| Ring Joint OV 321 R13 ASME B16.20 | R13 | 1/2 | 2500lbs, 300lbs, 600lbs | | €15.61/piece |
| Ring Joint OV 321 R11 ASME B16.20 | R11 | 1/2 | 600lbs, 300lbs | | €8.72/piece |
| Ring Joint OV 321 R49 ASME B16.20 API 6A | R49 | 8 | 900lbs, 300lbs, 600lbs | | €49.73/piece |
| Ring Joint OV 321 R31 ASME B16.20 API 6A | R31 | 3 | 600lbs, 300lbs, 900lbs | | €21.93/piece |
| Ring Joint OV 321 R20 ASME B16.20 API 6A | R20 | 1.1/2 | 600lbs, 1500lbs, 300lbs, 900lbs | | €23.92/piece |
| Ring Joint OV 321 R14 ASME B16.20 | R14 | 3/4 | 900lbs, 1500lbs | | €15.61/piece |
| Ring Joint OV 321 R12 ASME B16.20 | R12 | 1/2 | 1500lbs, 900lbs | | €13.06/piece |
| Ring Joint OV 321 R26 ASME B16.20 API 6A | R26 | 2 | 300lbs, 600lbs, 2500lbs | | €17.44/piece |
| Ring Joint OV 321 R53 ASME B16.20 API 6A | R53 | 10 | 900lbs, 300lbs, 600lbs | | €66.71/piece |
| Ring Joint OV 321 R37 ASME B16.20 API 6A | R37 | 4 | 600lbs, 900lbs, 300lbs | | €26.52/piece |
| Ring Joint OV 321 R38 ASME B16.20 | R38 | 4 | 2500lbs | | €41.77/piece |
| Ring Joint OV 321 R23 ASME B16.20 API 6A | R23 | 1.1/2 | 300lbs, 2500lbs, 600lbs | | €14.69/piece |
| Ring Joint OV 321 R32 ASME B16.20 | R32 | 3 | 2500lbs | | €24.89/piece |
| Ring Joint OV 321 R71 ASME B16.20 | R71 | 18 | 1500lbs | | €608.53/piece |
| Ring Joint OV 321 R16 ASME B16.20 | R16 | 3/4 | 900lbs, 600lbs, 300lbs, 1500lbs, 2500lbs | | €18.41/piece |
| Ring Joint OV 321 R61 ASME B16.20 | R61 | 14 | 600lbs, 300lbs | | €161.67/piece |
| Ring Joint OV 321 R55 ASME B16.20 | R55 | 10 | 2500lbs | | €344.40/piece |
| Ring Joint OV 321 R29 ASME B16.20 | R29 | 3 | 150lbs | | €51.71/piece |
| Ring Joint OV 321 R57 ASME B16.20 API 6A | R57 | 12 | 900lbs, 600lbs, 300lbs | | €81.75/piece |
| Ring Joint OV 321 R24 ASME B16.20 API 6A | R24 | 2 | 900lbs, 1500lbs | | €15.71/piece |
| Ring Joint OV 321 R77 ASME B16.20 | R77 | 24 | 600lbs, 300lbs | | €412.13/piece |
| Ring Joint OV 321 R45 ASME B16.20 API 6A | R45 | 6 | 900lbs, 600lbs, 300lbs | | €37.79/piece |