Drop-in Check Valve

Drop-in Check Valve
Drop-in Check Valve
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The drop-in check valve is installed in the drill string to prevent internal blowouts. They are used as a sub above the drill string before the check valve is run in the downhole. Once installed, the valve only allows a downward flow of drilling fluid.

Specifications
Specification Check Valve Assembly Valve Sub Stop Ring Seal Pressure (Mpa) Connection API
O.D.(mm) O.D.(mm) I.D.(mm)
FT89 33 89 30 35 NC26
FT105 36 105 33 -70 NC31
FT121 50 121 46   NC38
FT159 54 159 50   NC46
FT168 68 168 64   NC50
FT178 68 178 64   5 1/2 FH
FT203 68 203 64   6 5/8 REG

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