The stainless steel butterfly valve is made of precision J-shaped elastic sealing ring and three eccentric multi-layer metal hard sealing structure. It is widely used in industrial pipes such as metallurgy, electric power, petrochemical industry, water supply and drainage and municipal construction with medium temperature ≤ 425 °C. Regulate flow and load fluid use. The stainless steel butterfly valve adopts three eccentric structure. The valve seat and disc sealing surface are made of different hardness and stainless steel. It has good corrosion resistance and long service life. The valve has two-way sealing function. The product meets the national GB/T13927-92 valve pressure test. standard.
The trajectory of the stainless steel butterfly valve has both the characteristics of the gate valve and the characteristics of the ball valve, so its performance has both the advantages of the gate valve and the advantages of the ball valve. The structure of the stainless steel butterfly valve has the same points and different points compared with the track ball valve.
The sphere of the stainless steel butterfly valve is a combined butterfly. The middle part is a wedge cone with 5° slopes on each side and two spherical valves with slopes on both sides. The spherical disc and the cone are connected by a dovetail groove or a T-shaped groove, and the two can slide each other. The upper and lower limits of the spherical disc are limited by the limit ring and the adjustment pad, respectively, so that they cannot rise or fall with the wedge cone, and can only be translated or rotated with the wedge cone in a horizontal space. The lower end of the valve stem is integrally fixed with the wedge cone by a thread and a pin. The upper trapezoidal thread is engaged with the stem nut, and the rotation of the stem nut is driven by a hand wheel, a bevel gear, an electric or pneumatic device. A track pin is arranged in the middle of the valve stem, and a roller is arranged at each end of the pin. The roller can roll in the guiding groove of the bracket, and the movement track of the valve stem is restricted by the guiding groove.
1. The stainless steel butterfly valve adopts a three-eccentric sealing structure, and the valve seat and the butterfly plate have almost no wear, and have a tighter and tighter sealing function.
2. The valve body is made of stainless steel. It has the double advantages of metal hard seal and elastic seal. It has excellent sealing performance in both low temperature and high temperature conditions, and has the characteristics of corrosion resistance and long service life.
3. The sealing surface of stainless steel butterfly valve disc is made of surfacing cobalt-based hard alloy, the sealing surface is wear-resistant and has a long service life.
4. The large-size butterfly plate adopts a truss structure with high strength, large flow area and small flow resistance.
5. The valve has a two-way sealing function. It is not restricted by the flow direction of the medium during installation, and is not affected by the position of the space. It can be installed in any direction.
6. The drive unit can be installed in multiple stations (rotated 90° or 180°) for user convenience.
The knowledge of the sealing surface material of the stainless steel butterfly valve is different. The stainless steel butterfly valve is different from the general sealing butterfly valve. Therefore, the sealing method and material requirements of the metal hard sealing butterfly valve are also different. Ordinary butterfly valve, copper ring material, fixing method, grinding method should be explained. Ordinary butterfly valve, physical and chemical testing data of valve plate lining materials. The stainless steel butterfly valve shall indicate the material of the sealing surface on the valve body and the sealing surface material on the butterfly plate; their physical and chemical testing data, especially the hygienic requirements of rubber, anti-aging performance and wear resistance; usually using butyl rubber and EPDM Rubber, etc., it is forbidden to use reclaimed rubber.
More knowledge: flange butterfly valve company website http://eccentric hemisphere valve http:// self-priming sewage pump http://pneumatic butterfly valve http://pneumatic regulating valve http://
EUI EUP tools are specially for unit injector diesel injection system repair, used for Scania, Iveco, Benz Actors, Land Rover etc. These tools cover disassembly and assembly, measuring device, adaptors for different injectors etc.
EUI EUP tools meet different maintenance applications, are easy to use, and greatly improve maintenance efficiency.
Eui Eup Injector Tools,Eui Eup Injector Tools And Equipment,Eui Eup Injector Tools Kit,Injector Repair Tools
CHENGDU UNICO MACHINERY CO., LTD , https://www.injectortestbench.com