The application of self-operated pressure regulating valve gate is introduced in detail

The application of self-operated pressure regulating valve gate is introduced in detail

    Self-reliant pressure regulating valve is divided into self-reliant pressure, pressure difference platform flow regulating valve three series products. Self-reliant pressure regulating valve is divided into two categories according to the pressure point position before the valve and after the valve. When the pressure point is behind the valve, it is used to regulate the pressure before the valve. When the pressure point is behind the valve, it is used to stabilize the pressure after the valve. When the valve before and after the valve pressure at the same time to introduce the actuator on both sides of the brake chamber, the independent pressure difference regulating valve can adjust the pressure stability at both ends of the regulating valve, can also be installed in the pipeline packing at both ends of the pressure difference introduced into the film actuator on both sides of the brake chamber, constitute the independent total flow regulating valve, Or use a variety of ways to complete the flow detection with self-reliant pressure difference regulating valve to complete the total flow adjustment.
Main feature
1, self-reliant pressure regulating valve without additional power energy, can be in no power and no gas in the workplace, very convenient and save resources.
2, the pressure according to the category of thin and cross between each other, high adjustment accuracy.
3, the pressure preset value can be set continuously during the running period.
4. Adjust the pressure after the valve, and the ratio between the pressure before the valve and the pressure after the valve is 10:1~10:8
5, rubber gasket type test, actuator measurement accuracy is high, sensitive action.
6, the choice of pressure balance organization, so that the valve response is rapid, control.
Dear customers,
Hello, my company is a strong technical force of high level of research and development crowd, to provide the majority of users with goods, detailed solutions and the best technical service company. The main products are nitrogen sealing valve, nitrogen sealing equipment, electric single seat control valve. The company persists in the business philosophy of sincere determination, quality and enterprising Industrial bank, and climbs to a new peak with a more firm pace to make contributions to the national automation industry. Welcome new and old customers to buy their own satisfactory products. We will serve you!
Self-reliant pressure regulating valve because no other external power sources such as switching power supply, pneumatic valve, rely on the energy of the media itself to drive, both energy saving and environmental protection, easy to use, after installation, set the pressure value can be invested since the start, so the accuracy requirements are low, and lack of switching power supply, pneumatic valve place, More and more applications have been obtained.
However, this kind of gate valve also needs proper model selection and reasonable assembly and application, in order to ensure that there are no problems after being put into operation. Model selection level needless to say, such as regulating valve is used to regulate the pressure before or after the valve pressure, the material is normal temperature or continuous high temperature, there is no corrosion, very high working pressure these, must be clear in advance, we mainly talk about installation and application related problems. Because I recently encountered a case of self-reliant pressure regulating valve application level encountered problems, very symbolic.
The gate valve is used in the compressed air pipeline. Only one or two months after its delivery, the customer reported a barrier. Go to the scene to see, a lot of steam from the regulator valve film head exhaust outlet, loud noise, momentum is shocking. Accident, obviously the vapor did not condense, directly into the film head, burned the valve disc.
Self-reliant pressure regulator for compressed air pipeline, installation must be in the middle of the actuator and pipe to add a condensation tank, do not let the vapor into the actuator film head, and the regulator must face down assembly, condensation tank to high over the film head, the first application, must be filled with water in the condensation tank and film head. Look at the installation method of the site, understand the field instrument staff, this is no problem, so what caused it people confused. Later, I carefully questioned an operator and inadvertently learned that the copper pipe joint between the condensate tank and the membrane head had been leaking intermittently since the two valves were installed and put into use. It turns out that the seepage caused the condensate tank water gradually transparent, steam into the membrane head, burned the valve disc.
It is not difficult to see that in the use of self-reliant pressure regulator on the pipeline, assembly and maintenance level must pay more attention to, in order to ensure the normal operation of the regulator, must not let the joint leakage, do not let the condensate tank less water, regular maintenance, moderate water release. In fact, not only self-reliant pressure regulating valve, is other self-reliant regulating valve, in the process of use also pay special attention to maintenance and maintenance.
In addition, if the vapor pressure is relatively high, it is more appropriate to use the piston machine actuator, and do not take the plastic film actuator, because the valve can generally accept the pressure should not exceed 0.4Mpa, though available, it is necessary to reduce the service life.