With platform ball valve is mainly used in natural gas, liquefied petroleum gas, petroleum, petrochemical, power plant, power station, etc.Mainly used for truncated or on line in the medium, can also be used to adjust and control of the fluid.Leak proof, light weight, small volume.In practice, it has flexible switch, low loss, reduce the labor intensity of the valve repair, save maintenance funds.1, unique design, elegant appearance, convenient installation.2, high platform structure, which is connected with ISO5211 standard, can make the installation of electrical, pneumatic actuators is more professional, more easily.3, the valve stem to grinding machine processing, in order to make the assembly when the moment can reduce the electric, pneumatic valve, more flexibility;4, with a platform for ball valve body appearance with stiffeners, even in the long term to be used in corrosion medium, can avoid the body's own fault, to avoid in the engineering installation caused by the disconnect

Fixed ball valve, is a new generation of high-performance ball valve, suitable for long distance pipeline and general industrial pipeline, its strength, security, and resistance to bad environment, special consideration when the design is suitable for all kinds of corrosive and non corrosive medium.The small make up to introduce the advantages of fixed ball valve.1, sealing emergency greasing rescue: seat tightness due to medium foreign body or fire accident failure, greasing valve provides a connection to a quick note grease gun, convenient and quick to sealing grease injection to the valve seat sealing parts, reduce leakage.2, reliable stem seal and low operating torque: in addition to setting the standard of sealing ring, the packing gland is also equipped with the "O" type sealing ring, double seal to ensure the reliability of the stem seal;Adding graphite packing and sealing grease injection makes the valve stem leakage after the fire to a minimum.Sliding bearing and thrust bearin

Type of valve has a lot of, each valve has its own characteristics, you are below summarizes the operating characteristics of different valves.1, Why easy oscillation when small open of the two-seater valve work.   For single core, when the medium is away, valve stability is good;When the medium is flow closed type, the stability of the valve.Two-seater valve has two valve core, the valve core flow closed, valve core in the flow, so that when you are working in a small open degree, flow closed type of valve core is easy to cause the vibration of the valve, this is the reason why two-seat valves cannot be used for small open degree work.2, Why double seal valve cannot be used as a cut-off valve.   Two-seater valve core has the advantage of force balance structure, allow the pressure difference is big, but its disadvantage is that the two seal face not good contact at the same time, cause leakage.If it is used to cut off at artificially, mandatory, obviously the result is bad, even as it

Different cases, the ball valve types and models of choice.1) Oil, natural gas transportation director line, need to clean the pipeline, and to be buried in the ground, selection of full size, full welded ball valve structure;Buried in the ground, choose the full size welded ball valve connection or flange connection;Branch, choose flange connection, welding connection, full size or reducing valves.2) Product oil pipeline and storage equipment, use flange connection of the ball.3) City of coal gas and natural gas pipelines, selection of flange connection and internal thread connection of floating ball valves.4) Metallurgical system on the oxygen in the pipeline system, appropriate chooses strict degreasing process, flange connection of the fixed ball ball valve.5) The piping system and device of medium to low temperature, appropriate chooses and cryogenic ball valve bonnet.6) Refining unit of catalytic cracking unit of piping system, can choose lifting lever type ball valve.7) Chemical

All welded ball valve in the welding process will produce about body and body seat with location in the size of the deformation, in order to prevent welding deformation, so the welding process should take effective preventive measures, a total of 5 points, specific as follows:1,Full welded ball valve welding should be used when the high energy source of heat.2,Choose reasonable technological parameters and groove form and the low energy input.3, Restrictions, and narrow welding heating area, forced cooling water or copper plate weldments.4, Selection of fine wire, low speed, control temperature in each layer between 50 ~ 80 ℃.5, Reasonable arrangement of assembling and welding sequence.The above is all welded ball valve several effective methods to welding deformation, hoping to bring help to you.

Stainless steel ball valve is a commonly used valve instrument, mainly used to cut, distribution and change the direction of the flow of media, with a simple structure, small size, light weight, small fluid resistance, convenient maintenance and so on. Stainless steel ball valve in the use of the need for a certain maintenance, you can ensure the normal operation of the stainless steel ball valve. So how to maintain the stainless steel ball valve, today's small make up to introduce the stainless steel ball valve maintenance method.Maintenance method of stainless steel ball valve:First: after the rough finished product, after pickling, must be washed clean, if there is sand hole or perforation, should use the argon arc welding to the gas protection welding. And then polished, and then solid fusion processing;Second: finished products, processing pressure after the completion of. Should be washed with water to join the anti rust powder.Third: in the transport process as far as possible t

Diesel fuel except for precision parts of early wear, resulting in power drop, exhaust smoke and fuel consumption increase, the most prone to failure has two kinds: a kind is due to the fuel injection pump is not installed properly, resulting in failure, the other is does not have the correct use of machine malfunction.Malfunction caused by improper installation of fuel injection pump(1) key installsFuel injection pump for use the flange plate connection of, when the oil timing gear and fuel supply advance angle automatically adjust device and fuel injection pump cam shaft woodruff key installation position is not correct, fuel is lost quasi then occurs. The engine is difficult to start, smoking, high water temperature fault phenomenon. If the arc hole on the flange plate can not be adjusted, it is necessary to remove the fuel injection pump to re install. Remove the rear can be observed clearly on the indentation key.(2) 180 degrees passive complexWhen the fuel injection pump with cro

Now the Internet, cloud computing, data, and other things in every industry in almost all modern manufacturing and combination, online transactions continue to surge and industry in the development of E-business has also been greatly promoted. However, the welding processing industry is an important part of the modern manufacturing industry, the transformation is also accelerating in the process, and the integration of the Internet is also accelerating the speed. In recent years, the manufacturing industry concentration degree is low, small scale of production, a lot of products a high degree of similarity, technological innovation weak, renewal speed problem is welding processing industry faces serious problems, welding processing industry had to carry out industrial restructuring, in this context, "welding" mobile vertical search app arises at the historic moment.Welding processing industry, the traditional marketing mode will be "welding processing" mobile vertical search app change

In addition to the iron to be used in many industries, but the separator equipment should be how to choose?Some things to consider the factors in choice except iron include: is conveyor belt conveyor, belt speed, bandwidth, angle, characteristics of grain size and the nature of the material humidity, properties, thickness, grain size, iron in the material contained in the weight, a ferromagnetic material, in addition to iron requirements, use of the environment (temperature, humidity, dust, corrosion of etc.), the machine itself, machine installation selected location etc..When the iron content is more in the material, continuously and automatically except electromagnetic iron separator is the best choice. When the iron in the material in less content and manual unloading of iron suspension type electromagnetic iron remover, permanent magnetic separator is the best choice. When the ferromagnetic material in the material content, especially small, metal detector and strong magnetic self

Ball valve with pneumatic actuator is pneumatic ball valve, because the execution speed is relatively fast, 0.05 seconds / time is the fastest speed can reach, so the gas moving fast shut-off valve is pneumatic ball valve's nickname, usually equipped with various accessories in the gas valve use, such as solenoid valves, air FRL limit switch, positioners, control box, can make local control and remote centralized control is easy to implement, the switch of the valve in the control room can control directly, do not need to run to the scene or at high altitudes and the danger zone to manual control, so that the human resources and time and safety of also has the greatly improved.The pneumatic ball valve is evolved from the plug valve. Both have the same rotation of 90 degrees, the difference is that the body of the plug valve presents a ball shape, a circular through hole or channel through its axis. The ratio of the spherical surface and the channel port should be such that when the bal