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What is the internal tooth washer outer tooth washer?

- Jul 18, 2018 -

The gasket is generally processed into a concentric groove on the two sides of the metal stainless steel flat gasket by a precision lathe. According to different media, flexible graphite, PTFE, non-asbestos board or some other soft metal may be selected and pasted on the gasket. surface. The tooth-shaped combination pad is the first gasket under the low pre-tightening force. The soft surface sealing layer avoids the direct contact of metal to metal, and can be reliably and tightly combined to protect the metal flange from damage. Even under extremely high loads.

The structure of the gasket is divided into two basic types depending on the sealing surface of the flange:

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1. Toothed pad with positioning ring for flat flange

2. Toothed pad without locating ring for bump flange.

The serrated washer is used as a spring on the small part, and its size is matched with the fastening screw of the three-dimensional sheet metal stamping part, and the self-tapping screw is about the same size.

The internal serrated lock washer is used for the spring of the small part, and its size is matched with the fastening screw of the three-dimensional sheet metal stamping part. The size of the uterine thread screw is similar. The serrated washer is mainly used for the loosening of the bolt.

A part used for bolt head or nut locking. External tooth washer products are widely used in shipbuilding, automobile manufacturing, mechanical equipment, medical, chemical machinery, railway, power station, construction engineering, electromechanical equipment installation, instrumentation, chassis cabinet. , furniture, electronics, electrical appliances, etc.

Applications:

The tooth-shaped combination pad is the first gasket under the low pre-tightening force. The soft surface sealing layer avoids the direct contact of metal to metal, and can be reliably and tightly combined to protect the metal flange from damage. Even under extremely high loads. The tooth-shaped combination pad is especially suitable for high temperature, high pressure and alternating working conditions. It is an ideal substitute for traditional metal-clad gaskets in the flange joints of heat exchangers, vessels and reactors.


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