We rely on the 30 years experience of IGP to manufacture this product. Ring Type Joint Gaskets seal by a wedging action between the Flange and the Gasket surfaces. The different flange and fluids sealed demand we stock four different cross section of gasket in three different types of metals. More configurations are available upon request.

Oval Type
This Type is considered a standard cross section. It requires a lower torque load to conform and seal. This is stocked at Norwesco in most sizes and in the four basic metals. Gasket complies with B-16-20

Octagonal Type
This Type of cross section creates a more secure seal then the above. More attention must be taken to dimensions and flaws in sealing surfaces and additional torgue load is required to ensure gasket conforms.
Gasket complies with B-16-20

BX Type
Square in cross section and used in the most extreme pressure applications. Up to 20,000 psi. Gasket can only be used in API 6BX Flanges

RX Type
The RX type Gasket is dimensionally similar to the octagonal type. The cross section is taller exposing more area of gasket to the fluid pressure securing a more effective seal.

The Standard Metals Stocked

  • Soft Iron, Maximum 90 Brinell Hardness
  • Low Carbon Steel . Maximum 120 Brinell Hardness
  • 304 Stainless Steel Maximum 160 Brinell Hardness
  • 316 Stainless Steel Maximum 160 Brinell Hardness