FIELD: flow measuring technologies.
SUBSTANCE: device has body detachably connected to joint, through which a rod is let connected on one end to locking piece placed on body. Locking piece is made in form of conical screw with stepped outer surface and is provided with screw groove having rectangular or trapezoid cross-section, in which a screw spiral is mounted with rectangular or trapezoid profile, slanted along outer diameter to cone identical to cone of saddle and body. Rod has main and additional packing gland compactions.
EFFECT: higher reliability.
2 cl, 2 dwg
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Authors
Dates
2004-11-27—Published
2002-12-27—Filed