Deep well pump operation rules

Deep well pump valve movement in addition to the vertical linear motion, but also accompanied by two kinds of rotary motion. When the movement speed of the plunger is small, the valve ball rotates up and down around the horizontal circumference. When the movement speed of the plunger is large, the valve ball autonomously circulates around the vertical circumference and revolves around the hole center hole of the valve seat. Its rotational angular velocity is related to the movement speed of the plunger, and the greater the plunger velocity is, the larger the angular velocity of the valve ball is. The special movement of the valve ball is mainly related to the particularity of the ball valve seat structure and the fluid impact. Deep well pump valve is a spherical valve, when the fluid around it activities, will occur in the rear of the detachment of the detachment phenomenon, while generating a transverse motor. Because of the symmetry of the valve ball, this lateral force of motion will move around the equator of the valve ball in a repetitive motion so that the valve ball does not always lie on the valve bore hole axis. But deviate from a space and close to the corners of the seat rotation, this is the phenomenon of revolution. Fluctuations in the fluid activity and deviation of the valve ball cause the fluid to disagree with the error of the valve ball. It is said that the valve ball will have a certain degree of torsion so that the lateral force does not act on the ball center. But in the horizontal plane there is a certain degree of eccentricity, so that the ball in the ball there is a scroll, this phenomenon is called autobiographical phenomenon.

Door Viewers

The door observer is a small optical instrument installed on the door of a residence, which is convenient for residents to observe the outdoor situation. Has become a necessity for home safety.
It is composed of a concave lens (objective lens) and a convex lens. The focal length of the objective lens is extremely short, it makes the outdoor person or object into an upright and reduced virtual image, which falls just within the focus of the eyepiece, and finally a reduced upright virtual image is obtained, which is exactly at the clear viewing distance of the human eye. Nearby, you can see the situation outside the door clearly.

To ensure the quality of this Reliable Solid Brass Door Viewers we have strict quality control from material processing, polishing, assembly and packaging. Extensive experiences, mature technology and professional service allows us to meet the different needs of customers of different regions.We produce Door Hardwares of various functions and styles, fits perfectly to all kinds of frameless shower enclosures. Special requirements and sizes are available. Please just feel free to contact us if you have any question. Our team is on call for 24/7 to provide the worry-free before/after-sale service.The Door Hardware produced by our company includes door viewers, Door Hinges , Door Stoppers, Door Holders, Door Guards , door selectors, Door Hang Wheels and other series of hardware products, which can meet the installation needs of all building materials.

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