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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 |