Flanged Silent Check Valve ( Non-Slam Check Valves )
1. Silent Check Valve is the valve of choice in applications where silent operation is of major concern. Its short linear stroke and spring return action automatically closes the disc at zero flow, which prevents flow reversal and water hammer.
2. Guided spring loaded disc with drop tight closure.
3. Can be used in both horizontal and vertical positions.
DESCRIPTION:
Working pressure: 1.0/1.6Mpa
Working temperature: NBR 0 °c to 80 °c ; EPDM: 10 °c to 120 °c
Flanged according to EN1092-2 PN10/16
Testing: DIN3230, API598
Medium: Fresh Water ; Seawater and all kinds of oil etc.
Material List:
NO. | Part | Meterial |
| 1 | Guide | Ductile Iron GGG40 |
| 2 | Body | Cast Iron GG25 or Ductile Iron GGG40 |
| 3 | Sleeve | PTFE |
| 4 | Spring | Stainless steel |
| 5 | Seat ring | NBR or EPDM |
| 6 | Disc | Ductile Iron GGG40 or Brass
|
PN16
DN |
D |
D1 |
D2 |
H |
b |
f |
Z |
2" |
Ø 165 |
Ø 125 |
Ø 99 |
100 |
19 |
3 |
4 - Ø 19 |
21/2" |
Ø 185 |
Ø 145 |
Ø 118 |
120 |
19 |
3 |
4 - Ø 19 |
3" |
Ø 200 |
Ø 160 |
Ø 132 |
140 |
19 |
3 |
8 - Ø 19 |
4" |
Ø 220 |
Ø 180 |
Ø 156 |
170 |
19 |
3 |
8 - Ø 19 |
5" |
Ø 250 |
Ø 210 |
Ø 184 |
200 |
19 |
3 |
8 - Ø 19 |
6" |
Ø 285 |
Ø 240 |
Ø 211 |
230 |
19 |
3 |
8 - Ø 23 |
8" |
Ø 340 |
Ø 295 |
Ø 266 |
300 |
20 |
3 |
12 - Ø 23 |
10" |
Ø 400 |
Ø 355 |
Ø 319 |
370 |
22 |
3 |
12 - Ø 28 |
12" |
Ø 455 |
Ø 410 |
Ø 370 |
410 |
24.5 |
4 |
12 - Ø 28 |
Laizhou dongsheng valve co.,Ltd is a professional valve plant, is a collection of research and development, design, the manufacture, the sale of integrated specialized company. Our main products are series of check valves, including all kinds of single disc swing check valve, double disc swing check valve, flange and threaded ball check valve, flange and wafer silent check valve, stainless steel lift check valve, diaphragm valve, ball valve and butterfly valve etc.
We hold a set of scientific and strict management system, strong technical force, advanced processing equipment and reasonable technical progress, high technology and quality technicists and workers. We have 200 employees, and our factory area is 30000 square meter. We always hold "Do to the quality of survival, to the credibility of development.", so we produce every product carefully and treat every customer sincerely. Our products are used to open and close the pipeline of oil, chemical, water, gas and food etc. Our products are exported mainly to Europe, America, Africa, Southeast Asia, the Middle East and Russia etc. Our products are praised by foreign and domestic customers.
We own good quality certificated by ISO9001 and CE. Welcome friends from home and abroad to visit us. And we look forward to having a sincere and favorable cooperation with you.
