Silent check valve is suitable for fire protection and heating system. It can be installed at the exit of pump in case of back flow of medium and the damage to pump caused by water hammer.
Inner channel of silent check valve adopts streamline, having less pressure losing. Disc has short stroke. The valve can close rapidly when pump stopping, avoid giant water hammer and forming silence.
Materials
Components | Materials |
Body | Cast iron, nodular cast iron, carbon steel |
Baffle | Cast iron, nodular cast iron, carbon steel |
Base | Bronze, chromium stainless steel |
Disc | Bronze, chromium stainless steel |
Shaft | Bronze, chromium stainless steel |
Spring | Stainless steel |
Dimensions
Model | Nominal Diameter | D1 | D2 | D3 | N-ΦD | L | ||||
1.0MPa | 1.6 MPa | 1.0MPa | 1.6 MPa | 1.0MPa | 1.6 MPa | 1.0MPa | 1.6 MPa | |||
CVKR-0300 | DN300 | 370 | 400 | 410 | 460 | 12-13 | 12-28 | 181 | ||
CVKR-0350 | DN350 | 429 | 460 | 470 | 520 | 16-23 | 16-28 | 184 | ||
CVKR-0400 | DN400 | 480 | 515 | 525 | 580 | 16-28 | 16-31 | 191 | ||
CVKR-0450 | DN450 | 530 | 565 | 585 | 640 | 20-28 | 20-31 | 203 | ||
CVKR-0500 | DN500 | 582 | 620 | 650 | 715 | 20-28 | 20-34 | 219 | ||
CVKR-0600 | DN600 | 682 | 725 | 770 | 810 | 840 | 20-31 | 20-37 | 222 | |
CVKR-0700 | DN700 | 794 | 840 | 840 | 895 | 910 | 24-31 | 24-37 | 280 | |
CVKR-0800 | DN800 | 901 | 950 | 950 | 1015 | 1025 | 24-34 | 24-40 | 356 | |
CVKR-0900 | DN900 | 1001 | 1050 | 1050 | 1125 | 1125 | 28-40 | 28-40 | 368 | |
CVKR-1000 | DN1000 | 1112 | 1160 | 1170 | 1230 | 1255 | 28-43 | 28-43 | 432 | |
CVKR-1200 | DN1200 |
| 1380 | 1390 | 1455 | 1485 | 32-49 | 32-49 | 524 | |
Steel Swing Check Valve
DIN 3356 Swing Flanged Check Valve, PN1.6, 2.5, 4.0
Hydraulic Check Valve
