Stainless Steel Body-Stainless Steel Disc 300X Slow Closure Check Valve
Product Introduction
The Stainless Steel Body-Stainless Steel Disc 300X Slow Closure Check Valve is designed for corrosive media and high-temperature/pressure systems. Featuring full 304/316 stainless steel construction and mechanical hydraulic slow-close mechanism, it achieves two-stage closure (fast + slow) to mitigate water hammer. Ideal for chemical plants, desalination, and thermal networks, it operates from -20℃ to 200℃ at PN25/ANSI 150 pressure, compatible with DN50-DN500 pipelines.
Product Advantages
- Extreme Environment Durability: Operates from -20℃ cryogenic to 200℃ steam without failure.
- Simplified Control: On-site manual adjustment eliminates external controllers.
- Global Compatibility: ASME B16.5 flanges adapt to ANSI/JIS pipelines.
- Lifecycle Economy: 50% lower cost vs nickel-plated valves due to corrosion resistance.
Product Features
Full Corrosion Resistance
304/316 stainless steel resists strong acids, alkalis, and seawater (salt spray >2000hrs).
01
Adjustable Slow Closure
Manual hydraulic damper controls closure time (3-120s), reducing water hammer by 60%.
02
High-Temperature Endurance
Precision-cast disc withstands 200℃; FKM seals tolerate 180℃.
03
Bidirectional Sealing
Metal-to-metal seat with graphite layer achieves ANSI Class IV sealing in both flow directions.
04
Maintenance-Free Design
All-metal structure with self-lubricating oil chamber ensures ≥10-year service life.
05
|
DN (mm) |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
250 |
300 |
350 |
400 |
450 |
500 |
600 |
|
|
L |
180 |
180 |
180 |
203 |
203 |
215 |
241 |
292 |
330 |
356 |
450 |
500 |
560 |
630 |
700 |
780 |
850 |
980 |
|
|
PN10 |
D |
105 |
115 |
135 |
145 |
160 |
180 |
195 |
215 |
245 |
280 |
335 |
390 |
440 |
500 |
565 |
615 |
670 |
780 |
|
D1 |
75 |
85 |
100 |
110 |
125 |
145 |
160 |
180 |
210 |
240 |
295 |
350 |
400 |
460 |
515 |
565 |
620 |
725 |
|
|
PN16 |
D |
105 |
115 |
135 |
145 |
160 |
180 |
195 |
215 |
245 |
280 |
335 |
405 |
460 |
520 |
580 |
640 |
705 |
840 |
|
D1 |
75 |
85 |
100 |
110 |
125 |
145 |
160 |
180 |
210 |
240 |
295 |
355 |
410 |
470 |
525 |
585 |
650 |
770 |
|
|
PN25 |
D |
105 |
110 |
135 |
145 |
160 |
180 |
195 |
230 |
270 |
300 |
360 |
425 |
485 |
550 |
610 |
660 |
730 |
840 |
|
D1 |
75 |
85 |
100 |
110 |
125 |
145 |
160 |
190 |
220 |
250 |
310 |
370 |
430 |
490 |
550 |
600 |
660 |
770 |
|
|
H |
172 |
172 |
172 |
265 |
265 |
310 |
350 |
460 |
520 |
570 |
695 |
780 |
905 |
1025 |
1080 |
1030 |
1135 |
1270 |
|
|
H1 |
106 |
106 |
106 |
210 |
210 |
215 |
245 |
305 |
365 |
415 |
510 |
560 |
658 |
696 |
735 |
610 |
665 |
725 |
|
Technical Parameters
|
Size |
DN32-DN600 |
DN650-DN2000 |
|
Working pressure |
16Bar |
10Bar |
|
Shell |
24Bar |
15Bar |
|
Seal |
18Bar |
11Bar |
|
Operating Temperature |
-45°C~+150°C |
|
|
Operating Environment |
Ballast and bilge system Chemical processing Desalination plants |
|
|
Driving Method |
Hand Lever Worm Gear Electric Pneumatic |
|
Executive Standards
|
Design Standard |
EN 593, MSS SP67, API 609, BS 5155 |
|
Inspection & Test |
API 598, ISO 5208, EN 12266 |
|
End Standard |
ANSI B16.1 CL. 125LB & B16.5 CL. 150LB |
|
AS 2129 Table D & E |
|
|
BS 10 Table D & E |
|
|
DIN 2501 (PN6, PN10, PN16) |
|
|
EN 1092 (PN6, PN10, PN16) |
|
|
ISO 2531 (PN6, PN10, PN16), 7005 (PN6, PN10, PN16) |
|
|
KS B / JIS B 1511 / 2210 (5K & 10K) |
|
|
MSS SP44 CL. 150LB |
|
|
AWWA C207 |
|
|
SABS 1123 Table 1000/3 & Table 1600/3 |
|
|
Face to Face |
ISO 5752, EN 558, MSS SP67, API 609, DIN 3202 |
|
Top Flange |
ISO 5211 |
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