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    Products >> Drilling Tools

    Reverse Circulation Junk Baskets

    The reverse circulation junk basket is used to retreive all types of samll junk objects in well bores.such as bit cones, cutting blades and hand tools,etc.
    During operation,with the steel ball dropped into the valve seat, fluid flow in a continuous stream to the center of the tool and up through return ports in the upper end of the barrel , all junk is thus carried into the barrel above the junk catcher.

    Type Max OD mm(inch) Steel ball OD
    Hole Size Range mm(inch) OAL
    LL146 151(5 15/16) 35(1 3/8) NC38 155.6~165.1(6-1/8~6-1/2) 1376(54-11/64)
    LL200 205(8 5/64) 43(1 11/16) NC50 212.7~241.3(6-1/8~6-1/2) 1766(69-17/32)
    LL257 257(10 1/8) 48(1 57/64) 6 5/8REG 273~295.3(10-3/4~11-5/8) 1770(69-11/16)
    LL280 286(11 1/4) 48(1 57/64) 6 5/8REG 298.5~311.2(11-3/4~12-1/4) 1846(72-43/64)
    LL381 381(15) 60(2 23/64) 7 5/8REG 406.4~444.5(16~17-1/2) 1780(70-5/64)
    Prev: Junk Subs

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      Beijing Tengyue Technology Co., Ltd is a big high-tech integrated enterprise, which mainly on R&D inclinometer. It possesses excellent equipment and a number of specialists and technicians .Our company consistently keeps API and ISO as the standard and puts it into practice.
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