EQUALIZING CHECK VALVE

INTRODUCTION

The Equalizing Check Valves prevent downward flow while allowing upward flow through the device.  These wireline retrievable check valves are run and landed in components with Model F or R profiles.  They are utilized to test tubing, set hydraulic packers and prevent fluids from entering the formation  during intermitted gas lift installation. CS-FB Equalizing Check Valves are complete units (not flow control bottoms) that land on the top nogo shoulder of a Model F Landing Nipple. The no-go shoulder prevents downward movement, but  the valves are not locked into the nipple to prevent upward movement. The check valve is equalized  by shifting open large bypass ports during retrieval operations.  CS-RB Equalizing Check Valves are complete units (not flow control bottoms) that land on the bottom  no-go shoulder of a Model R Landing Nipple. The no-go shoulder prevents downward movement,  but the valves are not locked into the nipple to prevent upward movement. The check valve is  equalized by shifting open large bypass ports during retrieval operations.

FEATURES

◎ Large flow area; 

◎ Fluid bypass for retrieval; 

◎ Single-trip installation and removal; 

◎ Simple design.

Note: Other specification products are available.