| 摘要 |
A protection device of a screw pair of a pressure device comprises a housing, which is a compact casing with a fold-away funnel mounted on an end of nut mounted on a frame of a working stand. Inside the compact casing with a fold-away funnel an input of a "cleaner" is mounted, which is made for example in the form of a nozzle, a jet, etc., and the cleaner inputs can be several. |
