Stainless Steel Oct Ring Gasket
Cixi Jayu Sealing Materials Co.,Ltd is one of the leading China stainless steel oct ring gasket manufacturers, welcome to wholesale cheap stainless steel oct ring gasket, 316 oct ring gasket from our professional factory. R octagonal gasket refers to the metal gasket of octagonal-shaped section by processing metal materials.
It is of pressure energized seal in radial direction. The
average diameter of the gasket is slightly larger than the average diameter
of the gasket groove. The angle between ring gasket and bevel face of gasket
groove is around 23o. It has good sealing as the contact between gasket and the
ring joint faces, especially the outside face, and is pressed tightly to keep
good sealing performance. The octagonal metal ring gasket is installed inside the ring joint groove of flange face. When the connecting bolt
is fastened, it is compressed in axis direction and is pressed close to the
upper and lower ring joint grooves, which result in the plastic deformation to
create the seal. After pressure is raised, the ring gasket expands in radial
direction under the force of media pressure. The gasket sticks more tightly to
the bevel face of ring joint groove to form self-tightening. However, the rise
of media pressure will deform the flange and connecting bolt, it will cause the
relative separation between the sealing surfaces, and the sealing ratio of
gaskets is reduced accordingly. So the metal ring gasket is regarded as
semi-pressure energized ring gasket. Cutaway View
of 'R' Steel Ring and Flange as follows Features 1.R octagonal ring gasket is the type of mechanical compression, that
is to say it is sealed only by the tightening torque of flanged bolt; 2.R octagonal ring gasket is used
in 6B flanges, with standard flanged connections and line seal, and it is easy
for storage and transport; 3.R octagonal ring gasket can be used interchangeably with R oval ring
gasket and RX ring gasket; 4.R octagonal ring gasket can be
reused in the field in the case of the appearance with
no damage; 5.The hardness of R octagonal ring gasket must be15~20HB lower than the mating
flange face hardness; 6.The seal faces of R octagonal ring gasket, including the bevel faces, shouldn't have
the scratches, knock marks,cracks and defects. Its surface roughness shouldn't
be larger than Ra1.6. Performance Parameters gasket factor m=5.50-6.50 gasket
using pressure <=42MPa gasket
using temperature -196oC-1000oC minimum
pre-tightening pressure y=126.6-182.8MPa Materials Soft Iron,Low C/S,ss410,ss304,ss316,ss347,F5,F11,Copper,Aluminum,Inconel 600,Inconel 625,Incoloy 800,Incoloy 825,Monel 400,Titanium,Nikel 200,Hastelloy C276,Zirconium702 Application The gaskets are primarily used in the oil,
gas, petrochemical and offshore industries. They are also commonly used on valves,
pipe-work assemblies and vessel joints and are used to seal flanged connections
subject to high pressures and temperatures. Technical StandardsIt can provide any standard and non-standard sizes,
including the standards of API 6A, API 17D, ASME B16.20, DIN 2693-67, JPI-7S-23-72
and other standards.
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