pneumatic, electric ball valve product introduction

ball Industrial Valves is evolved by the plug valve, ball valve opening and closing as a sphere, the use of a sphere around the axis of the stem rotate 90 degrees to complete the intention of the open and closed. Ball valve in the line first used in cutting direction, distribution, and changes in media activities, designed to V open ball valve also has outstanding traffic control function. Ball valve only demand with the operation of the rotated 90 degrees and small rolling moment can be closed tightly. Completely equivalent medium valve body cavity to supply the flow resistance is small, straight. Ball valve not only simple structure, good sealing function, and within a certain range of nominal pass after small volume, light weight, less material consumption and unit scale is small, and small drive moment, simple operation, easy to complete the rapid opening and closing, easy to operate and repair, suitable for ordinary operation such as water, solvents, acids and gas medium, and it is suitable for the operating conditions of medium, such as oxygen, hydrogen peroxide, methane and ethylene. Can so all ball valve body, also can be combined.

ball valve is available in the 50 s of this century a new type of valve. In just 30 years, is one of the fastest in the valve type in last decade. Especially in the United States, Germany, Japan, France, Italy, and west, Britain and other developed countries, the use of ball valve is very extensive, using the type and quantity continues to expand, and to high temperature and high pressure, big, high sealing, long life, excellent function and to implement a valve multi-function, its reliability and other indicators have reached a higher level, and has set up a partly replace gate valve, cut-off valve, throttle valve. It in aerospace, petrochemical industry, long distance pipeline, light industry and construction of many aspects, such as food, has been widely used. This is because, compared with other types of valve, ball valve has many outstanding advantages. Ball valve's primary features are as follows:

1 ball valve fluid resistance small, has the lowest flow resistance ( In fact is zero)

ball valve with reducing and generally not reducing channel two kinds of structure. Regardless of the structure, the flow resistance coefficient of ball valve is small. Especially so-called full flow type, that is, not reducing ball valve, because the channel diameter equal to the inner diameter pipe, part of the resistance losses as long as the conflict of equal length of pipe resistance, namely in all the valves, the ball valve minimum flow resistance. In rocket and its experimental system, the request of transporting pipeline resistance as small as possible. Reduce the resistance of the pipeline system has two paths: one is the decline in the fluid velocity, therefore demand pipe diameter and valve size, this about whammy influence efficiency of pipeline system often attack, especially for low temperature liquid hydrogen transport system is very unlucky; One was part of the reducing valve resistance, thus, ball valve natural is the best choose.

2 ball valve opening and closing switch is agile and convenient.

because the ball valve in the general case need to handle rolling 90 & deg; Completes the fully open or close the action, is very simple to complete rapid opening and closing. Can complete the quick opening and closing, opening and closing time of some structure is only 0. 05 ~ 0. 1 s to ensure that can be used for the experiment of active in the system. No impact on the rapid opening and closing valves, operation.

3 ball valve sealing function well.

now, the vast majority of ball valve seat is made of elastic materials such as the teflon, sealing pair in the composition of the metal and nonmetal materials, generally called soft seal. In general, soft sealing simple ensure sealing, and sealing surface machining accuracy and surface roughness request is not high.

4 ball valve use life is long.

because ptfe has excellent self-lubrication, less wear of conflict with the sphere, and because of sphere processing technology improvement, the roughness decreased, and then improve the use of the ball valve life. W - it is reported that the United States K - M taking experiment was carried out on the ball valve in the laboratory, switch frequency beyond 100000 times.

5 ball valve first because high reliability:

1) sphere and Industrial Valves seat of a pair of sealing pair won't attack scratches, sharp wear problems, will not get stuck when homework ( In the absence of lubricant) , therefore, can be used reliably with the corrosive medium and low boiling point liquid. ；

2) built in the stem structure, eliminates the stem under the effect of fluid pressure may be due to the packing gland to loosen and fly out of accident hidden danger;

choose anti-static, refractory ball Industrial Valves structure, is applicable to transport oil, gas, coal gas pipeline. Serum, and solid particles.

7 for in the job not stuck ( In the absence of lubricant) , therefore, can be used reliably with the corrosive medium and low boiling point liquid.

8 spherical closed can active positioning in the direction, and can be closed when the pressure difference.

9 in the earth pressure and temperature range, can complete the two-way sealed completely.

10 in the full open and full closed, the ball and seat sealing surface and the dielectric isolation, and therefore the medium high speed through the valve does not cause corrosion of seal face.

11 compact structure, light weight, can think it for low temperature medium system of the reasonable structure of the valve.

12 body symmetry, especially when welding body structure, can accept the stress from the pipe.

To that end, Shenzhen Mech Valve Trading Co., Ltd. has successfully built a solid foundation and infrastructure for water gate valve manufacturing.
With all the pros and cons of different in mind, click Mech Valve to learn more about and decide which flow control valve option is best for your case.
os gate valve flanged gate valve are used largely for cast iron gate valve such as resilient valve.