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SHUTOFF VALVE PN 6,3
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 To be installed at pipelines that carry water or steam.
Body parts are carbon steel (AISI 1020).
Rated pressure PN 63 bar.
Fluid temperature: up to 425оС
Joints: flanged or welded.
To be employed in regions with temperate climate.
Table 1
| Designation |
Specification |
PN, MPa |
| АК 21002 |
15c27ng |
6,3 |
Table 2
| Designation |
DN,
mm |
Joint to pipeline |
Fig. |
Dimensions, mm |
Weight, kg |
| L |
L1 |
H |
| АК 21002-015.00-01 |
15 |
welded |
1 |
175 |
- |
212 |
2,3 |
| 03 |
flanged |
2 |
- |
175 |
230 |
4,5 |
| 05 |
with mated flanges |
3 |
- |
267 |
230 |
7,6 |
| АК 21002-020.00-01 |
20 |
welded |
1 |
190 |
- |
252 |
3,2 |
| 03 |
flanged |
2 |
- |
190 |
274 |
6,5 |
| 05 |
with mated flanges |
3 |
- |
298 |
274 |
11,5 |
| АК 21002-025.00-01 |
25 |
welded |
1 |
200 |
- |
263 |
3,8 |
| 03 |
flanged |
2 |
- |
200 |
285 |
7,6 |
| 05 |
with mated flanges |
3 |
- |
312 |
285 |
12,5 |
| АК 21002-032.00-01 |
32 |
welded |
1 |
210 |
- |
320 |
5,2 |
| 03 |
flanged |
2 |
- |
210 |
343 |
9,2 |
| 05 |
with mated flanges |
3 |
- |
320 |
343 |
18,1 |
| АК 21002-040.00-01 |
40 |
welded |
1 |
225 |
- |
327 |
6,5 |
| 03 |
flanged |
2 |
- |
225 |
351 |
10,75 |
| 05 |
with mated flanges |
3 |
- |
355 |
351 |
21,2 |
Design options of Shutoff Valve PN 6,3
Main design features and advantages
- Ground in shutoff surface of body is hardfaced with wear-resistant and rustproof material that ensures perfect tightness and long service life.
- Piston is made of hard material.
- High structural strength and long service made of die-forged body.
- Stuffing box is filled with rings made of Graflex that ensures long time operation at high temperatures.
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