Many people don't know the difference between stud bolts and hexagonal bolts. Now let Maijin describe the difference between stud bolts and hexagonal bolts. The stud bolt is used as a cut-off material. When it is fully opened, the resistance to material operation and flow is relatively small. Stud bolts are generally suitable for applications that do not need to be opened and closed frequently, and keep the gate valve completely open or completely cancelled. Not suitable as a controller. The stud bolts can be adjusted at will except the valve disc. The other parts are the same as the globe valve. The valve disc is affected by the liquid pressure and rises from the raised surface of the high pressure gate valve. The reverse flow of the material causes the valve disc to return to the high pressure gate valve and cut off the flow. According to the scope of application, the fins can be all-metal components, or in other ways. Like the cut-off valve, the passage of the liquid through the lifting check valve is also narrow, so the pressure drop of the lifting check valve exceeds that of the rotating check valve, and the flow rate of the rotating check valve platform is less restricted. In order to make the main parameters of the output pressure of the stud bolts meet the process requirements, an adjustment mechanism must be assembled to adjust the above main parameters. The working principle of the main working content of the regulating mechanism is to change the flow area between the stud and the gate valve and the high-pressure gate valve, so as to achieve the purpose of adjusting the above parameters. The studs belonging to this type are called pressure regulating valves. Hex bolts are a type of bolts with a wider range of applications. Grade A and Grade B hexagonal bolts are used in extremely important places where assembly accuracy is strictly required, and where relatively large impact, vibration or alternating loads are accepted. Grade C hexagonal bolts are used in places where the surface is relatively rough and assembly accuracy is low. The threads of hexagonal bolts are generally coarse-threaded common threads, and fine-threaded general-threaded bolts are more suitable for locking. They are mainly used on thick-walled parts and places subject to impact, vibration or alternating loads. Generally, partial threads are also made on the bolts, and full-thread bolts are mainly used in places where very long threads are required. Bolts with holes are used in places where bolts must be locked. The hexagonal bolts with reamed holes can accurately fix the mutual parts of the connected parts, and can accept cutting and extrusion formed by lateral force.