
700 |
292 |
910 |
840 |
795 |
40 |
5 |
24-Φ36 |
750 |
300 |
254 |
30 |
478 |
1283 |
66 |
63.35 |
8-Φ18 |
|
800 |
318 |
1025 |
950 |
900 |
42 |
5 |
24-Φ39 |
750 |
300 |
254 |
30 |
529 |
1398 |
66 |
63.35 |
8-Φ18 |
|
900 |
330 |
1125 |
1050 |
1000 |
44 |
5 |
28-Φ39 |
1250 |
300 |
254 |
34 |
584 |
1498 |
118 |
75 |
8-Φ18 |
|
1000 |
410 |
1255 |
1170 |
1115 |
46 |
5 |
28-Φ42 |
1500 |
300 |
254 |
34 |
357 |
1608 |
142 |
85 |
8-Φ18 |
|
1200 |
470 |
1485 |
1390 |
1330 |
52 |
5 |
32-Φ48 |
1500 |
350 |
298 |
34 |
799 |
1876 |
150 |
105 |
8-Φ22 |
|
1400 |
530 |
1685 |
1590 |
1530 |
58 |
5 |
36-Φ48 |
- |
415 |
356 |
40 |
919 |
- |
200 |
120 |
8-Φ32 |
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