Pressure test with water
After installation is complete, the piping must be visually inspected before the public water supply or other water source is connected and the pressure test is performed. The inspection checks whether the water piping is built in accordance with the design documentation, in conformance with the hygiene regulations and the conditions set by the construction permit. Before conducting the pressure test, piping should be flushed with water safe for health and at the same time sludge should be removed from the lowest point. Water pipelines are tested using water safe for health at 1.5 times the operating pressure, however at least 200 kPa. The pressure test itself is carried out in accordance with applicable regulations by the organization that is implementing the construction.


Pressure test with air
The water piping is pressurized with air using a compressor. The pressure test itself is carried out in accordance with applicable regulations by the organization that is implementing the construction. The inspection and the pressure test of the water piping take place in accordance with the regulations in force. Pressure tests are carried out on the laid pipe including all pipe fittings and control devices suitable for the estimated pressure.
