Drain (Bleed-off) Valve
A hydraulic valve activated by absolute or differential pressure in the tubing: it actuates by shifting an internal sleeve.
Advantages
- activation can be set by absolute or differential pressure;
- no risk of a drop-bar failing to reach the valve due to paraffin or rust in the tubing;
- a backup activation method is available;
- enlarged circulation-window area.
Specifications
- circulation-port area: up to 3600 mm²
- burst pressure: up to 110 MPa
- temperature: up to 140 °C
- size range: 60/102
Application area and experience
The drain (bleed-off) valve is designed to drain fluid from the tubing string into the annulus before pulling the installation.
