Valve island, it simplifies the hardware structure of the pneumatic system interface fundamentally

With the widespread use of pneumatic technology , a machine often requires a lot of solenoid valves, valves because each requires a separate connection cables and piping , and therefore how to reduce the connecting cables and piping becomes a problem can not be ignored , integration of the manifold installation usually can not meet the request. Thus , a company that pioneered the invention of a new generation of integrated intelligent control of electrical components - valve island , it  Valve manifolds  the hardware structure of the pneumatic system interface , improve system reliability , and improve the functionality of the system . While the advent of the first generation of valve island dating back more than 20 years, but it is very limited for the study of domestic valve island , the domestic  Instrument valve manifolds  of pneumatic barely launched mature valve island products , electrical foreign products than one the modular design of the design or there is a great distance. At the same time , the valve island products are increasingly recognized by the majority of users , to get more and more market share, as early as 1991, the company launched a valve island , its sales had reached hundreds of thousands of units. The domestic market has been dependent on imports of the product valve island , because of its high price , many SMBs are at arm's length on the valve island to make sales in the domestic pneumatic valve terminal market share is very small .

Ball is the advent of the 1950s a new type of valve, the valve has become common

Ball is the advent of the 1950s a new type of valve , has now become a common valve, which is widely used in the aerospace , petroleum, chemical , long- distance pipelines , light industry, food and other aspects , advantages in the high-pressure , small- diameter aspect more prominent its main features are as follows : 1 ) small  Instrument valve manifolds  , high flow capacity, the full-flow type indented diameter valve, local resistance is almost identical to the same length of pipe friction ; 2 ) good sealing and long service life . high reliability ; 3 ) switch quickly and easily ; 4 ) self-cleaning , suitable for handling viscous fluids,  Valve manifolds  solids pressure valve design in addition to a common problem with other valves outside , there are two difficulties to be resolved. : a long life is guaranteed under the sealing performance ; another is to minimize operating torque structure and working principle , the sphere of the sphere of support by way of support way valve can be fixed into floating ball valve and ball valve floating ball . the main advantage of valve is simple in structure, easy to manufacture, low cost , reliable, but at higher pressure, operating torque is great. while fixed ball valve job, valve before the fluid pressure generated by the force on the ball all the transfer to the bearing seat does not put too much pressure. torque fixed ball valve is small, small seat deformation , stable sealing performance.

Hot runner injection molding machine can be viewed as an extension of the injection mold part

Hot runner injection molding machine can be viewed as an extension of a portion of the injection mold . It connects the nozzle and the mold cavity injection molding machines , injection molding machine to transport molten plastic into the cavity inside . Different from the traditional cold runner , it has its own heating system or  Instrument valve manifolds  , thus maintaining the flow passage times during the molding of the plastic in a molten state . In the mold opening the mold, the plastic melt flow is not solidified waste removed and remain in the flow path of the melt can be injected into the next injection mold cavity , to improve the material utilization . Hot runner injection molding technology is a revolution in technology , injection molding technology is an important development direction. Molding hot runner injection mold industrial development as a cutting-edge technology , is currently dominated by a small number of famous  Valve manifolds  and American runner company has developed and commercialized . This technology in the country is still in the gradual promotion phase, good prospects , the potential market is large, hot runner technology development and application is imperative. Carried out on the theory and design of hot runner technology point of exploration, undoubtedly contributed to the popularity of hot runner technology in China and faster application development in order to shorten the runner with foreign advanced level of technology gap. Hot runner system to ensure thermal equilibrium state is one of the key technologies of hot runner .

Valve gate hot runner injection mold has many advantages

Valve gate hot runner injection mold has many advantages. When the resin melt viscosity is low, avoid drooling phenomenon; higher temperature can be reduced when drawing phenomenon. Spool into the front gate and cavity flush products basically without leaving traces of the gate. Valve gate can be opened and closed as required to  Compression fitting  the feeding time, broaden the range of processing, reduce internal stress of plastic parts. Reduce stress cracking and warpage, increase the dimensional stability of plastic parts. Further, gate valve before opening the valve can be subjected to the pre-injection machine barrel pressure,  Valve manifolds  of the plastic produced, the moment when the gate is open, the rapid expansion of the volume of the pre-compression, greatly shorten the filling time shorten the cycle. Because the valve gate has so many advantages, it is widely adopted.

Valve gate hot runner injection mold has many advantages

Valve gate hot runner injection mold has many advantages. When the resin melt viscosity is low, avoid drooling phenomenon; higher temperature can be reduced when drawing phenomenon. Spool into the front gate and cavity flush products basically without leaving traces of the gate. Valve gate can be opened and closed as required to  Instrument valve manifolds  the feeding time, broaden the range of processing, reduce internal stress of plastic parts. Reduce stress cracking and warpage, increase the dimensional stability of plastic parts. Further, gate valve before opening the valve can be subjected to the pre-injection machine barrel pressure,  Valve manifolds  of the plastic produced, the moment when the gate is open, the rapid expansion of the volume of the pre-compression, greatly shorten the filling time shorten the cycle. Because the valve gate has so many advantages, it is widely adopted.

Valve gate hot runner injection mold has many advantages

Valve gate hot runner injection mold has many advantages. When the resin melt viscosity is low, avoid drooling phenomenon; higher temperature can be reduced when drawing phenomenon. Spool into the front gate and cavity flush products basically without leaving traces of the gate. Valve gate can be opened and closed as required to  Instrument valve manifolds  the feeding time, broaden the range of processing, reduce internal stress of plastic parts. Reduce stress cracking and warpage, increase the dimensional stability of plastic parts. Further, gate valve before opening the valve can be subjected to the pre-injection machine barrel pressure,  Valve manifolds  of the plastic produced, the moment when the gate is open, the rapid expansion of the volume of the pre-compression, greatly shorten the filling time shorten the cycle. Because the valve gate has so many advantages, it is widely adopted.

The key is the hot runner system applications heating temperature control technology

The key is the hot runner system applications heating thermostat technology, sprue, runner and hot nozzle head isothermal particularly demanding, requiring high precision temperature control. The ideal temperature is hot runner system injection molding machine injection by the melt temperature consistent, that does not melt with the heat exchange hot runner system, hot runner injection system just to maintain the melt temperature. However, the general gate hot runner mold and hot runner nozzle from the mold cavity closer, still can not be thermally insulated to avoid heat loss, so that the manifold plate larger temperature difference  Instrument valve manifolds  ends of the gating system, it is difficult to maintain uniform temperature, to injection molding adversely affected. Heat pipe is a very effective thermal conductivity of the super heat-conducting element,   Valve manifolds  of more than several hundred times the copper even thousands of times. It can be a slight reaction temperature range, the automatic adjustment of the temperature distribution in the longitudinal direction, rapidly transfer heat, is often considered isothermal components. If the heat pipe technology and hot runner technology, undoubtedly can make hot runner system applications greatly boost.

Expansion valve is widely used antibacterial out a whole new vista of development

Origin of the valve as a fluid delivery system control unit as far away as 4000 years ago, first appeared in China , when the valve is an original cork valve , it is used in transporting salt water bamboo pipeline. Since then, with the development of  Trunnion ball valve  to be applied to the valve of the most traditional , ancient, heavy industry - the fermentation industry , the steam , the medium switching, in order to improve people 's working conditions, reduce labor intensity. With excellent brewing Maotai , fen technology in the world famous. With the development , technological advances fermentation technology applications continue to get the extension and expansion of fermented products , more and more  Instrumentation ball valve from the simple fermentation brewing industry extends to the medical and health industry, pharmaceutical antibiotics , hydrocortisone and prednisone and other chemical medicines , antibacterial valve to expand out an  Valve manifolds application of new development world. With large quantities of medicines , modernization and automation of industrial production, are increasingly exposed valve manufacturing technology of antibacterial drugs and pharmaceutical production process requirements of non-adaptive and gaps. Pharmaceutical industry than it made ​​the request of the fermentation brewing industry more scientific and rational , higher, better food and pharmaceutical industries operate GMP requirements .

Valve pipe before there media, such as improper operation will cause pump impeller Rewind

Reducing structural characteristics of the design check valve check valve is to rely on the media selected energy afloat turned off automatically when backflow valve. Petrochemical  Valve manifolds  the installation of the pump outlet check valve, the past is the main and standby pumps were equipped with a check valve, are installed in horizontal pipelines, far away from the pump, check there before the pipeline medium, such as improper operation, will cause pump impeller reversed. According to  High pressure ball valve  & Chemical Corporation, the industry standard requirements, each pump check valve must be installed, and require as close to the pump, mounted on the front of the pump outlet valve. Click here to claim  Compression fitting , structure, length is too long, resulting in the pump outlet valve height is too high, causing inconvenience to the operation and maintenance; simultaneously swing check valve is easy to produce water hammer pressure drop Japanese have not any position installation disadvantages. To reduce the height of the outlet valve in the structure, so preventing water hammer, lower pressure drop, with the domestic pump characteristics and process requirements, the development of a new type of valve, the valve diameter.

Swing check valve and nozzle check valve, two identical pump conditions

Select the correct meaning and principles of the check valve in the hydraulic system pump , check valve plays a very important role, but it also brings a lot of trouble . Central power plants such as the UK , 16% of accidents are caused by a non-return valve which stops unexpectedly leaving the pump check valve closed water hammer accident rate is highest. Such water hammer strength not only by the impact of the entire hydraulic system , but also by the characteristics of the check valve itself . Two  High pressure ball valve  parallel springs station system that they were installed at the pump outlet DN 600 swing check valve and nozzle check valves , two pumps  Valve manifolds  are identical, while three parallel pumps have a when the pump stops unexpectedly , two kinds were measured downstream of the check valve of the water hammer pressure variation parameter , as shown in Figure 2 . Figure 2 curves show the characteristics of the water valve itself has a great  Check valve  of impact, therefore, of a particular line , the correct choice of the pump station valve is particularly important. The selection of the ideal valve should follow the following principles : ( 1 ) check valve must have the ability to resist corrosion pumped medium ; ( 2 ) check valve nominal pressure with the working system to match ; ( 3 ) check valve fully open resistance losses must meet the technical design requirements, normal working hours, should be able to ensure full ;