|
 |
Product |
 |
Feature and purpose |
| • Compact structure, reasonable design, good rigidity, smooth channel, small flow resistance coefficient.
• The sealing face is made of stainless steel and carbide alloy, long durable.
• Use flexible graphite packing, reliably sealed and flexibly operated.
• Of manual, electric, pneumatic and gear actuating modes, and elastic wedge type single gate, rigid wedge type single and dual gates types of structure.
Widely suitable for the oil goods, water and steam pipelines in the petrochemical, power plant etc. places to act as the open-close device to get through or cut off the medium. |
|
1 |
Design, manufacture |
GB12234-89 |
|
2 |
Flange dimension |
JB/T79-94 |
|
3 |
Welded-end dimension |
GB12224 |
|
4 |
Inspection, test |
JB/T9092-1999 |
|
5 |
Actuation mode |
Manual, electric, gear |
| Performance specification |
|
PN(MPa) |
Test pressure (MPa)
|
|
Casing |
Seal (liquid) |
Seal (air) |
Upper seal |
|
1.6 |
2.4 |
1.8 |
0.6 |
1.8 |
|
2.5 |
3.8 |
2.8 |
0.6 |
2.8 |
|
4.0 |
6.0 |
4.4 |
0.6 |
4.4 |
|
6.4 |
9.6 |
7.0 |
0.6 |
7.0 |
|
10.0 |
15.0 |
11.0 |
0.6 |
11.0 |
|
16.0 |
24.0 |
18.0 |
0.6 |
18.0 |
|
Casing material |
Suitable media |
Suitable temperature ( ¡ã C) |
|
Carbon steel (type C) |
Water, steam, oil goods |
¡Ü425 |
|
CrNiTi steel (type P) |
Nitric acid |
¡Ü200 |
|
CrNiMoTi steel (type R) |
Acetic acid |
¡Ü200 |
|
CrMo steel (type I) |
Water, steam, oil goods |
¡Ü550 |
|
Body, bonnet |
Valve board, seat ring |
Stem |
Stem nut |
Packing |
Handwheel |
|
Carbon steel |
Quality carbon steel + carbide alloy or SS |
Cr-SS |
Al-bronze |
Graphite-asbestos packing |
Forgeable cast iron |
|
CrNiTi steel |
SS, SS+carbide alloy |
CrNiTi-SS |
Al-bronze |
Soaked PTFE graphite packing |
Forgeable cast iron |
|
CrNiMoTi steel |
SS, SS+carbide alloy |
CrNiMoTi-SS |
Al-bronze |
|
Forgeable cast iron |
|
CrMo steel |
Alloy steel+carbide alloy |
CrMoAl steel |
Al-bronze |
Flexible graphite |
Forgeable cast iron |
| Structural drawing of product |
| Main dimensions and weight |
| Z940(Z941)-PN16¡¢25¡¢40¡¢64¡¢100¡¢160 |
|
PN (Mpa) |
DN |
Out-form and connection dimensions (mm) |
Electric actuator |
Weight (Kg) |
|
L |
D |
D1 |
D2 |
b |
f |
z-d |
H |
|
1.6
|
40 |
200 |
145 |
110 |
85 |
16 |
3 |
4-18 |
595 |
DZW15 |
56 |
|
50 |
250 |
150 |
125 |
100 |
18 |
3 |
4-18 |
653 |
DZW20 |
59 |
|
65 |
265 |
180 |
145 |
120 |
18 |
30 |
4-18 |
665 |
DZW20 |
62 |
|
80 |
280 |
195 |
160 |
135 |
20 |
3 |
8-18 |
725 |
DZW20 |
74 |
|
100 |
300 |
215 |
180 |
155 |
20 |
3 |
8-18 |
787 |
DZW20 |
92 |
|
150 |
350 |
280 |
240 |
210 |
24 |
3 |
8-23 |
955 |
DZW30 |
161 |
|
200 |
400 |
335 |
295 |
265 |
26 |
3 |
12-23 |
1105 |
DZW30 |
219 |
|
250 |
450 |
405 |
355 |
320 |
30 |
3 |
12-25 |
1343 |
DZW45 |
376 |
|
300 |
500 |
460 |
410 |
375 |
30 |
3 |
12-25 |
1516 |
DZW60 |
484 |
|
350 |
550 |
520 |
470 |
435 |
34 |
4 |
16-25 |
1678 |
DZW60 |
695 |
|
400 |
600 |
580 |
525 |
485 |
36 |
4 |
16-30 |
1849 |
DZW90 |
977 |
|
450 |
650 |
640 |
585 |
545 |
40 |
4 |
20-30 |
1937 |
DZW90 |
1033 |
|
500 |
700 |
705 |
650 |
608 |
44 |
4 |
20-34 |
2234 |
DZW120 |
1087 |
|
600 |
800 |
840 |
770 |
718 |
48 |
5 |
20-41 |
2432 |
DZW180 |
1357 |
|
700 |
900 |
910 |
840 |
788 |
50 |
5 |
24-41 |
2489 |
DZW250 |
1481 |
|
800 |
1000 |
1020 |
950 |
898 |
52 |
5 |
24-41 |
2643 |
DZW350 |
1845 |
|
