Axial unloader valve KU-O
Main Features and Benefits
- Valve opening triggered by an upward pull of the tubing;
- Equipped with a pin to convey torque onto the assembly below the valve;
- Valve closing triggered by a downward movement of the tubing;
- Adjustable triggering settings;
- Tool's components are plated or coated with phosphate;
- Simple design.
Application
- Fracturing, acid fracturing;
- Perforation;
- Other operations upon which circulation between the annulus and the tubing should be ensured.
Type
KU-O 82-40-70
KU-O 101-42-70
KU-O 112-52-70
KU-O 114-62-70
KU-O 136-76-70
Casing size (in / mm)
3 1/2 / 88
4 3/8 / 112
4 5/8 / 118
4 3/4 / 120
5 3/4 / 144
Valve size
OD (in / mm)
3.23 / 82
3.976 / 101
4.41 / 112
4.49 / 114
5.354 / 136
ID (in / mm)
1.575 / 40
1.654 / 42
2.047 / 52
2.44 / 62
2.992 / 76
Connection* (in / mm)
2.375 NU / 60.33
2.875 NU / 73.03
2.875 NU / 73.03
2.875 NU / 73.03
3.5 NU / 88.9
Length, in, no more than
21.38
21.38
21.73
23.15
27.52
Weight, lbs, no more than
26.5
33
46.3
46.3
55.1
Working pressure, psi
5076**
5076**
5076**
5076**
5076**
Total Flow Area of Side Ports, in²
0.53
0.62
0.81
0.81
0.84
Maximum temperature, °F
266 ***
266 ***
266 ***
266 ***
266 ***
** Working pressure rating may be increased to 7252 psi; 10150 psi.
*** High-temperature (302 °F) model of the valve is available on request.
Valve actuation force of an upward tubing pull can be adjusted in the range of 2205...13228 lbs per customer request.
Higher performance valve available for hostile environments – K2 Model.
Other sizes of the valve are available on request.