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Metal Gasket Ring Mounting Guide
- Jun 15, 2018 -

1. The metal gasket ring ring and the flange sealing surface should be cleaned and there must be no defects such as scratches or spots that affect the connection sealing performance.

2. The outer diameter of the metal gasket ring ring should be smaller than that of the flange sealing surface. The inner diameter of the sealing gasket ring should be slightly larger than the inner diameter of the pipe. The difference between the two inner diameters is generally 2 times the thickness of the gasket ring to ensure that the gasket ring is tight after the compression. The inner edge does not extend into the container or pipe so as not to interfere with the flow of fluid in the container or pipe.

3. The pre-tightening force of this product should not exceed the design regulations, so as to avoid over-compression of the sealing gasket ring and loss of resilience.

4. When the product is pressed, it is best to use a torque wrench. For large bolts and high-strength bolts, hydraulic tensioners are preferred. Tightening torque should be obtained by calculation according to the given sealing gasket ring compression. The size of the hydraulic pressure of the hydraulic tensioner should also be determined by calculation.

5. When installing this product, tighten the nuts in order. However, the design value should not be reached once. Generally, it should be circulated at least 2 or 3 times so that the stress distribution of the product is even.

6, for flammable, explosive medium pressure vessels and pipelines, when replacing this product should use safety tools, so as to avoid the tool and flange or bolt collision, resulting in sparks, resulting in fire or explosion.

7. If there is a leak in the pipeline, it must be replaced after pressure relief treatment or adjusted installation gasket ring, pressure operation is strictly prohibited.