Application

Check valve is a back pressure valve deployed in the BHA to prevent high pressure from getting into the work string and then to the surface.

Design

The valve consists of a valve body, two subs, hold-downs, balls, springs and O-rings. It is low-maintenance due to fewer components.
The valve is run on coiled tubing. If flow reverses, the valve closes and holds pressure from below the valve. The valve re-opens when back pressure from above the valve exceeds one from below.

BITTEKHNIKA, whose policy is one of continuous improvement, reserves the right to discontinue or change designs and specifications without notice or written incurring obligations. Therefore, the below figures are meant to serve as a guide only. Additional sizes are available. For a complete listing, contact us: sales@bittekhnika.ru.