| After-sales Service: | Support |
|---|---|
| Warranty: | Support |
| Manufacturing Process: | CNC Milling |
| Surface Treatment: | Spray-Paint |
| Operation Pressure: | Atmospheric Pressure |
| Material: | Alloy |
| Customization: |
|---|
Suppliers with verified business licenses
Audited Supplier Drop-In Check Valves prevent return flow during a kick and are suitable for most drilling situations in which return flow through the drill string is a risk and normal operation requires the benefits of a full-bore sub. By preventing upward flow through the drill pipe, but allowing fluid to be pumped downward to circulate the well, the valves provide the driller with the means to control the drill pipe pressures when required, significantly improving and simplifying well control.
When blowout is going to be happened,the thread connections of the kelly is screw out immediately and put the check valve is into the drill pipe and then pumped downward to the required place.Thus the blowout can be prevented.
When Ordering Please Specify:
1.Smallest bore in drill string through which the check valve must pass.
2.Landing sub connection size and type.
3.Outside diameter of mating tool joints.
Specifications - Drop-In Check valve
Specification |
Product Code |
Check valve Assembly O.D.(mm) |
Landing Sub O.D.(mm) | Stop Ring I.D.(mm) | Working Pressure (MPa) | API Connection |
| FT89 | F030892 | 34 | 89 | 31 | 35 (70) |
NC26 |
| FT105 | F031051 | 34 | 105 | 31 | NC31 | |
| FT121 | F031213 | 50 | 121 | 46 | NC38 | |
| FT159 | F031591 | 54 | 159 | 50 | NC46 | |
| FT168 | F031681 | 68 | 168 | 64.5 | NC50 | |
| FT178 | F031782 | 68 | 178 | 64.5 | 5 1/2 FH | |
| FT203 | F032032 | 68 | 203 | 64.5 | 6 5/8 REG |
All the packing will be suitable for export packing. All precautions will be taken to protect the cases from damage during overseas transportation,so as to receive them under proper conditions at the final destination.Wooden case packaging materials will be treated.
Tianhe Oil Group Huifeng Petroleum Equipment Co., Ltd is a modernized medium-scale enterprise specialized in production of oil and gas tools.
As an API-Certified established manufacturer and supplier of a comprehensive range of downhole equipment with related accessories, we are committed to providing the highest Quality products for the Petroleum and natural gas industry since 1973.
Tianhe Oil Group strongly believes and promotes Total Quality Management, implement the ISO quality management system and HSE management system and API Standard, which has been deeply implanted into every person's thought and carried out into every aspect of work.
So far, Tianhe Oil Group has established strong business relationships with over 200 international oil & gas companies in supporting the top 50 oil producing countries.
We take pride in delivering superior performances and reliability. Our objective is to exceed your expectations, improve your economics and be an integral part of your strategies.
Suppliers with verified business licenses
Audited Supplier 
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