CVKR Silencing Check Valve

CVKR silencing check valve purpose

The big aperture silencing check valve uses the outline design conformed to hydraulics so as to get a better faired water path and there is an elevator design used inside it for the guarantee of minimum pressure loss. It is mounted on the outlet of the water pump and can close quickly before the water flow goes back so as to avoid the water hammer, water shock sound and destructive shock and to get the target of silencing, back-flow preventing and equipment protecting. It is used extensively for the systems of the water supply and drainage, fire-fighting, warming industries etc.

Structure of CVKR Silencing Check Valve pic 1

CVKR Silencing Check Valve Main Technical Parameter

DN DN300~600mm
PN 1.0/1.6/2.5MPa
Working temperature 0℃~80℃
Seal test 1.1times of PN
Casing test 1.5 times of PN

CVKR silencing check valve about the materal

NO Part Material
1 Body GG25
2 Valve disc QA19-4
3 Bearing QA19-4
4 Spring SUS316
5 Elevators GG25
6 Seat ring QA19-4

CVKR silencing check valve main external and connection dimensions


Type
DN
mm
D D1 D2 N-φd L
1.0MPa 1.6MPa 1.0MPa 1.6MPa 1.0MPa 1.6MPa 1.0MPa 1.6MPa
CVKR-0300 300 460 400 410 370 12-13 12-28 181
CVKR-0350 350 520 460 470 429 16-23 16-28 184
CVKR-0400 400 580 515 525 480 16-28 16-31 191
CVKR-0450 450 640 565 585 530 20-28 20-31 203
CVKR-0500 500 715 620 650 582 20-28 20-34 219
CVKR-0600 600 810 840 725 770 682 20-31 20-37 222
CVKR-0700 700 895 910 840 840 794 24-31 24-37 280
CVKR-0800 800 1015 1025 950 950 901 24-34 24-40 356
CVKR-0900 900 1125 1125 1050 1050 1001 28-40 28-40 368
CVKR-1000 1000 1230 1255 1160 1170 1112 28-43 28-43 432
CVKR-1200 1200 1455 1485 1380 1390 1328 32-49 32-49 524
Structure of CVKR Silencing Check Valve pic 2

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