Applications and specifications
Developed from the NQ series cast basalt wear-resistant ball valve, this three-way diverter valve is used to change pumps, switch pipelines and redirect flow. The source describes wear and corrosion resistance, easy operation and tight sealing, and reports long-term use in thermal power and petrochemical installations with service life exceeding that of other valves by more than twenty times.
Main performance specifications
|
Nominal diameter DN (mm)
|
100-500 |
|
Nominal pressure PN (MPa) |
1.0-6.4 |
|
Service media |
Slurry, ash/slag slurry, crude oil, oil, water and steam |
|
Operating temperature |
-40-120、-40-250 |
|
Actuation |
Electric |
Main component materials
|
Component
|
Material |
|
Body and bonnet |
WCB |
|
Ball |
WCB＋1Cr18Ni9Ti |
|
Flow passage |
Cast basalt |
|
Stem |
40Cr |
|
Sealing ring |
Polytetrahydrofuran polyether, fluororubber |
Outline and main dimensions
|
Dimensions (mm) |
L |
H |
H1 |
D |
k |
D1 |
D2 |
C |
f |
Z-Φd |
|
|
Nominal diameter DN (mm) |
|||||||||||
|
Pressure (MPa) |
|||||||||||
|
1 |
100 |
616 |
600 |
150 |
220 |
180 |
156 |
300 |
21 |
3 |
8-Φ18 |
|
125 |
616 |
614 |
160 |
250 |
210 |
184 |
320 |
21 |
3 |
8-Φ18 |
|
|
150 |
616 |
629 |
176 |
285 |
240 |
211 |
352 |
21 |
3 |
8-Φ22 |
|
|
200 |
685 |
699 |
214 |
340 |
295 |
266 |
428 |
25 |
3 |
8-Φ22 |
|
|
250 |
685 |
729 |
244 |
395 |
350 |
319 |
488 |
25 |
3 |
12-Φ22 |
|
|
300 |
685 |
759 |
277 |
445 |
400 |
370 |
554 |
29 |
4 |
12-Φ22 |
|
|
350 |
855 |
875 |
325 |
505 |
460 |
429 |
650 |
29 |
4 |
16-Φ22 |
|
|
400 |
855 |
915 |
365 |
565 |
515 |
480 |
730 |
34 |
4 |
16-Φ26 |
|
|
450 |
855 |
964 |
402 |
615 |
565 |
530 |
804 |
34 |
4 |
20-Φ26 |
|
|
500 |
855 |
1004 |
443 |
670 |
620 |
582 |
885 |
39 |
4 |
20-Φ26 |
|
|
1.6 |
100 |
616 |
600 |
150 |
220 |
180 |
156 |
300 |
21 |
3 |
8-Φ18 |
|
125 |
616 |
614 |
160 |
250 |
210 |
184 |
320 |
21 |
3 |
8-Φ18 |
|
|
150 |
616 |
629 |
176 |
285 |
240 |
211 |
352 |
21 |
3 |
8-Φ22 |
|
|
200 |
685 |
699 |
214 |
340 |
295 |
266 |
428 |
25 |
3 |
12-Φ22 |
|
|
250 |
685 |
729 |
244 |
405 |
355 |
319 |
488 |
25 |
3 |
12-Φ26 |
|
|
300 |
685 |
759 |
277 |
460 |
410 |
370 |
554 |
29 |
4 |
12-Φ26 |
|
|
350 |
855 |
875 |
325 |
520 |
470 |
429 |
650 |
29 |
4 |
16-Φ26 |
|
|
400 |
855 |
915 |
365 |
580 |
525 |
480 |
730 |
34 |
4 |
16-Φ30 |
|
|
450 |
855 |
964 |
402 |
640 |
585 |
548 |
804 |
34 |
4 |
20-Φ30 |
|
|
500 |
855 |
1004 |
443 |
715 |
650 |
609 |
885 |
39 |
4 |
20-Φ33 |
|
|
2.5 |
100 |
616 |
600 |
150 |
235 |
190 |
156 |
300 |
22 |
3 |
8-Φ22 |
|
125 |
616 |
614 |
160 |
270 |
220 |
184 |
320 |
22 |
3 |
8-Φ26 |
|
|
150 |
616 |
629 |
176 |
300 |
250 |
211 |
352 |
24 |
3 |
8-Φ26 |
|
|
200 |
685 |
699 |
214 |
360 |
310 |
274 |
428 |
25 |
3 |
12-Φ26 |
|
|
250 |
685 |
729 |
244 |
425 |
370 |
330 |
488 |
28 |
3 |
12-Φ30 |
|
|
300 |
685 |
759 |
277 |
485 |
430 |
389 |
554 |
32 |
4 |
16-Φ30 |
|
|
350 |
855 |
875 |
325 |
555 |
490 |
448 |
650 |
35 |
4 |
16-Φ33 |
|
|
400 |
855 |
915 |
365 |
620 |
550 |
503 |
730 |
38 |
4 |
16-Φ36 |
|
|
450 |
855 |
964 |
402 |
670 |
600 |
548 |
804 |
38 |
4 |
20-Φ36 |
|
|
500 |
855 |
1004 |
443 |
730 |
660 |
609 |
885 |
42 |
4 |
20-Φ36 |
|
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