Octagonal Ring Joint Gasket
Model:KXT 810
> Octagonal Ring Joint Gasket are for oilfield and process industry duties. > Octagonal shape gasket is belong to API 6A R series > These gaskets are used in pressures up to 10,000 PSI, more than Oval ring joint. > The oval type is the only gasket that will fit a bottom radiused groove. > Gaskets and not re-used after torque.
Octagonal Ring Joint Gasket
installed inside a ladder type ring groove on the surface of the flange, when screw down the connecting bolt, the axial compression and up and down the ladder type slot 1, produce plastic deformation, forming a ring seal belt, establish the initial seal.After booster, under the action of medium pressure, make the ring gasket radial expansion.Gasket with trapezoidal groove cant post more tightly, self-tightening effect.Medium pressure increases, however, also can make the flange and the connecting bolt deformation, caused by a relative separation between the sealing surface, gasket seal than relative decline, thus, ring gasket can be thought of as a half since the tight closure.
Octagonal metal ring gasket
It mainly match with flange groove is surface contact, compared with the oval ring gasket though with flange groove or not easily, but it can be used again, and because of the cross section is made up of straight line easy processing.At the same time choose octagonal metal ring gasket material should be lower than the flange surface hardness 15 ~ 20 hb
Note
When octagonal type is chosen, the material hardness of the pad should be 15~20HB lower than that of the flange face. It is recommended the pad is not recycled.
Applicable standards
ANSI B16.5-1973 、 JPI-75-15-70 、 GB 699 、 GB1220 、 JB755 、 HG20633-97
Octa ring gasket drawings
Main materials
| Material | Maximum hardness BRINELL | Temperature（ ℃ ） | Abbreviations marker | |
| Brucellosis | Rockwell | |||
| Soft Iron | 90 | 56 | -60~500 | D |
| Low Carbon Steel | 120 | 68 | -40～540 | S |
| 304SS | 160 | 83 | -250~540 | 304 |
| 304LSS | 160 | 83 | -250~540 | 304L |
| 316SS | 160 | 83 | -200~815 | 316 |
| 316LSS | 160 | 83 | -200~815 | 316 |
| 321SS | 160 | 83 | -200~870 | 321 |
| 347SS | 160 | 83 | -200~870 | 347 |
| 410SS | 170 | 86 | -40~850 | 410 |
| 5Cr-0.5Mo | 130 | -29 650 | ||
| Copper | 80 | -100 315 | ||
| Aluminum | 35 | -200 425 | ||
| Inconel 600 | 150 | -100 1095 | ||
| Incoloy 825 | 150 | -100 1095 | ||
| Monel 400 | 150 | -100 760 | ||
| Titanium | 215 | -200 540 | ||
| Nickel 200 - | 110 | 200 760 | ||
| Hastelloy B2 | 230 | -100 1095 | ||
| Hastelloy C276 | 210 | -100 1095 | ||
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1. Professional
We provide OEM, ODM of Ring joint gaskets for our customers worldwide, highly praised by our customers
2. High quality guarantee.
We strictly carry out ISO quality management system for all production process and raw material incoming.
3. High Quality Material Quarantee
All of our products are high quality material according ASTM
4.After service
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5. Factory Price with Samll MOQ
We promise factory low price with small MOQ.
6.Timely Delivery
For prototype tooling sample lead time 3~7 days For production tooling lead time 10-15 days For order 7-15 days according to quantity
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