Everyone is now playing it safe with their pipelines after 22 people died a blast in GAIL network in the KG Basin.
8Even safer product pipelines are not up for scrutiny and testing.
8BPCL for example is planning the pressure testing of its product and PLT lines in West Bengal
8The testing will be carried out on the HSD pipeline from PLT Exchange Pit to HSD A/G Tanks inlet valves TK15, TK16, TK17 with product as per standard procedure at 10.5 Kg/ sq.cm.
The testing procedure will consist of following process:
8HSD and SKO pipelines can be tested with water or product. MS pipelines must be tested with water only. Pipeline quantity has to be sucked in BPCL tanks and it should be filled with water.
Pressure testing shall be carried out on segment wise pipelines.
8During 1st 15 minutes, 25% of max. test pressure 10.5 Kgf /cm2 i.e., 2.6 Kgf/cm2 pressure shall be applied to the pipeline testing. After 30 minutes from starting, pressure will be raised to 50% of max. test pressure during 3rd 15 minutes, i.e, up to 5.25 Kgf/ cm2 and it will be monitored during 4th 15 minutes.
8If everything is found normal, after 1 hour from starting, the pressure should be raised to 75% of max. test pressure during 5th 15 minutes, i.e, up to 7.69 Kgf/ cm2 and it will be monitored during 6th 15 minutes.
8In case no leakage is developed, after 1.5 hours from starting, the pressure will be raised to 100% of max. test pressure during 7th 15 minutes, i.e, up to 10.5 Kgf/ cm2. The pressure and temperature should be monitored for 2 hours from the time full pressure is applied.
8If any leakage is suspected and pressure falls ordoes not sustain, no further pressure shall be applied on the pipeline. Already developed pressure shall be released from test end and and the Maintenance Engineer shall be informed.
8In case of successful testing, pressure has to be released gradually over a period of 30 minutes.
For more details visit indianpetroplus.com
8Even safer product pipelines are not up for scrutiny and testing.
8BPCL for example is planning the pressure testing of its product and PLT lines in West Bengal
8The testing will be carried out on the HSD pipeline from PLT Exchange Pit to HSD A/G Tanks inlet valves TK15, TK16, TK17 with product as per standard procedure at 10.5 Kg/ sq.cm.
The testing procedure will consist of following process:
8HSD and SKO pipelines can be tested with water or product. MS pipelines must be tested with water only. Pipeline quantity has to be sucked in BPCL tanks and it should be filled with water.
Pressure testing shall be carried out on segment wise pipelines.
8During 1st 15 minutes, 25% of max. test pressure 10.5 Kgf /cm2 i.e., 2.6 Kgf/cm2 pressure shall be applied to the pipeline testing. After 30 minutes from starting, pressure will be raised to 50% of max. test pressure during 3rd 15 minutes, i.e, up to 5.25 Kgf/ cm2 and it will be monitored during 4th 15 minutes.
8If everything is found normal, after 1 hour from starting, the pressure should be raised to 75% of max. test pressure during 5th 15 minutes, i.e, up to 7.69 Kgf/ cm2 and it will be monitored during 6th 15 minutes.
8In case no leakage is developed, after 1.5 hours from starting, the pressure will be raised to 100% of max. test pressure during 7th 15 minutes, i.e, up to 10.5 Kgf/ cm2. The pressure and temperature should be monitored for 2 hours from the time full pressure is applied.
8If any leakage is suspected and pressure falls ordoes not sustain, no further pressure shall be applied on the pipeline. Already developed pressure shall be released from test end and and the Maintenance Engineer shall be informed.
8In case of successful testing, pressure has to be released gradually over a period of 30 minutes.
For more details visit indianpetroplus.com
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