Metallic Gasket Materials: R65-R90
| API Ring Number | Size of Flange, Inches | ||||||
| General Use | Oil Field Use | ||||||
| 150 lbs. | 300 to 600 lbs. | 900 lbs. | 1500 lbs. | 2500 lbs. | 500, 1000, 2000, 3000 lbs. | 5000 lbs. | |
| R65 | 16 | 16 | |||||
| R66 | 16 | ||||||
| R67 | 16 | ||||||
| R68 | 18 | ||||||
| R69 | 18 | 18 | |||||
| R70 | 18 | ||||||
| R71 | 18 | ||||||
| R72 | 20 | ||||||
| R73 | 20 | 20 | |||||
| R74 | 20 | ||||||
| R75 | 20 | ||||||
| R76 | 24 | ||||||
| R77 | 24 | ||||||
| R78 | 24 | ||||||
| R79 | 24 | ||||||
| R80 | 22 | ||||||
| R81 | 22 | ||||||
| R82 | 1* | ||||||
| R83 | |||||||
| R84 | 1-1/2* | ||||||
| R85 | 2* | ||||||
| R86 | 2-1/2* | ||||||
| R87 | 3* | ||||||
| R88 | 4* | ||||||
| R89 | 3-1/2* | ||||||
| R90 | 5* | ||||||
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RTJ standard size gaskets are manufactured in accordance with API-6A and ANSI B16.2 specifications and are furnished in stock materials including soft iron, low carbon steel, 4-6 chrome (F5), 304 & 304L, 316 & 316L, 347, 410, Monel, Inconel and Incoloy.
UNLESS OTHERWISE SPECIFIED, GRUV-TITE FORGED SEAMLESS RING JOINT GASKETS
WILL BE FURNISED IN OVAL DESIGN.
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