Cryogenic valves are used to control the flow of fluid through piping. They are often called "cryo" valves because they operate at shallow temperatures below -100°C (-212°F), which allows for greater control over the system's operation.
They are relatively inexpensive compared to other types. They require no special tools to install. But if in case you are not cautious, they can be hazardous. This is because they can leak liquid nitrogen into the atmosphere and thus pose an inhalation hazard. On the other hand, they can precisely control fluid flow through the pipeline by using a valve sensitive enough to detect small amounts of pressure on its surface. And there are no disadvantages associated with this type of valve if it is used
- Suitable for low-temperature scenarios below -100ºC, such as liquid nitrogen transportation, etc.
- Reduced maintenance.
- Reduced installation costs.
- Improved efficiency, energy, and emissions reduction.
- Reduced noise and vibration levels in the compressor room can be a problem for some installations.
Check valves are very flow-sensitive, which means they open and close based on the flow of the line fluid. The interior disc enables which helps to flow forward, allowing the valve to open. Based on the design, the disc starts shutting the valve when forward flow diminishes or reverses.
Check valves are very flow-sensitive, which means they open and close based on the flow of the line fluid. The interior disc enables which helps to flow forward, allowing the valve to open. Based on the design, the disc starts shutting the valve when forward flow diminishes or reverses. The body, seat, disc, and cover are usually the only parts that need to be assembled. Other components may include a stem, hinge pin, disc arm, spring, ball, elastomer, and bearings, depending on the design.
In pipes and similar devices and equipment, check valves are generally used to prevent a reverse flow by allowing materials or fluids to flow in only one direction. Despite their various forms, sizes, and functions, these valves generally operate based on the same principle.
The primary components of a check valve include the Body,Body Seats,Gasket,Cover Plate,Hinge,Nuts,Washer.
| Type 05411 - Standard design |
Technical data |
| Nominal size |
DN |
10 |
20 |
32 |
40 |
50 |
| Dimension code |
.X. |
100 |
200 |
320 |
400 |
500 |
| Face-to-face dimension |
FF |
60 |
85 |
115 |
140 |
160 |
| Height |
H |
71 |
72 |
87 |
95 |
95 |
| Union thread |
GW |
M26x1.5 |
M40x2.0 |
M55x2.0 |
M65x2.0 |
M78x2.0 |
| Thread length |
b |
7 |
11 |
14 |
17 |
20 |
| Weight |
ca. kg |
0.7 |
1.3 |
2.4 |
3.9 |
5.7 |
| Kvs-Value |
m³/h |
2.2 |
6.7 |
12.1 |
22.6 |
37.1 |
| Cv-Value |
gal/min |
2.6 |
7.8 |
14.1 |
26.3 |
43.2 |
){kind=link}