The closing part of the Globe Valve is a sphere, and the center line of the Globe Valve is rotated to achieve opening and closing of a Universal Valve.
1. Friction-free opening and closing: completely solves the problem of traditional Universal Valve affecting sealing due to mutual friction between sealing surfaces;
2. Top-mounted structure: The Universal Valve installed on the pipeline can be directly inspected and repaired online, which can effectively reduce device shutdown and reduce costs. This type of Universal Valve should generally be installed horizontally in pipelines;
3. Single valve seat design. Eliminates the problem of abnormal pressure increase of the medium in the Universal Valve cavity that affects the safety of use;
4. Low torque design. The specially designed
Valve Stem only needs a small handle to open and close the Universal Valve easily;
5. Wedge sealing structure. The Universal Valve relies on the mechanical force provided by the valve stem to press the ball wedge onto the valve seat to seal, so that the sealing performance of the Universal Valve is not affected by changes in pipeline pressure difference, and the sealing performance is reliably guaranteed under various working conditions;
6.Self-cleaning structure of sealing surface. When the ball tilts away from the valve seat, the fluid in the pipeline passes 360° evenly along the ball sealing surface, which not only eliminates the local erosion of the valve seat by the high-speed fluid, but also washes away the accumulation on the sealing surface, achieving the purpose of self-cleaning. .
Globe Valve have the following advantages:
1. The fluid resistance is small, and its resistance coefficient is equal to that of a pipe section of the same length;
2. Simple structure, small size and light weight;
3. Tight and reliable. Currently, the sealing surface material of Globe Valve is made of plastic, which has good sealing performance and has been frequently used in vacuum systems;
4. Easy to operate, quick to open and close, just rotate 90° from fully open to fully closed, convenient for long-distance control;
5. Easy to maintain, the Globe Valve has a simple structure, the sealing ring is generally movable, and it is easy to disassemble and replace;
6. When fully open or fully closed, the sealing surfaces of the ball and valve seat are isolated from the medium. When the medium passes, it will not cause erosion of the sealing surface of the Universal Valve;
7. It has a wide range of applications, with diameters ranging from a few millimeters to several meters, and can be applied from high vacuum to high pressure.
The following matters should be paid attention to when installing and maintaining Globe Valve: 1. There should be a position for the valve handle to rotate; 2. It cannot be used as a throttling; 3. Globe Valve with transmission mechanisms should be installed upright.
The working principle of the Globe Valve: it relies on the rotating valve to open or block the Universal Valve. Globe Valve are easy to switch, small in size, can be made into large diameters, have reliable sealing, simple structure, and easy maintenance. The sealing surface and spherical surface are always in a closed state and are not easily eroded by the medium. They are widely used in various industries.
