Precautions for installation and use of metal spiral wound gasket

Metal spiral wound gaskets (base type) are made of high quality SUS304, SUS316 metal strips (” V “or” W “shape) and other alloy materials, and are spiral wound with graphite, asbestos, polytetrafluoroethylene, non-asbestos and other soft materials.Metal strips are fixed at the beginning and end of spot welding.

Precautions for installation and use:

1.The wound part of the gasket must be between the flange sealing surface.The width of the winding part cannot be widened at will, which will affect the compression force of the bolt and the sealing performance of the gasket.

Spiral Wound Gasket

Spiral Wound Gasket

2.It is better not to use the basic gasket on the concave and convex flange. This is because the basic gasket is under the axial compression of the flange, the inner ring of the gasket is easy to open the welding seam, resulting in the failure of the gasket.

3.Under the conditions of high temperature, cold or frequent alternating heat and cold, large vibration, strong corrosive medium, etc., the gasket for flat flange and convex flange is preferably equipped with inner ring of reasonable material.

4.Do not replace high material padding with low material gaskets.Avoid failure of gasket caused by material corrosion or other reasons.

Our company can produce 1/8″ to 56″ metal spiral wound gasket, class 150 to class 900, with materials of 316,