FIELD: oil and gas industry.
SUBSTANCE: device has hollow cylindrical body with conical aperture for mounting replaceable hermetic inserts and flange with moving supports for rigid holding of inserts. Into conical surface of body ring-shaped casing is mounted in form of two separate segments, forming an aperture for passing of cleaned pipes with minimal space. Ring-shaped casing is made with ring-shaped hollow, wherein elastic collar is positioned to provide for unlimited movement capability of it in different radial directions. Casing is rigidly fixed with extending stops.
EFFECT: simplified construction, simplified maintenance.
9 dwg
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