Ball Seat Circulation Valve

The STAR Ball Seat Circulating Valve is designed to be a reliable closeable circulation port generally ran at the bottom of a tool string in either cased or open hole for vertical or horizontal well completions. Once the tool string is in place and the required circulation operation is complete a ball is circulated onto the seat, an adjustable pre-determined pressure is applied and an internal sleeve shifts downwards which closes the internal circulating ports. Once the sleeve has been shifted a positive locking mechanism ensures it is securely maintained in place.

Features and Benefits

Internal secure locking mechanism
Adjustable closing pressure
Designed for both horizontal and vertical applications
Designed for both cased and open hole applications
Available in a wide range of materials and connections

Technical Data

Max O.D. STD Connection
in mm in mm
2.28 57.91 2 7/8 EUE 73
5.42 137.67 3 1/2 EUE 88.9
5.42 137.67 4 1/2 LTC 114.3
6.51 165.35 5 1/2 LTC 139.7