DEVICE AND METHOD OF CONVERTING MECHANICAL FORCE FOR ACTUATION OF PRESSING DEVICE FOR SQUEEZING FITTINGS Russian patent published in 2019 - IPC B25B27/10 F15B7/02 

FIELD: technological processes.

SUBSTANCE: invention relates to method and device for pressurizing large compression fittings. Device for conversion of mechanical force for actuation of compression fitting pressing device includes spare capacity (4) for working fluid, cylinder (8) of pump, working cylinder (12), first pipeline for connection of spare capacity (4) to cylinder (8) of pump, second pipeline (16) for connection of cylinder (8) of pump with working cylinder (12) and third pipeline (18) for connection of working cylinder (12) with spare capacity (4). First pipeline (14) comprises means (20) for preventing backflow into standby tank (4), second pipeline (16) comprises means (22) to prevent reverse flow into pump cylinder (8), wherein there are switches (24) for opening and closing third pipeline (18), and working cylinder (12) has working volume (V_A) is larger than working volume (V_P) of pump cylinder (8).

EFFECT: improved pressing of large compression fittings.

9 cl, 7 dwg