The wafer-type silent check valve features a fluid-type design with minimal head loss; an internal spring accelerates closure, achieving a silent operation; metal-to-metal construction ensures reliable sealing; and it requires minimal installation space. It can be installed at the pump outlet, preventing water hammer, water impact noise, and destructive shocks, thus preventing backflow and protecting equipment. It is widely used in water supply and drainage, fire protection, building, HVAC, and industrial systems.
Main Technical Parameters
Nominal Pressure: 1.0～1.6MPa
Nominal Diameter: 40～250mm
Applicable Media: Water and weakly corrosive fluids
Applicable Temperature: 0～80℃
Flange Standard: GB/T 17241.6 GB/T 9113
Test Standard: GB/T 13927 AP 1598
Wafer Type Silence Check Valve Size
|
DN
|
40
|
50
|
65
|
80
|
100
|
125
|
150
|
200
|
250
|
|
L
|
45
|
55
|
70
|
75
|
95
|
115
|
135
|
160
|
200
|
|
D
|
90
|
105
|
125
|
140
|
160
|
195
|
215
|
270
|
325
|
Wafer Type Silence Check Valve Factory
