The high-pressure gate valve is suitable for various working conditions of petroleum, chemical and thermal power plants with nominal pressure of pn1.6 ~ 42.0mpa (cl150-cl2500) and working temperature of - 46 ~ 600 ℃.
Its main structural features are as follows
1. The product has reasonable structure, reliable sealing, excellent performance and beautiful appearance.
2. The sealing surface is overlaid with Co based cemented carbide, which has good wear resistance, corrosion resistance, scratch resistance and long service life.
3. After quenching and tempering and surface nitriding treatment, the valve stem has good corrosion resistance and scratch resistance.
4. The valve is equipped with reverse sealing structure, which is reliable.
5. The material and size of flange and butt welding end can be reasonably selected according to actual working conditions or user requirements to meet various engineering needs.
1. Low fluid resistance, small erosion and erosion of sealing surface by medium (high opening height of gate);
2, strong opening, good sealing performance, medium flow is not restricted, no disturbance, no pressure drop;
3, simple shape, good manufacturing process, wide range of application.
Design specification :GB/T12234
Structure length: GB/T122
Connection flange: JB/T 79, GB/T9113, HG/T20592
Test and inspection: GB/T13927, JB/T9092
Pressure-temperature: GB/T 12224
Product specification: DN40~800mm
Pressure grade: PN1.6~16.0
Suitable medium: water, steam, oil, nitric acid, acetic acid, etc
Applicable temperature: ≤550℃
DN(mm) |
L |
D |
D1 |
D2 |
b-f |
z-φd |
H |
Z40H-10C Z40Y-10P/R/PL/RL Z40W-10P/R/PL/RL Z40Y-10I (KZ41Y) Z41Y-10C Z41Y-10P/R/PL/RL Z41W-10P/R/PL/RL Z41Y-10I (KZ41Y) |
|||||||
15 |
108 |
95 |
65 |
45 |
16-2 |
4-14 |
185 |
20 |
117 |
105 |
75 |
58 |
18-2 |
4-14 |
200 |
25 |
127 |
115 |
85 |
68 |
18-2 |
4-14 |
225 |
32 |
140 |
140 |
100 |
78 |
18-2 |
4-18 |
275 |
40 |
240 |
150 |
110 |
88 |
18-3 |
4-18 |
290 |
50 |
250 |
165 |
125 |
102 |
18-3 |
4-18 |
345 |
65 |
270 |
185 |
145 |
122 |
18-3 |
8-18 |
360 |
80 |
280 |
200 |
160 |
138 |
20-3 |
8-18 |
380 |
100 |
300 |
220 |
180 |
158 |
20-3 |
8-18 |
430 |
125 |
325 |
250 |
210 |
188 |
22-3 |
8-18 |
520 |
150 |
350 |
285 |
240 |
212 |
22-3 |
8-22 |
600 |
200 |
400 |
340 |
295 |
268 |
24-3 |
8-22 |
765 |
250 |
450 |
395 |
350 |
320 |
26-3 |
12-22 |
930 |
300 |
500 |
445 |
400 |
370 |
26-4 |
12-22 |
1080 |
350 |
550 |
505 |
460 |
430 |
26-4 |
16-22 |
1200 |
400 |
600 |
565 |
515 |
482 |
26-4 |
16-26 |
1400 |
450 |
650 |
615 |
565 |
532 |
28-4 |
20-26 |
1500 |
500 |
700 |
670 |
620 |
585 |
28-4 |
20-26 |
1630 |
600 |
800 |
780 |
725 |
685 |
34-5 |
20-30 |
1830 |
700 |
900 |
895 |
840 |
800 |
34-5 |
24-30 |
1930 |