Let's look at the copper lock valve has three sealing parts

Release time:

2023-01-09

Let's look at the copper lock valve has three sealing parts

The compressive strength characteristics of the copper valve refer to the material pressure level borne by the copper valve. The copper valve is a mechanical part that can withstand the pressure of the internal structure, so the copper valve must have sufficient strength and stiffness to ensure that it will not crack or change shape for a long time. The sealing characteristics of the copper valve refer to the ability of each sealing part of the copper valve to avoid material leakage. This is an important technical performance index of copper valve.

The copper lock valve has three sealing parts: the opening and closing components contact the middle of the two large protruding surfaces of the high pressure gate valve; Matching of filler with stem and sleeve joint; The oil circuit plate and the single flow valve are connected in the middle. The previous leak was called a gas leak, which is commonly referred to as an improper shutdown. This may affect the copper valve disconnect medium level. For the stop valve, the internal structure should not be leaked. The latter two leaks are called external leaks, and substances leak from the internal structure of the valve to the outside of the valve. Very serious leaks can also cause economic losses, damage the environment and cause accidents. For flammable, flammable, explosive, hazardous or radioactive materials, do not leak.

Therefore, copper valves must have reliable sealing characteristics. After the material passes through the copper valve, there will be flow resistance (pressure difference of the copper valve), that is, the copper valve has a certain friction resistance to the flow of the medium, which will consume a certain amount of kinetic energy to get rid of the friction resistance of the copper valve. From the perspective of environmental protection and energy saving, when designing and manufacturing copper valves, the friction resistance of copper valves to flowing media should be reduced as much as possible. Opening and closing forces and opening and closing torques refer to the increased force or torque required to open or close the copper valve. When the copper valve is closed, a certain specific sealing pressure is generated between the opening and closing of the prefabricated member and the two sealing surfaces of the hair holder.

At the same time, get rid of the problem of seat and filler, seat and nut screw and its valve end support frame. As with other friction parts, thus increasing a certain closing force and closing torque. In the opening and closing of the copper valve, the required opening and closing force and the opening and closing torque will change. In the immediate aftermath of cancellation. When planning and manufacturing copper valves, they should be diligent to reduce their closing force and closing torque.

Selection criteria for magnetic locking valves

1, steam boiler lock valve, generally choose to open full open spring safety valve 0490 series products;

2, liquid material valve, generally use full open spring safety valve 0485 series products;

3, gas or other gas medium valve, generally use closed fully open spring safety valve;

4, compressed natural gas vehicle tank car or compressed natural gas railway tank car valve, generally use full open inner window valve;

5, oil well inlet and outlet valve, generally use pilot safety valve;

6, steam power generation machine equipment high pressure bypass valve, generally selected with safety and operation two-way function of pilot safety valve

7, if the material has corrosion, with magnetic locking valve should be selected metal bellows valve, to avoid key parts due to material erosion and ineffective.

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