We all know very well for the sealing circle.Because all aspects of our lives are inseparable from such a small part.I briefly give a few examples. There will be some sealing circles in the heating interface in the room, and there will be some sealing ring on our gas equipment.
Sealing ring installation
The installation method of the V -shaped sealing ring of the hydraulic press V -shaped sealing ring is generally installed on the internal or outer circle with the cutting of the rectangular., Prevent from the exudation of internal oil and liquid.In the installation of the V -type sealing ring, we must first check whether the V -shaped sealing ring on our hand is consistent with the size of the device to be installed, and then prepare for special tools, the oil, as well as the lubricating finger and some clean silk cloth.You can start installation below. First, put the clean spiral spring square in the sleeve, apply some lubricating fingers on the V -shaped circle, apply the hydraulic oil for work on the hole of the special tool for special tools.Put the V -shaped sealing ring evenly in the crusher.In this way, the hydraulic V -type sealing ring is installed.
Sealing circle standard
The first is CR, that is, chloropy rubber sealing ring. This material is very good for sunlight and weather resistance.There is no effect on dichloro -diodes and refrigerants such as dichlori methane and ammonia, and sparse acid -resistant silicon -resistant lubricating oil and other performance.The amount of inflated in some low mineral oils with low aniline, which is easy to crystallize at low temperature.This product is suitable for a variety of sealing links of various contacts, sunlight, ozone, and various flame -resistant and chemical corrosion seals.It is not very good for the erosion of strong acid, nitrate hydrocarbons, esters, chloroform and ketones, and it should be noted. It is generally not recommended for applications.The temperature used is -55 ~ 120 ° C.The second IIR, which is what we call Tiek rubber sealing rings, is particularly good and heat -resistant to the sun.In addition, there is good resistance to ozone resistance, good insulation performance, and good resistance to polar solvents such as alcohols.In this way, it can be exposed to animal and plant oils or oxides.This product is suitable for the standards for chemical drugs or vacuum equipment.Do not use oil solvents, kerosene or aromatics at the same time.The temperature range is -50 ~ 110 ° C.
Types of sealing circle
The first is a sealing ring of the a chitosocyan rubber that we call.This sealing ring has excellent performance in various different media such as hydraulic oil, water, silicon lubrication, or gasoline.It can be said that this sealing circle is currently the most widely used material. Another advantage is the lowest cost.The disadvantage is that it is not practical for some polar solvents such as ketones, nitrate hydrocarbons, and chloroform.The use temperature of this material is generally -40 ° C ~ 120 ° C.The second is HNBR. We say that this material is a sealing ring of hydrogenated chlorylocyanum rubber.In terms of advantages, the corrosion of this material is very excellent.In addition, their oxygen resistance or sunshine resistance and oil resistance are relatively excellent.The abrasion of this material is better than the chloricytocyan rubber.In terms of use, this material has performed well in washing machinery and new ring refrigeration systems.The disadvantage is that it is not suitable for solvents such as alcohol, ester, and aromatic clan.The general use temperature is at -40 ° C ~ 150 ° C.
Sealing ring specification model
1. The size of the grooves of imported O -type circles is super poor, especially when the depth size is too large, the compression deformation capacity is insufficient after the installation of the imported O -type ring, which affects the sealing ability.Generally, the compressed deformation after installation of the imported O -type circles should be between 18%and 22%. When the cross -section size is large, the relative deformation is small, and the compression and relative deformation of the section size is large.
2. The nominal size of the imported O -type circle is too different from the actual installation size. It forms an O -shaped ring working in the condition that the section size is reduced after stretching, resulting in insufficient compression deformation and leakage.
3. When the sealing circle model specifications are imported, the imported O -type ring is leaked because the imported imported from the cover has no smooth chafing or upside, and the imported O -type circle is scratched.

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