Scum gate valve is used for ash discharge system to connect or cut off grey water mixture and slag water slurry in water systems of thermal power station and water conservancy project.
Working pressure: 1.6-6.4MPa
Temperature: 0-100℃
Characteristics:
1. Adopting flange for connection. Two ends of branch pipe is flange or butt welding;
2. Disc adopts semi seal to mandatory seal, having good characteristics;
3. Sealing pair is made of wear resistant ceramic and alloy, having excellent wear resistance, long service life, low friction force and reliable seal.
4. Having reasonable runner without any dregs;
5. Stem and surface have been tempered and nitrided, having good corrosive resistance.
6. Having rolling bearings.
Standards
Design: GB 12334, GB 3595
Length: GB 12221
Pressure-temperature: GB 9131, JB/T 74, HG 20604
Flange: JG/T 79, GB9113, HG 20593-20635
Testing & inspection: GB 13927, JB/T 9092
Materials
Body
Bonnet
Holder
Disc
Stem
Base
Seal
ring
Packing
Stem
nut
WCB
WCB
WCB
WCB+alloy
2Cr13
WCB+alloy
Flexible
graphite
Flexible
graphite
ZCuA11
Dimensions
Nominal Pressure PN |
Nominal Diameter DN |
Dimensions |
|||||||||
L |
D |
D1 |
D2 |
D6 |
b |
f |
Z-d |
H |
D0 |
||
150Lb |
50 |
250 |
160 |
125 |
100 |
- |
16 |
3 |
4-18 |
335 |
250 |
80 |
280 |
195 |
160 |
135 |
- |
20 |
3 |
8-18 |
510 |
280 |
|
100 |
300 |
215 |
180 |
155 |
- |
20 |
3 |
8-18 |
685 |
300 |
|
150 |
350 |
280 |
240 |
210 |
- |
24 |
3 |
8-23 |
790 |
300 |
|
200 |
400 |
335 |
295 |
265 |
- |
26 |
3 |
12-23 |
885 |
350 |
|
250 |
450 |
405 |
355 |
320 |
- |
30 |
3 |
12-25 |
1015 |
400 |
|
300 |
500 |
460 |
410 |
375 |
- |
30 |
3 |
12-25 |
1190 |
450 |
|
350 |
550 |
520 |
470 |
435 |
- |
34 |
4 |
16-25 |
1350 |
500 |
|
400 |
600 |
580 |
525 |
485 |
- |
36 |
4 |
16-25 |
1460 |
500 |
|
450 |
650 |
640 |
585 |
545 |
- |
40 |
4 |
20-30 |
1620 |
550 |
|
500 |
700 |
705 |
650 |
608 |
- |
44 |
4 |
20-34 |
1800 |
550 |
|
200Lb |
50 |
250 |
160 |
125 |
100 |
- |
20 |
3 |
4-18 |
335 |
250 |
80 |
280 |
195 |
160 |
135 |
- |
22 |
3 |
8-18 |
510 |
280 |
|
100 |
300 |
230 |
190 |
160 |
- |
24 |
3 |
8-23 |
685 |
300 |
|
150 |
350 |
300 |
250 |
218 |
- |
30 |
3 |
8-25 |
790 |
300 |
|
200 |
400 |
360 |
310 |
278 |
- |
34 |
3 |
12-25 |
885 |
350 |
|
250 |
450 |
425 |
370 |
332 |
- |
36 |
3 |
12-30 |
1015 |
400 |
|
300 |
500 |
485 |
430 |
390 |
- |
40 |
4 |
16-30 |
1190 |
450 |
|
350 |
550 |
550 |
490 |
448 |
- |
44 |
4 |
16-34 |
1350 |
500 |
|
400 |
600 |
610 |
550 |
505 |
- |
48 |
4 |
16-34 |
1460 |
500 |
|
450 |
650 |
660 |
600 |
555 |
- |
50 |
4 |
20-34 |
1620 |
550 |
|
500 |
700 |
730 |
660 |
610 |
- |
52 |
4 |
20-41 |
1800 |
550 |
|
300Lb |
50 |
250 |
160 |
125 |
100 |
88 |
20 |
3 |
4-18 |
340 |
250 |
80 |
310 |
195 |
160 |
135 |
121 |
22 |
3 |
8-18 |
508 |
300 |
|
100 |
350 |
230 |
190 |
160 |
150 |
24 |
3 |
8-23 |
680 |
300 |
|
150 |
450 |
300 |
250 |
218 |
204 |
30 |
3 |
8-25 |
800 |
400 |
|
200 |
550 |
375 |
320 |
282 |
260 |
38 |
3 |
12-30 |
875 |
500 |
|
250 |
650 |
445 |
385 |
345 |
313 |
42 |
3 |
12-34 |
1010 |
500 |
|
300 |
750 |
510 |
450 |
408 |
364 |
46 |
4 |
16-34 |
1180 |
550 |
|
350 |
850 |
570 |
510 |
465 |
422 |
52 |
4 |
16-34 |
1145 |
600 |
|
400 |
950 |
655 |
585 |
535 |
474 |
58 |
4 |
16-41 |
1280 |
600 |
|
450 |
1050 |
680 |
610 |
560 |
524 |
60 |
4 |
20-41 |
1415 |
700 |
|
500 |
1150 |
755 |
670 |
612 |
576 |
62 |
4 |
20-48 |
1560 |
750 |