La description
1.Cut-off effect
The important role of the valve is to cut off the effect. It is to
close (close) the fluid in the pipeline, will not make it flow, in
general, the valve of various pipelines mainly play a cut-off
role.
2. Regulating role
Another important role of the valve is to regulate the flow,
according to the working conditions or requirements to adjust the
medium flow, temperature, pressure, level and other parameters,
flow control depends on the size of the valve opening adjustment.
[electric regulating ball valve electric regulating butterfly valve
pneumatic regulating ball valve pneumatic regulating butterfly
valve]
3. Non-reverse effect
Some pipelines require medium flow in one direction and do not
allow backflow or backward banding. This requires the use of check
valves (or check valves). It is a valve that automatically opens
and closes the valve flap to prevent backflow of the medium. It is
a kind of automatic valve. Its main function is to prevent the
reverse flow of the medium, to prevent the reverse rotation of the
pump and drive motor and the release of the container medium.
4. Safety role
When the fluid pressure is too high, in order to prevent the
pressure in the high pressure vessel exceeds the pressure limit of
the vessel, an explosion may occur. Therefore, the valve that can
automatically release pressure at a certain pressure is installed
on the vessel, usually called a safety valve. For example, safety
valves are installed on boilers, compressed air tanks and some
high-pressure reactors. This valve plays a role in ensuring
safety.
5. Other functions
In addition to the above four functions, the valve also has a
number of functions, such as stabilizing the system pressure;
depressurizing the high pressure in front of the valve to a reduced
pressure, allowing the exhaust to be depressurized and discharging
contaminants from the discharge function. Samples are taken for
analysis and observation; and a portion of the fluid is returned to
the previous backflow process for reflux. There are also steering
valves (*-way valves, *-way valves, etc.) that transfer fluid to
another line.
| Pays: |
China |
| N ° de modèle: |
-
|
| Prix FOB: |
569 ~ 1565 / (Negotiable)
Obtenir le dernier prix
|
| Localité: |
China |
| Prix de commande minimale: |
569 |
| Commande minimale: |
100 Set |
| Packaging Detail: |
set |
| Heure de livraison: |
20 |
| Capacité de Fournir: |
999 |
| Payment Type: |
- |
| Groupe de produits : |
- |
