Drop-In Check Valves The Smart Choice For Industrial Application
Brand Name:ATO
Certification:API
Model Number:FT203
Minimum Order Quantity:1
Delivery Time:10-15 WORK DAYS
Payment Terms:L/C, T/T
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15th/F,Unit1,BLDG#2,Xi'an West OE Park,77 Keji Er Road, Hi-tech Zone, Xi’an, China 710075
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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.
When a blowout is about to happen,the thread connections of the kelly is screwed out immediately and a check valve is placed into the drill pipe and then pumped downward to the required place.Thus the blowout can be prevented.
When ordering please specify:
- Smallest bore in drill string through which the check valve must pass.
- Landing sub connection size and type.
- Outside diameter of mating tool joints.
Specification Check valve Assembly
O.D.(mm)Landing Sub
O.D.(mm)Stop Ring
I.D.(mm)Working Pressure
(MPa)API Connection FT89 34 89 31 35
(70)NC26 FT105 34 105 31 NC31 FT121 50 121 46 NC38 FT159 54 159 50 NC46 FT168 68 168 64.5 NC50 FT178 68 178 64.5 5 1/2 FH FT203 68 203 64.5 6 5/8 REG
Drop-In Check Valves The Smart Choice For Industrial Application
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