Titanium Helical Spring Lock Washer

What is titanium gasket(washer)?

A gasket is a mechanical seal between two objects, usually used to prevent pressure, corrosion, and leakage from the natural expansion and contraction of the pipeline between two objects.Since machined surfaces cannot be perfect, irregularities can be filled with gaskets.

Installation requirements for sealing gaskets

The choice of gasket material mainly depends on the following three factors: temperature and pressure medium

1, sealing gasket and flange sealing surface should be cleaned, there shall be no scratches, spots and other defects that affect the sealing performance of the connection.

2. The outer diameter of the sealing gasket should be smaller than the outer surface of the flange sealing surface, and the inner diameter of the sealing gasket should be slightly larger than the inner diameter of the pipeline. The difference between the two inner diameters is generally 2 times the thickness of the sealing gasket to ensure that the inner edge of the sealing gasket does not extend into the container or pipeline after pressing, so as not to hinder the flow of the fluid in the container or pipeline.

3. The preloading force of the gasket shall not exceed the design provisions, so as to avoid the loss of the springback ability of the gasket by excessive compression.

4. When sealing gasket is pressed, it is best to use torque wrench.For large bolts and high strength bolts, it is best to use a hydraulic tensioner.Tightening torque should be calculated according to the given sealing gasket compression, and the size of hydraulic tensioner oil pressure should also be determined by calculation.

5. When installing the sealing gasket, the nuts should be tightened in order.But should not twist once to reach the design value.Generally, it should be circulated at least 2 ~ 3 times so that the stress distribution of the sealing gasket is uniform.

6. For the pressure vessels and pipes of flammable and explosive media, safety tools should be used when replacing the sealing gaskets, so as not to cause sparks due to the collision between the tools and flanges or bolts, leading to fire or explosion accidents.

7. If there is leakage in the pipeline, it must be replaced or adjusted after depressurized treatment. Operation with pressure is strictly prohibited

What is the function of spring washers?

The basic function of the spring washer is to exert a force on the nut after the nut is tightened, increasing the friction between the nut and the bolt! That is, in order to prevent the loosening of fastening bolts caused by the vibration of the equipment in operation, a protective measure is added.

What is the anti-loosening principle of spring washers?

The spring washer anti-loose principle is that after the spring washer is pressed flat, the spring washer will produce a continuous elastic force, so that the threaded connection pair of nuts and bolts continues to maintain a friction force, generating resistance moment, so as to prevent the nut from loosening. At the same time, the sharp Angle at the opening of the spring washer is embedded on the surface of the bolt and the connected part respectively, so as to prevent the bolt from rotating relative to the connected part.

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