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Enclosed blind valve
The closed blind valve is mainly composed of left valve body, right valve body, valve stem, gate plate, sealing ring, pneumatic push rod and other parts, and a rigid structure is composed of base and support column. The sealing part adopts stainless steel and rubber sealing ring, which has good sealing performance and long service life. The sealing ring is set on the ram, which is easy to replace when maintaining. The rubber sealing ring is inserted on the ram. The pneumatic push rod blind valve can be controlled by single remote control or multiple remote control via network. Under abnormal conditions, the valve can be operated manually.
The valve is a closed design structure. The valve body adopts a fully enclosed shell. The gas in the pipeline does not leak during the operation, which avoids environmental pollution. It has good resistance to external force of the pipeline. The electro-hydraulic device is set outside for maintenance and inspection. The safety performance of close operation is high. The disadvantage is that it is troublesome to replace rubber ring.
The design of the valve absorbs the advantages of floating valve plate of foreign blind valve; the compression transmission mechanism adopts multi-point synchronous clamping mechanism, which has the characteristics of good sealing performance, reliable operation and convenient maintenance.
Flange standard: GB/T9115-98
Design standards: API 600, API6D, ASME B16.34, GB/T 12234
Structure length: ASME B16.10, API6D, GB/T 12221
Connection standard: ASME B16.5, ASME B16.47, GB/T 9113, JB/T 79, HG/T 20592
Pressure test: API 598, GB/T 13927, JB/T 9092
Pressure - temperature class: ASME B16.34, GB/T 12224
Nominal size: DN400~2800mm
Nominal pressure: PN0.5~ 2.5mpa
Applicable temperature: ≤80℃
Main material: carbon steel
Applicable medium: gas, other combustible gas
|
DN |
L |
D |
D1 |
b |
-φd |
L1 |
H |
H1 |
B |
A |
C |
C1 |
C2 |
e1 |
e |
M-φK |
Weight(kg) |
|||
|
PN0.05 |
PN0.10 |
PN0.15 |
PN0.25 |
|||||||||||||||||
|
400 |
2240 |
540 |
495 |
18 |
16-22 |
750 |
1060 |
320 |
800 |
500 |
950 |
350 |
300 |
250 |
220 |
8-23 |
1800 |
2050 |
||
|
450 |
2480 |
595 |
550 |
18 |
16-22 |
860 |
1260 |
380 |
800 |
500 |
950 |
350 |
300 |
250 |
220 |
8-23 |
2050 |
2080 |
||
|
500 |
2600 |
645 |
600 |
18 |
20-22 |
980 |
1580 |
450 |
800 |
500 |
950 |
350 |
300 |
250 |
220 |
8-23 |
2260 |
2500 |
||
|
600 |
2720 |
755 |
705 |
24 |
20-26 |
1100 |
1750 |
480 |
1050 |
900 |
950 |
350 |
300 |
250 |
220 |
8-23 |
2498 |
2700 |
||
|
700 |
2815 |
860 |
810 |
26 |
24-26 |
1350 |
1884 |
500 |
1070 |
950 |
950 |
350 |
300 |
250 |
220 |
8-23 |
2570 |
2770 |
||
|
800 |
3900 |
975 |
920 |
26 |
24-30 |
1545 |
1970 |
750 |
1070 |
1150 |
950 |
350 |
300 |
250 |
220 |
12-32 |
3100 |
3400 |
||
|
900 |
4400 |
1075 |
1020 |
28 |
24-30 |
2200 |
2028 |
890 |
1100 |
1150 |
950 |
350 |
300 |
250 |
220 |
12-32 |
5050 |
5550 |
||
|
1000 |
4735 |
1175 |
1120 |
30 |
28-30 |
2368 |
2230 |
960 |
100 |
1250 |
950 |
350 |
300 |
250 |
220 |
12-32 |
6745 |
7350 |
||
|
1200 |
6214 |
1375 |
1320 |
30 |
32-30 |
3105 |
2570 |
1060 |
1100 |
1450 |
950 |
300 |
300 |
250 |
220 |
12-32 |
8700 |
9500 |
||
|
1400 |
6915 |
1575 |
1520 |
30 |
36-30 |
3400 |
2850 |
1180 |
1200 |
1450 |
950 |
350 |
300 |
250 |
220 |
16-26 |
9500 |
10300 |
||
|
1600 |
7630 |
1790 |
1730 |
30 |
40-30 |
3600 |
3150 |
1350 |
1200 |
1150 |
920 |
250 |
720 |
475 |
630 |
16-26 |
12350 |
13400 |
||
|
1800 |
8068 |
1990 |
1930 |
30 |
44-30 |
3700 |
3565 |
1580 |
1600 |
1150 |
920 |
250 |
720 |
475 |
630 |
16-26 |
16534 |
17600 |
||
|
2000 |
8718 |
2190 |
2130 |
30 |
48-30 |
3855 |
3825 |
1720 |
1500 |
1924 |
1044 |
522 |
620 |
280 |
512 |
16-26 |
19395 |
20400 |
||
|
2200 |
9320 |
2405 |
2340 |
32 |
52-33 |
4285 |
4150 |
1820 |
1550 |
2030 |
1044 |
500 |
710 |
280 |
606 |
16-26 |
21850 |
23500 |
||
|
2400 |
10000 |
2605 |
2540 |
32 |
56-33 |
4615 |
4660 |
1960 |
1550 |
2130 |
1130 |
565 |
820 |
300 |
710 |
16-26 |
27000 |
29500 |
||
|
2600 |
10700 |
2805 |
2740 |
34 |
60-33 |
5100 |
5150 |
2050 |
1550 |
2130 |
1130 |
565 |
820 |
300 |
710 |
16-26 |
31000 |
34000 |
||
|
2800 |
11400 |
3030 |
2960 |
36 |
61-36 |
5050 |
4580 |
3590 |
1550 |
2380 |
1130 |
565 |
820 |
300 |
710 |
16-26 |
33000 |
36000 |
||
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