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Type FZF Float Sub

Short Description:

Type FZF Float Sub Model “FZF” Float Sub is a new-style drilling tool inside blowout prevent. During normal drilling, valve open, drilling fluid circulation clearly while down-hole happen to kick or blowout. The valve cap shut off in order to achieve blowout prevention. When tripping in or out, it preventing drilling fluid flowing from back and prevent mud entering into the drill string, realizing the function of preventing block. It is a special tool for preventing blowout and block in drill...


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Type FZF Float Sub

Model “FZF” Float Sub is a new-style drilling tool inside blowout prevent. During normal drilling, valve open, drilling fluid circulation clearly while down-hole happen to kick or blowout. The valve cap shut off in order to achieve blowout prevention. When tripping in or out, it preventing drilling fluid flowing from back and prevent mud entering into the drill string, realizing the function of preventing block. It is a special tool for preventing blowout and block in drilling operation.

Specifications

Model  O.D.

mm (in)

I.D.

mm (in)

Upper joint thread
Bottom joint thread
 Length mm (in) Float valve wick code Max. working pressure MPa Working conditions
FZF89/70-NC26×NC26 89(3 1/2) 31.8           (1 1/4) NC26 NC26 610         (24) 1R/70 35~70 petroleum、natural gas、mud
FZF95/70-2 3/8PAC×2 3/8PAC 95(3 3/4) 31.8(1 1/4) 2 3/8PAC 2 3/8PAC 915(36) 1R/70
FZF105/70-NC31×NC31 105(4 1/8) 54(2 1/8) NC31 NC31 610(24) 2F—3R/70
FZF121/70-NC38×NC38 121(4 3/4) 51(2 ) NC38 NC38 610(24) 3 1/2IF/70
FZF127/70-NC38×NC38 127(5) 51(2) NC38 NC38 610(24) 3F/70
FZF165/70-NC50×NC50 165(6 1/2) 71.4(2 13/16) NC50 NC50 610(24) 4R/70II
FZF172/70-NC50×NC50 172(6 3/4) 71.4(2 13/16) NC50 NC50 725(24) 5R/70
FZF203/70-6 5/8REG×6 5/8REG 203(8) 76.2(3) 6 5/8REG 6 5/8REG 915(36) 5F—6R/70
::1R 1F-2R2F-3R3F4R4F5R5F-6R6R3570MPa

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