KOT Three-Position Check Valve (rated to 3000 psi and 7250 psi)
KOT Three-Position Check Valve (rated to 3000 psi and 7250 psi)
KOT Three-Position Check Valve (rated to 3000 psi and 7250 psi)
It is used for a two-way fluid bypass through its cavity and as a check valve in the tubing string.
APPLICATION
- flowing well operation;
- well operation with rodless pumps;
- mixed well operation (start-up with a pump and flowing operation after the pump is shut down).
ADVANTAGES
- enables to perform a direct flushing of the space below the valve or chemical agents injection in the course of flowing well operation;
- enables to flush the pump cavity or inject chemical agents in the course of well pumping;
- increases operation time between failures of the pumping unit.
DESIGN FEATURES
- it has a check valve to maintain the column of fluid in the tubing string;
- it has a movable bushing to provide communication between the space above and below the valve when preset pressure differential is generated in the tubing.
TESTIMONIALS
- Testimonial/recommendation from TPP “RITEKBeloyarskneft”
ARTICLES ABOUT PRODUCT
SPECIFICATIONS
| Parameter, unit of measurement | КОТ-93-40(29)-210-Т1001-К3 |
| AHA 2.505.012-07 | |
| Minimum inner diameter of the production string, mm. | 112 |
| Maximum temperature, °С | 100(1501) |
| Maximum pressure differential, MPa | 21 |
| Pressure differential required to open the valve, MPa: | |
| - normal upwards | 0.01 |
| - for direct crossflow, downwards2 | 14±2.0 |
| Dimensions, mm: | |
| - outside diameter (not more than) | 93 |
| - passage bore diameter | 40 |
| - equivalent diameter of the flushing port | 29 |
| - length (not more than) | 727 |
| Weight, kg (not more than) | 24 |
| Plain-end tubing connection thread as per GOST 633-80: | 73 |
| 1) in top part (coupling) | |
| 2) in bottom part (nipple) |
1When placing an equipment order for Т=150°С, please indicate Т150.
2When an ESP unit is used during the operation it is installed instead of the check valve above the ESP.
The valve is available in the following configurations:
|
No. |
SPTA kit |
Valves for Т=100°С |
Valves for Т=150°С | ||
|
Type |
Design Documentation code |
Type |
Design Documentation code | ||
|
1 |
Zero |
КОТ-93-40(29)-210-Т100-К3-00 |
AHA 2.505.012-07/00 |
KOT-93-40(29)-210-Т150-К3-00 |
AHA 2.505.012-27/00 |
|
2 |
Minimum SPTA 01 |
КОТ-93-40(29)-210-Т100-К3-01 |
AHA 2.505.012-07/01 |
KOT-93-40(29)-210-Т150-К3-01 |
AHA 2.505.012-27/01 |
|
3 |
Standard SPTA 02 |
КОТ-93-40(29)-210-Т100-К3-02 |
AHA 2.505.012-07/02 |
КОТ-93-40(29)-210-Т150-К3-02 |
AHA 2.505.012-27/02 |
|
4 |
Standard Plus SPTA 03 |
КОТ-93-40(29)-210-Т100-К3-03 |
AHA 2.505.012-07/03 |
КОТ-93-40(29)-210-Т150-К3-03 |
AHA 2.505.012-27/03 |
|
5 |
Maximum SPTA 04 |
КОТ-93-40(29)-210-Т100-К3-04 |
AHA 2.505.012-07/04 |
КОТ-93-40(29)-210-Т150-К3-04 |
AHA 2.505.012-27/04 |
Sample order code of the valve for 21 MPa in “Zero” configuration:
- for Т=100ºС — KOT-93-40(29)-210-Т100-К3-00 AHA 2.505.012-07/00;
- for Т=150ºС — KOT-93-40(29)-210-Т150-К3-00 AHA 2.505.012-27/00.
Sample order code of the valve for 35 MPa in “Standard SPTA 02” configuration:
- for Т=100ºС — KOT-93-45(42)-350-Т100-К3-02 AHA 2.505.150/02;
- for Т=150ºС — KOT-93-45(42)-350-Т150-К3-02 AHA 2.505.150-20/02.
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