It is applied for sealing of welded side pipe nipples of DN= 150 mm for the use of ensuring disassembly of a gate valve.
The device is fastened with the flange on the gate valve of the disassembled side pipe nipple. The removable sealing cap is entered through the gate valve into a side pipe nipple and fixed sealably in it. Further the gate valve together with the device is dismantled, and on the flange of the side pipe nipple a metal cap is established.
| Technical characteristics | |
| Nominal inside diameter of the dismantled gate valve | 150 mm |
| Pressure in the pipeline during dismantling | 1 MPa |
| Pressure in the pipeline after dismantling | 6,3 MPa |
| Overall dimensions, mm | 1670х340х340 |
| Weight | 55 kg |
