The regulating valve is the change of the opening degree of the diaphragm by rotating the knob, and the air flow passes through the change of the aperture, so that the air is subject to the change of quantity. The utility model has more air, reduces the compression of the diaphragm, increases the hole, and has a larger volume. Downstream with the reduction of air flow. The force of the diaphragm makes the through hole smaller, reducing air flow, and excess gas can overflow the relief valve. Next Xiaobian introduced the working principle of pressure regulating valve and the function of pressure regulating valve.
Pressure regulator valve working principle
When someone uses water after the pressure regulator valve is imported, the water passes through the valve core and causes pressure loss. The pressure loss is determined by the size of the valve core opening, and the size of the valve core opening is determined by the spring force. Therefore, the pressure is controlled by adjusting the top spring of the inlet pressure regulating valve. The spool is open to control the pressure loss to obtain the desired valve pressure.
When no water is used after the inlet of the pressure regulator valve, the pressure behind the valve increases. At this time, the pressure before the valve plus the valve pressure is greater than the spring force will top up the valve core (reducing valve is in a normally open state, this When the valve fluid is completely separated from the valve fluid, the outlet pressure of the pressure regulator valve is greater than the set value, but due to the inertia, the upward movement of the diaphragm will not stop at once and it will continue to move up a little It is equivalent to that the valve cavity at the outlet becomes larger, the volume becomes larger, and the pressure of the internal liquid drops until it is exactly equal to the set pressure value at the outlet of the pressure regulating valve.
Regulator action
Pneumatic valve positioner is designed according to the principle of force balance. Its working principle is to design and work according to the principle of force balance. When the signal pressure of the bellows is increased, the lever 2 is rotated around the fulcrum, and the baffle is close to the nozzle. After the nozzle back pressure is amplified by the amplifier, it is sent to the air chamber of the membrane actuator mechanism to move the valve rod downward and drive the feedback rod. The (pendulum) rotates around the fulcrum, and the feedback cam (eccentric cam) connected to the same shaft also rotates counterclockwise. The lever 1 is rotated around the fulcrum by the roller, and the feedback spring is stretched and the spring pulls the lever 2. The instrument reaches an equilibrium state when the force acting on the bellows with the signal pressure reaches the moment balance. At this point, a certain signal pressure corresponds to a certain valve position. The above action mode is a positive action. If you want to change the action mode, just flip the cam and turn A into B direction. The so-called positive acting positioner means that the signal pressure increases and the output pressure increases. The so-called reaction positioner increases the signal pressure and decreases the output pressure. If a positive acting actuator is equipped with a reaction locator, it can achieve the action of the reaction actuator. Conversely, if a reaction actuator is equipped with a reaction locator, the positive actuator can be actuated. Related websites (drawings) Regulators are usually composed of an electric actuator or a pneumatic actuator and a valve body. There are two kinds of direct strokes: direct single-seat type and straight-through double-seat type. The latter has the characteristics of large circulation capacity, small imbalance, and stable operation, so it is generally suitable for high flow rate, high pressure drop and less leakage occasions. The corner trips mainly include: V-type electric adjustment ball valve, electric butterfly valve, ventilation control valve, eccentric butterfly valve and so on.
The difference between pressure regulator and safety valve
The pressure regulator is a valve that regulates the output pressure. The safety valve protects the valve when the pressure exceeds the rated safety pressure. The valve opens automatically if it exceeds the rated pressure. When the pressure reaches a critical value, the safety valve will vent excess pressure. Excluding the excess pressure should not be interpreted as a pressure regulating valve because the pressure regulating valve regulates the pressure, while the safety valve is a failure or pipeline failure in other places. When the pressure is over, it is safe to protect it. The safety valve cannot be used as a regulating valve, and the protection coefficient of the safety valve is set according to industrial and mining conditions. If any changes can be made according to the manufacturer's specific parameters. If all the pressure is relieved or the excess pressure is relieved at best and is called a protection valve, the regulating valve is manually and automatically controlled in various forms. If the mining conditions are strictly not recommended to use safety valves instead.
Editor's summary: The working principle of pressure regulating valve and the role of pressure regulating valve are introduced here, and we hope to be helpful to everyone. If you want to know more about yourself, you can follow the information on this site.
Siphon principle Principle of refrigeration Principle of regulating valve
Our diamond glass mosaics are impermeable, corrosion-resistant and colorproof. Suitable for indoor and outdoor use, bathroom, wall, floor. It is your best choice for decoration and renovation. Diamond-shaped mosaics not only allow you to save materials, but also make you look new.Welcome to use our product!
Here you can find the related products in Strip/Rectangle Shape Glass Mosaics, we are professional manufacturer of Rectangle Shape Glass Mosaics,Strip Shape Glass Mosaics,Mini-Brick Marble Mosaic,Glass Mosaic Wall Decor. We focused on international export product development, production and sales. We have improved quality control processes of Strip/Rectangle Shape Glass Mosaics to ensure each export qualified product.
If you want to know more about the products in Strip/Rectangle Shape Glass Mosaics, please click the product details to view parameters, models, pictures, prices and other information about Rectangle Shape Glass Mosaics,Strip Shape Glass Mosaics,Mini-Brick Marble Mosaic,Glass Mosaic Wall Decor.
Whatever you are a group or individual, we will do our best to provide you with accurate and comprehensive message about Strip/Rectangle Shape Glass Mosaics!
Mosaic Tile Backsplash,Luxury Glass Mosaic,Top-Grade Mosaic Glass,Celadon Rounded Edge Mosaics
Gong Loon Jadeite Manufacture Co.,Ltd , https://www.bluebird-mosaic.com