Wenzhou Jingwei Seals Co., Ltd
Wenzhou Jingwei Seals Co., Ltd
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Stainless Steel Octagonal R20 Ring Type Joint
We Manufacture and supply high quality Ring joint Gaskets for high pressure and temperature service conditions. These gaskets are widely used in Refineries, Petrochemical Industries, Oil drilling well head equipments, Pressure Vessels, valves, Christmas Tree valves and Pipe lines. Ring joints Gasket are strictly manufactured as per API-6A and ASME B16.20 specification.
We manufacture from R 11 through R 105 to suit the following flange specifications:
The Octagonal cross section Ring Joint is the development oval cross section and offers a better sealing performance. Only oval cross section gaskets can be used when the flange grooves are with the round bottom. Both Octagonal and oval cross sectioned gaskets can be used when the grooves of the flange are having a flat bottom.
we supplies ring joint gaskets (RTJ Gasket) with the hardness numbers as follows:
| GASKET MATERIALS | BRINELL HARDNESS NUMBER (max) | ROCKWELL HARDNESS NUMBER (max) | IDENTIFICATION |
|---|---|---|---|
| Soft iron | 90 | 56 | D |
| Low carbon steel | 120 | 68 | S |
| 4-6% Chrome 1/2% molybdenum | 130 | 72 | F5 |
| 304 Stainless Steel | 160 | 83 | S304 |
| 316 Stainless Steel | 160 | 83 | S316 |
| 347 Stainless Steel | 160 | 83 | S347 |