Summary
The HC42X/DRVZ silent check valve is composed of parts such as valve body, valve seat, guide body, valve disc, bearing shell, and spring. The internal flow channel adopts a streamlined design, with minimal pressure loss, short valve disc opening and closing stroke, and short pump stop opening and closing stroke. When the pump is stopped, it can be quickly closed to prevent huge water hammer sound and form a silent effect. Mainly used for water supply, drainage, fire protection, and HVAC systems, it can be installed at the outlet of the water pump to prevent medium back flow and water hammer damage to the pump.
Main technical parameter:
Model |
DRVZ/T-10 |
DRVZ/T-16 |
DRVZ/T-25Q |
|
Nominal pressure |
PN1.0MPa |
PN1.5MPa |
PN2.5MPa |
|
Nominal diameter |
DN50～DN300(mm) |
|
Maximum working pressure |
1.0MPa |
1.6MPa |
2.5MPa |
|
Sealing test pressure |
1.1MPa |
1.76MPa |
2.75MPa |
|
Shell test pressure service |
1.5MPa |
2.4MPa |
3.75MPa |
Main parts:
Parts name |
Material |
|
Valve body,guide body |
Gray cast iron, ductile iron, cast steel |
|
Valve seat, bearing, disc, shaft |
Bronze or chromium stainless steel |
|
Spring |
Stainless steel |
Main connection size:
Nominal diameter (mm) |
L(mm) |
|
50 |
120 |
|
65 |
150 |
|
80 |
180 |
|
100 |
240 |
|
125 |
300 |
|
150 |
350 |
|
200 |
450 |
|
250 |
500 |
|
300 |
550 |
|
350 |
575 |
|
400 |
600 |
|
450 |
650 |
|
500 |
700 | |
