Annulus pressure operated test tools, catalog page 19
AP Shut-Off Valve & AP Open Valve
One-time full-bore valves that together complete one open/close cycle
Description
The AP shut-off valve is a one-time, full-bore shut-off valve used in cased holes and operated by annulus pressure.
The AP open valve is a one-time, full-bore open valve used in cased holes and operated by annulus pressure.
Used together, the AP open valve and AP shut-off valve complete one open-close operation.
Features
- Downhole, the AP shut-off valve cannot be reopened once closed, and the AP open valve cannot be closed once opened
- Shear pin structure ensures the valves cannot actuate early while running in
- To operate, apply annulus pressure above the required rupture disc burst pressure
