Ductile Cast Iron Silent Check Valve
Product Details
The Silent Check Valve is a specialized non-return valve designed to protect pumping systems, pipelines, and equipment by preventing reverse flow and minimizing pressure surges, commonly known as water hammer. As a specialized type of check valve, its primary function is to prevent medium backflow, protect pumps and drive motors from reverse rotation, and avoid the discharge of container media.
The Silent Check Valve is an ideal solution for applications where low-noise operation and cost-efficiency are essential. Its compact linear travel and spring-assisted return mechanism enable the valve to close before flow reversal occurs, effectively preventing hydraulic shock and water hammer that typically result from the abrupt stoppage of reverse flow.
Its compact and robust design makes it suitable for installation in horizontal or vertical orientations and helps extend the service life of pumps and piping systems while reducing noise and vibration during operation.
QINGDAO FLUIDO excels in manufacturing this premium silent check valve, integrating exquisite craftsmanship and strict quality control to deliver unparalleled reliability and performance.
Key Features
Material Versatility
Compact & Lightweight Design
Flexible Installation
Rapid Closure & Water Hammer Prevention
Specification
|
NO. |
Part |
Material |
|
1 |
O-ring |
EPDM rubber |
|
2 |
Body |
Ductile iron GJS-500-7 (GGG-50) |
|
3 |
Seat |
Stainless steel 1.4308 (CF8), cast |
|
4 |
Disc |
Stainless steel 1.4308 (CF8), cast |
|
5 |
Spring |
Stainless steel 1.4301 |
|
6 |
Bush |
Stainless steel AISI 316 |
|
7 |
Bolt |
Stainless steel A2 |
|
8 |
Retainer ball |
Stainless steel AISI 304 |
|
9 |
Set screw |
Stainless steel A2 |
|
10 |
Stem |
Stainless steel 1.4301 |
|
11 |
O-ring |
EPDM rubber |
|
12 |
O-ring |
EPDM rubber |
|
13 |
Spacer |
Stainless steel 1.4301 |
|
14 |
Nut |
Stainless steel A2 |
|
15 |
Face ring |
Stainless steel 1.4301 |
|
16 |
Stem guide |
Ductile iron GJS-500-7 (GGG-50) |
|
17 |
O-ring |
EPDM rubber |
Dimensions
|
DN |
Flange |
L |
W |
C |
|
mm |
drilling |
mm |
mm |
mm |
|
65 |
PN10/16 |
140 |
185 |
27.5 |
|
65 |
PN25 |
140 |
185 |
27.5 |
|
80 |
PN10/16 |
152 |
200 |
35.5 |
|
80 |
PN25 |
152 |
200 |
35.5 |
|
100 |
PN10/16 |
184 |
235 |
46 |
|
100 |
PN25 |
184 |
235 |
46 |
|
125 |
PN10/16 |
216 |
270 |
51 |
|
125 |
PN25 |
216 |
270 |
51 |
|
150 |
PN10/16 |
248 |
300 |
61 |
|
150 |
PN25 |
248 |
300 |
61 |
|
200 |
PN10 |
317 |
360 |
84 |
|
200 |
PN16 |
317 |
360 |
84 |
|
200 |
PN25 |
317 |
360 |
84 |
|
250 |
PN10 |
394 |
440 |
118 |
|
250 |
PN16 |
394 |
440 |
118 |
|
250 |
PN25 |
394 |
440 |
118 |
|
300 |
PN10 |
362 |
500 |
16 |
|
300 |
PN16 |
362 |
500 |
16 |
|
300 |
PN25 |
362 |
500 |
16 |
|
350 |
PN10 |
400 |
580 |
35.5 |
|
350 |
PN16 |
400 |
580 |
35.5 |
|
350 |
PN25 |
400 |
580 |
35.5 |
|
400 |
PN10 |
448 |
635 |
50 |
|
400 |
PN16 |
448 |
635 |
50 |
|
400 |
PN25 |
448 |
635 |
50 |
|
450 |
PN10 |
477 |
640 |
9.5 |
|
450 |
PN16 |
477 |
640 |
9.5 |
|
500 |
PN10 |
525 |
715 |
8.5 |
|
500 |
PN16 |
525 |
715 |
8.5 |
|
600 |
PN10 |
611 |
840 |
27 |
|
600 |
PN16 |
611 |
840 |
27 |























