Pipeline extra-dry air drying (at dew point) forms part of the services provided by ITP Service to eliminate any water in pipelines that may remain after the dewatering process and that may accumulate around the wall along the line.

To do that, a number of straight sealing disc pigs and foam pigs are propelled around the interior of the pipeline by extra-dry air on regular intervals. The aim is to achieve the degree of dryness required, measured as the dew point at atmospheric pressure.

Where pigging is not possible, we can dry pipelines through the use of large volumes of extra-dry air.

As an alternative to this drying process using extra-dry air, we at ITP Service also provide a pipeline humidity elimination service using mechanical methods.

Significant projects

NPS 48 INCH X 250 KM TRANSMISSION GAS PIPELINE (INTERCONNECTOR) “BORDER OF BULGARIA”

Client: IDC CONSORTIUM

Country: Serbia

Year: 2020

Scope: 250 km x Ø 48” / 402 km x Ø 48”

Completed works: Hydrostatic pressure testing, extra-dry air drying, Caliper Pig evaluating and nitrogen services.

Pressure testing Extra-dry air drying Pipeline inertisation Caliper Pig

NPS 48 INCH X 41,7 KM BALKAN STREAM BULGARIA SECTION A4 / NPS 48 INCH X 56,8 KM BALKAN STREAM BULGARIA SECTION A5

Client: BONATTI SPA

Country: Bulgaria

Year: 2020

Scope: 98.5 km x NPS Ø 48”

Completed works: Hydrostatic pressure testing, extra-dry air drying and pneumatic testing of stations and valves.

Pressure testing Extra-dry air drying Pneumatic test

TRANS ADRIATIC PIPELINE PROJECT – LOT 2 & 3 48”

Client: BONATTI

Country: Greece

Year: 2018 - 2019

Scope: 366 km x Ø 48”

Completed works: Hydrostatic pressure testing, extra-dry air drying, Caliper Pig evaluating and nitrogen services.

Pressure testing Extra-dry air drying Pipeline inertisation Caliper Pig

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