Hydraulic locks with rubber-cord casings (pneumatic plugs)
Hydraulic locks with rubber-cord covers for overlapping of pipelines with a diameter from 65 to 1800 mm, at carrying out repair and restoration and commissioning works on water supply, sewer and thermal networks.
Hydraulic lock (sealer PDD) it is an elastic casing, reinforced with high-strength cord, containing a cylindrical, two end parts and a valve for supplying compressed air. Inflating of the hydraulic lock’s casing is provided by giving into it compressed air from a compressor or a gas-cylinder. Hydraulic locks can be installed through wells or special operating apertures in pipes and work at the temperature of the liquid pumped over on the pipeline, from 0 to 90° С. For use in the sewer network of petrochemical companies manufactured hydraulic locks in oil-resistant performance.
The design and manufacturing technology of hydraulic locks are patented.
Hydraulic locks are issued on TU 2527-004-23770232-2004.
Production catalogue.pdf
Scheme of disconnection of the damaged section of the pipeline
Mark hydraulic lock
Diameter of the overlapped tubes, mm
Water pressure held by the hydraulic lock in the pipe of maximum diameter, MPa
Nominal air pressure in the hydraulic lock shell, MPa
Dimensions of the hydraulic lock shell in the free state, (diameter / length), mm
GM-1
65 - 120
0,60
1
60/200
Hydraulic lock GM-1
Diameter of the overlapped tubes, mm
65 - 120
Water pressure held by the hydraulic lock in the pipe of maximum diameter, MPa
0,60
Nominal air pressure in the hydraulic lock shell, MPa
1
Dimensions of the hydraulic lock shell in the free state, (diameter / length), mm
60/200
Details
GM-22
100 - 200
0,45
1
95/420
Hydraulic lock GM-22
Diameter of the overlapped tubes, mm
100 - 200
Water pressure held by the hydraulic lock in the pipe of maximum diameter, MPa
0,45
Nominal air pressure in the hydraulic lock shell, MPa
1
Dimensions of the hydraulic lock shell in the free state, (diameter / length), mm
95/420
Details
GM-3
200 - 360
0,20
0,60
186/500
Hydraulic lock GM-3
Diameter of the overlapped tubes, mm
200 - 360
Water pressure held by the hydraulic lock in the pipe of maximum diameter, MPa
0,20
Nominal air pressure in the hydraulic lock shell, MPa
0,60
Dimensions of the hydraulic lock shell in the free state, (diameter / length), mm
186/500
Details
GS-1
300 - 500
0,15
0,50
280/700
Hydraulic lock GS-1
Diameter of the overlapped tubes, mm
300 - 500
Water pressure held by the hydraulic lock in the pipe of maximum diameter, MPa
0,15
Nominal air pressure in the hydraulic lock shell, MPa
0,50
Dimensions of the hydraulic lock shell in the free state, (diameter / length), mm
280/700
Details
GS-11
450 - 700
0,07
0,40
430/730
Hydraulic lock GS-11
Diameter of the overlapped tubes, mm
450 - 700
Water pressure held by the hydraulic lock in the pipe of maximum diameter, MPa
0,07
Nominal air pressure in the hydraulic lock shell, MPa
0,40
Dimensions of the hydraulic lock shell in the free state, (diameter / length), mm
430/730
Details
GS-21
600 - 800
0,12
0,43
580/900
Hydraulic lock GS-21
Diameter of the overlapped tubes, mm
600 - 800
Water pressure held by the hydraulic lock in the pipe of maximum diameter, MPa
0,12
Nominal air pressure in the hydraulic lock shell, MPa
0,43
Dimensions of the hydraulic lock shell in the free state, (diameter / length), mm
580/900
Details
GB-11
600 - 1000
0,03
0,30
580/900
Hydraulic lock GB-11
Diameter of the overlapped tubes, mm
600 - 1000
Water pressure held by the hydraulic lock in the pipe of maximum diameter, MPa
0,03
Nominal air pressure in the hydraulic lock shell, MPa
0,30
Dimensions of the hydraulic lock shell in the free state, (diameter / length), mm
580/900
Details
GB-12
600 - 1000
0,04
0,40
580/900
Hydraulic lock GB-12
Diameter of the overlapped tubes, mm
600 - 1000
Water pressure held by the hydraulic lock in the pipe of maximum diameter, MPa
0,04
Nominal air pressure in the hydraulic lock shell, MPa
0,40
Dimensions of the hydraulic lock shell in the free state, (diameter / length), mm
580/900
Details
GB-13
600 - 1000
0,10
0,30
580/1400
Hydraulic lock GB-13
Diameter of the overlapped tubes, mm
600 - 1000
Water pressure held by the hydraulic lock in the pipe of maximum diameter, MPa
0,10
Nominal air pressure in the hydraulic lock shell, MPa
0,30
Dimensions of the hydraulic lock shell in the free state, (diameter / length), mm
580/1400
Details
GB-14
600 - 1000
0,16
0,50
580/1400
Hydraulic lock GB-14
Diameter of the overlapped tubes, mm
600 - 1000
Water pressure held by the hydraulic lock in the pipe of maximum diameter, MPa
0,16
Nominal air pressure in the hydraulic lock shell, MPa
0,50
Dimensions of the hydraulic lock shell in the free state, (diameter / length), mm
580/1400
Details
GB-21
800 - 1200
0,05
0,25
784/1270
Hydraulic lock GB-21
Diameter of the overlapped tubes, mm
800 - 1200
Water pressure held by the hydraulic lock in the pipe of maximum diameter, MPa
0,05
Nominal air pressure in the hydraulic lock shell, MPa
0,25
Dimensions of the hydraulic lock shell in the free state, (diameter / length), mm
784/1270
Details
GB-22
800 - 1400
0,035
0,4
784/1270
Hydraulic lock GB-22
Diameter of the overlapped tubes, mm
800 - 1400
Water pressure held by the hydraulic lock in the pipe of maximum diameter, MPa
0,035
Nominal air pressure in the hydraulic lock shell, MPa
0,4
Dimensions of the hydraulic lock shell in the free state, (diameter / length), mm
784/1270
Details
GB-23
800 - 1200
0,10
0,25
784/1770
Hydraulic lock GB-23
Diameter of the overlapped tubes, mm
800 - 1200
Water pressure held by the hydraulic lock in the pipe of maximum diameter, MPa
0,10
Nominal air pressure in the hydraulic lock shell, MPa
0,25
Dimensions of the hydraulic lock shell in the free state, (diameter / length), mm
784/1770
Details
GB-24
800 - 1500
0,05
0,28
784/1770
Hydraulic lock GB-24
Diameter of the overlapped tubes, mm
800 - 1500
Water pressure held by the hydraulic lock in the pipe of maximum diameter, MPa
0,05
Nominal air pressure in the hydraulic lock shell, MPa
0,28
Dimensions of the hydraulic lock shell in the free state, (diameter / length), mm
784/1770
Details
GB-25
1000 - 1500
0,05
0,28
975/1350
Hydraulic lock GB-25
Diameter of the overlapped tubes, mm
1000 - 1500
Water pressure held by the hydraulic lock in the pipe of maximum diameter, MPa
0,05
Nominal air pressure in the hydraulic lock shell, MPa
0,28
Dimensions of the hydraulic lock shell in the free state, (diameter / length), mm
975/1350
Details
GB-26
1000 - 1600
0,03
0,3
975/1350
Hydraulic lock GB-26
Diameter of the overlapped tubes, mm
1000 - 1600
Water pressure held by the hydraulic lock in the pipe of maximum diameter, MPa
0,03
Nominal air pressure in the hydraulic lock shell, MPa
0,3
Dimensions of the hydraulic lock shell in the free state, (diameter / length), mm
975/1350
Details
GB-27
1000 - 1800
0,03
0,23
975/1800
Hydraulic lock GB-27
Diameter of the overlapped tubes, mm
1000 - 1800
Water pressure held by the hydraulic lock in the pipe of maximum diameter, MPa
0,03
Nominal air pressure in the hydraulic lock shell, MPa
0,23
Dimensions of the hydraulic lock shell in the free state, (diameter / length), mm
975/1800
Details
The nominal air pressure in the shells of hydraulic valves is determined from the calculation of ensuring the safety factor of the shell not less than twice, in the pipe of the maximum diameter.
road transport — 3 workday;
air transport — 3 workday;
railway baggage — 3 workday;
