The standard thickness of the metallic strip is 0.2 mm.
Filler
Filler is normally used for thickness from 0.5 mm to 0.6 mm.
Centering ring
The centering ring does not come into direct contact with contained fluid. It is normally made of carbon steel and electro plated or painted to avoid corrosion. Other materials are available on request.
Inner ring
Inner ring is used to avoid excessive compression due to high seating stress in high-pressure service and it is also used to reduce turbulence in the flange area. It is normally made of the same material as the gasket metallic srtip.
Gasket Selection
Style CG - Utilizes an external ring which accurately centers gasket on flange face, provides additional radial strength to prevent gasket blow-out and acts as a compression stop. A general purpose gasket suitable for use with flat face and raised face flanges up to and inclusive of class 2500. See note at bottom of page 8 for inner ring requirements.
Style CGI - A Style CG gasket fitted with internal ring which gives an additional compression limiting stop and provides heat and corrosion barrier protecting gasket windings and preventing flange erosion. Suitable for use with flat face and raised face flanges. See note at bottom of page 8 for inner ring requirements.
Style R - Basic construction type. Inner and outer diameters are reinforced with several plies of metal without filler to give greater stability and better compression and sealing characteristics. Suitable for tongue and groove or male and female or grooved to flat face flange assemblies.
Style RIR - Solid inner metal ring acts as a compression stop and fills the annular space between flange bore and the inside diameter of the gasket. Designed to prevent accumulation of solids, reduce turbulent flow of process fluids and minimize erosion at flange faces. Suitable for male and female pipe flanges
Our Advantages
Fast delivery
We put our customers' interests in the first place and items go to production once ordered.
Lower price
we manufacture the productions, no middlemen.
High quanlity
Rilson Spiral Wound Gaskets are Made by imported high quality graphite material with low impurity content, no out of sharp issue under long time high temperature.
Controlling the quality of each product
Rilson will fully inspect the completed productions if customers asked.
Application
Working Shop
Technical Benefits
Metallic winding suited for cyclic loading
Outer ring center gasket
Inner/outer ring provides additional blow-out strength
Inner/outer ring provides a compression stop
Prevents flange erosion
Prevents inward buckling
Reduces turbulent flow
Recommended for high pressure/temperature applications
