The BR-AOD Annulus Fluid Drain Valve provides a means for communication between the tubing and the annulus. A differential pressure in favor of the annulus activates the valve. This differential pressure acts against an area until sufficient force shears the screws and pumps the piston down. After it opens, the fluid can be drained from the annulus prior to pulling the tubing string.
Technical document
Product Specification
| Tubing (in.) | Tool | Product Number | ||
|---|---|---|---|---|
| Maximum OD (in.) | Minimum ID (in.) | Standard Thread Connections | ||
| 2-3/8" | 3.000 | 1.938 | 2-3/8" EU 8 RD | BR-AOD-230 |
| 2-7/8" | 3.688 | 2.375 | 2-7/8" EU 8 RD | BR-AOD-270 |
| 3-1/2" | 4.500 | 2.938 | 3-1/2" EU 8 RD | BR-AOD-350 |
| 4-1/2" | 5.500 | 3.969 | 4-1/2" EU 8 RD | BR-AOD-450 |
NOTE: Other sizes and connections available upon request.