These gaskets are suitable for a wide range of operating conditions and can be adapted to suit almost all applications. The sealing section is made up of a resilient “Omega” shaped steel strip and a soft sealing filler material garnering an excellent sealing.
By altering the tension, number and thickness of the windings, an infinite number of stress values can be produced ensuring a constant gasket stress at all times.
In-built resilience these gaskets are capable of excellent seal over a wide range of flange surface finish.
The combination of materials allows the gasket to seal under fluctuating temperature and pressure conditions. These gaskets are proven to be most reliable for use in difficult, critical and arduous duties.
These gaskets don’t adhere to the flange face like cut gaskets and hence reduces expensive cleaning downtime.
Style SG
The standard gasket choice for RF & FF flanges with the Outer Guide Ring and Sealing Element.
The outer ring centers the gasket within the bolt holes of the flange, provides additional radial strength to prevent gasket blow-out and acts as an over compression stop of the sealing elements.
Style SGIR
The standard gasket with an Inner Ring fitted to Style CG, providing additional compression stop that protects the sealing element from heat and corrosion. It fills the annular space between the flange bore and the inside diameter.
Designed to prevent accumulation of solids, reduce turbulent flow of process fluids and minimizes erosion of flange faces.
Inner rings are recommended on all gaskets NPS24” class 900#, NPS12” and above in 1500# and NPS4” and above in class 2500#. All Spiral Wound Gaskets with PTFE filler material have inner rings. Inner ring material usually matches the winding material and is compatible with fluid/media to be handled.
Style RI
The gasket is fitted with an inner ring but without outer ring.
