CVWR type wafer silent check valve adopts fluid-type design, with a smaller head loss; the internal spring can accelerate the closure, to achieve silent effect; metal to metal ensures the reliability of sealing; the install space is small. CVWR wafer silent check valve can be installed on the pump outlet, avoiding water hammer, water hammer noise and destructive impact, to achieve the purpose of preventing reflux and protecting equipments. The valve has been widely used in water supply and drainage, fire protection, construction, HVAC, industrial systems.
Specifications
| Nominal Diameter |
DN 40 - 250 mm |
| Nominal Pressure |
1.0 / 1.6 MPa |
| Working Pressure |
-10 °C - 80 °C |
| Sealing Test |
1.1 times of Nominal Pressure |
| Shell Test |
1.5 times of Nominal Pressure |
Materials
| No. |
Part Name |
Material |
| 1 |
Body |
GGG 25 / GGG 40 |
| 2 |
Disc |
Bronze |
| 3 |
Spring |
SUS 316 |
| 4 |
Seat |
Bronze |
Dimensions
| Type |
Nominal Diameter DN |
L |
D |
| CVWR-0040 |
40 |
45 |
90 |
| CVWR-0050 |
50 |
55 |
105 |
| CVWR-0065 |
65 |
70 |
125 |
| CVWR-0080 |
80 |
75 |
140 |
| CVWR-0100 |
100 |
95 |
160 |
| CVWR-0125 |
125 |
115 |
195 |
| CVWR-0150 |
150 |
135 |
215 |
| CVWR-0200 |
200 |
160 |
270 |
| CVWR-0250 |
250 |
200 |
325 |
