Ball Activated Circulation Valves
Technical Specifications
Maximum
O.D.
Minimum
I.D.
Typical Release
Pressure (1 Brass Pin)
Make-Up
Length
Internal Ball
Clearance
Ball
Release Size
1.687”
0.406”
1000lbs
52”
a”
v”
1.750”
0.406”
1000lbs
52”
a”
v”
2.125”
0.406”
700lbs
52”
a”
v”
2.250”
0.625”
550lbs
52”
s”
n”
2.375”
0.625”
550lbs
52”
s”
n”
Ball Activated Circulation Valves
BALL ACTIVATED CIRCULATION VALVE
The Ball Activated Circulation Valve is designed to
allow circulation above the coiled tubing work/tool
string.
The tool is activated by using a drop ball and can
be adjusted on surface to shear out by varying the
number and type of shear pin used. Pressure
applied to the drop ball causes the pins to shear
and the sleeve to move down allowing circulation
via the side ports.
Features/Benefits
! Simple drop ball design to activate
When ordering Ball Activated Circulation Valves
please specify:
! Size
! Thread connection
wwww.nov.com / [email protected]
Downhole Tools Corporate Headquarters
7909 Parkwood Circle Drive
Houston, TX 77036
Phone: 713 346 7500
Fax: 713 346 7959
© 2007 National Oilwell Varco
D391000912-MKT-001 Rev.01