FIELD: pipe line engineering. SUBSTANCE: device has head cone provided with a tubular housing for connecting it with the top end of the pipe to be replaced, brittle member made up as a pushing out plug, punched metallic foil, plastic film or diaphragm for sealing the opening of the tubular housing, and at least one check valve made up as a flexible ring, rubber sealing ring or plug and spring unit that allows hermetic to flow from the opening of the housing into the space through the wall of the housing. EFFECT: simplified method and device. 20 cl, 12 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| DEVICE AND METHOD OF REMOVAL OF LIQUID FROM GAS PIPE-LINES | 1993 |
|
RU2075739C1 |
| VALVE CARTRIDGE FOR ADJUSTMENT OF GAS PRESSURE | 1991 |
|
RU2027931C1 |
| MEASUREMENT PROBE AND DEVICE TO MEASURE LEVEL OF CURRENT CONDUCTIVE MATERIAL | 1991 |
|
RU2067750C1 |
| JOINT FOR PIPES | 1990 |
|
RU2076986C1 |
| MATRIX FOR DRAFT OF POLYMER PIPE | 0 |
|
SU1834809A3 |
| DEVICE AND METHOD OF SEALING THE SPACE BETWEEN MAIN AND INSERTED PIPES | 1997 |
|
RU2165559C2 |
| ROTARY FURNACE FOR PRODUCING SOLID MATERIALS FROM GASEOUS SUBSTANCES | 1994 |
|
RU2111168C1 |
| DISPLACEMENT TRANSDUCER | 1993 |
|
RU2126953C1 |
| METHOD OF SUBSTITUTING PIPE MOUNTING (VERSIONS) AND DEVICE FOR ITS EMBODIMENT | 1997 |
|
RU2166146C2 |
| CONTAINER FOR STORING LOOSE MATERIALS | 0 |
|
SU1147245A3 |
