| Customization: | Available |
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| After-sales Service: | 1 Year |
| Warranty: | 1 Year |
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Drop-In Check valves
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 and 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.
Specification |
Product Code |
Check Valve Assembly | Landing Sub |
Stop Ring |
Working Pressure (MPa) |
Connection API |
O.D.(mm) |
O.D.(mm) |
I.D.(mm) |
||||
| 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 |
Established in 1973 as a state-owned Mudanjiang Petroleum Machinery Factory. After 50 years a new private company(Tianhe) was registered and established in 2006. At present, Tianhe Group has 5 sales companies, including Chengdu, Beijing, Shanghai, Yanan, Mudanjiang branches. 2 large factories, in cluding Mudanjiang and Shanghai factory, controlling the important sales territories in China. The company is also actively expanding its business overseas. Currently, more than 50 countries and regions around the world, as well as over 200 well-known oil companies and service company customers, are using products under the Tianhe brand. Tianhe has become one of the most popular Asian oil brands.
1.The company has over 50 years of professional production experience and is capable of independently manufacturing a complete range of downhole tools, including: drill pipes, drill collars, stabilizers, jars, fishing tools, etc.
2. We have a strict quality control system, conducting strict quality checks from raw materials to finished products.
3.The company has obtained ISO9001 quality system certification and holds API certificates such as 5CT, 5DP, 7-1, Q1, etc.
4.The minimum order quantity is 1, and the delivery cycle can be strictly controlled.
5.Our export products have been recognized by customers in more than 50 countries and regions.
1.Q:Are you a factory or trading company?
We are a factory and the Top 3 of oildrilling equipment manufacturer.
2.Q:Where is your factory located?
We locate in Heilongjiang Province, China.
3. Q:What do your factory do regarding quality control?
From material to products, we inspect each process to keep good quality.
And SGS inspection can be accepted.
4.Q:How about MOQ ?
We have stock of common sizes at hand, so even few ton is accepted.
5.Q:How about payment ?
Both T/T and L/C can be accepted.
6.Q: How long does your warranty?
We can assured the quality within 90 days after receiving the cargoes.
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