mute check valve
nominal diameter: dn300 ~ 600mm
nominal pressure: pn1.0 ~ 2.5mpa
suitable medium: water, oil, water, sewage
temperature: 0 ~ 80 ℃
flange standard: gb / t17241.6, gb / t9113
test standards: gb / t13927, api598
silent check valve hydraulics-based contouring for better streamlined design internal design with flow guide ensures minimum pressure loss. muting check valve installed in the pump outlet at the back of the water before the first quick closure to avoid water hammer, water hammer and broken flat impact in order to achieve the purpose of silence, prevent backflow and equipment protection. mute check valve is widely used in water supply and drainage, fire protection, hvac, industrial systems.
first, silent check valve main technical parameters
|
nominal diameter |
dn300 ~ 600mm |
|
nominal pressure |
1.0 / 1.6 / 2.5mpa |
|
operating temperature |
0 ° c -80 ° c |
|
seal test |
1.1 times the nominal pressure |
|
shell test |
1.5 times the nominal pressure |
second, quiet check valve material description
|
serial number |
part name |
material |
|
1 |
body |
gg25 |
|
2 |
valve plate |
qa19-4 |
|
3 |
bearing |
qa19-4 |
|
4 |
spring |
sys316 |
|
5 |
flow guide |
gg25 |
|
6 |
seat |
qa19-4 |
third, the main dimensions (flange drilling according to gb / tl7241.6-1998 standards)
|
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 |
|