But after size shrinkage. But this kind of structure parts is more, easy bonding in the viscous media, tightly closed. A between the two gate there is spring, spring initiation to tight force, can help in ram tightly closed. Ordinary tightly closed the tilting Angle has 2 & amp; 度; 52′，3& 度; 30′，5& 度; ， 8& 度; 10, 度; And so on, mainly depends on the Angle of volume in the medium temperature. Flexible wedge gate valve gate, the structure of the unique place is a trap on the surrounding of disc ring groove, ram with proper elasticity, it possess a single ram wedge gate valve structure simple, using the advantages of reliable, and can trace the initiation elastic variant remedial initiation of deviation in the manufacturing process of tight sealing surface Angle, improve the manufacturability, is now considered by number and appropriate use. Under the condition of some certain office ( Such as fuel oil pipeline) , not allowed to see fit and use of the contraction of valve. Single ram wedge gate valve, simple structure, reliable use, but the tight sealing faces a higher degree of accuracy Angle, processing and maintenance is difficult, Marine valve easy clamping, bruises occur, the temperature changes of the wedge has the possibility is very large. Q: briefly describes the classification of the steel gate valve a: 1. According to the construction of ram can be divided into 1) Parallel gate valve: tightly closed surface and core straight line parallel to the two mutually parallel gate valve tightly closed expression. Parallel gate Industrial Valves general right and land use double gate plate structure. In wedge gate valve, and a single ram, double disc and flexible disc. Size shrink from large to small size, can make the parts required for opening and closing force corresponding decreases, and meanwhile the application scope of expansion device zero. The structure of double ram wedge gate valve is complex, use more in the medium of water and steam pipe. With this kind of structure to open and close letting apparatus, to instigate the degree of opening and closing. Ordinary office temperature, the higher the Angle should be more big, to reduce the temperature change of wedge have possibility. 2) Non-rising stem gate valve: the valve stem nut inside body, direct contact with the medium. 。 Fluid resistance loss increased. More mainly upper and lower damper used for a long period of initiation of rust easily, ram is easy to peel. In parallel in the gate valve, with thrust wedge structure for common, most often in both two gate middle have double thrust wedge, the gate valve is suitable for use in low pressure of medium and small diameter ( DN40 - 300毫米) Gate valves. Advantages of this structure is: the height of the gate valve always remain unchanged, because the installation of the space is little, suitable for use in large diameter or of the gate by the limit space. Its advantages are: low precision requirement of the tightly closed plane Angle, temperature change is not easy to actuating the phenomenon of wedge, tightly closed surface abrasion, can add gasket. 2) Wedge gate valve: tightly closed surface and core line straight into some sort of perspective, the two sealing faces closely into wedge gate valves. This structure has help to the stem of the lubricating oil, open and close degree superficial, because this is widely considered and appropriate use. Open and close the damper, the rotary valve rod was used to achieve success. 3, gate size shrink if a different channel diameter of valve body ( Tend to be the seat of size is less than the flange signatures in size) , known as the size shrink. Special use of gate valve, such as long distance oil and gas transmission pipeline with large diameter gate valves for thorough cleaning valves and piping requirements and right and land using single gate plate structure. 2. According to the construction of the valve stem gate valve can be divided into 1) Rising stem gate valve: the valve stem nut on the cover or stents, open and close the damper, with rotating stem nut to successfully implement stem up and down. This is in order to reduce pipeline resistance loss on the one hand, on the other hand is to prevent size shrink to mechanical after thorough cleaning line leads to a stumbling block. The lack of this structure is: stem turnbuckle than there is no way to lubricating oil, and directly accept medium erosion, easy to destroy. Notes to the order: The national standard) A, A: B: product name, model, nominal size medium and temperature, pressure range C: whether there is attachment, delivery time, and special requirements so that we can correct selection for you. Second, if the valve has been selected by design unit of our company model, please order according to the valves parameters directly with our sales center. Three, it is very important when you use the occasion or the environment is more complex, would you please provide design drawings and detailed parameters, our engineers experts will concentrate on review and analysis for you. We can provide you with professional solutions, including design, customization, complete, operation and service. We've been working on the valve leader in the field of industry, to provide you with the latest knowledge of the valve, the best service, best technical adviser. Thank you for visiting our website, if you have any questions, you can call us, we will be dedicated to provide you with quality services. The factory provides professional ball Industrial Valves, butterfly valve, gate valve, globe valve, check valve, relief valve, safety valve, Marine valve, oil valve, hydraulic control valve and other kinds of valves.
Shenzhen Mech Valve Trading Co., Ltd.'s products comply fully with all compatible producing regulations.
Shenzhen Mech Valve Trading Co., Ltd.’s mission is to provide high quality care and services to our members and to be profitable in the process.
Shenzhen Mech Valve Trading Co., Ltd., a manufacturer of double flanged gate valve, might emphasize less hassle or less wasted time rather than emphasizing reliability or quality.
Getting rising stem gate valve from an idea to production is a complex process. It involves significant research, time, planning and patience. But with the right information, the right resources and the right product, it's possible.
Shenzhen Mech Valve Trading Co., Ltd. provides the ideal conditions for business creation – access to cash, human capital and affordable office space, for instance – can help new ventures not only take off but also thrive.