Services > Pressure testing > Pneumatic test
The pneumatic test is an alternative procedure that replaces the hydrostatic test for the performance on pipelines that cannot or are not allowed to be filled with water. A pneumatic test implies that the fluid used is a gas, usually air or an inert gas such as nitrogen.
A pneumatic test is more dangerous than a hydrostatic test due to the higher accumulative energy content of a compressed gas, and this type of test is limited to lower pressures or smaller systems.
For testing large high-pressure systems, a low-pressure pneumatic test can be used as a leak test to detect leaks after the entire system has been assembled.
We at ITP Service use a Booster (up to 350 bar) and on-site nitrogen generator by membranes.
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