Located in London, Harrods is one of the most famous UK department stores, having a long history since its open in 1849. Its domestic hot water pipework was approx. 25-30 years old and was using galvanized steel for the pipeline. Harrods was experiencing clogs and water discoloration problems due to internal corrosion in its tubes supplying hot water throughout the store.
To protect the pipework from internal corrosion, Harrods installed Pipetector PT-150DS on a domestic hot water pipe header, 6 inches in diameter, connected to two plate heat exchangers.
Only 39 days after the installation, iron-ion content in the water was reduced to 0.44 mg/ℓ from 1.294 mg/ℓ; after 47 days, the level decreased to 0.058 mg/ℓ; after 67 days, the level further decreased to 0.022 mg/ℓ, a figure much lower than the British drinking water standard set at 0.2mg/ℓ. It means Pipetector immediately terminated the new formation of corrosion inside the pipework and reduced the existing corrosion to magnetite, which does not dissolve in water. Pipetector will now protect the pipework from any internal corrosion.
|Location||Brompton Road, Knightsbridge, London, UK|
|Building Summary||Department store|
|Installation Date||March 31, 2006|
product model and number
|A 6-inch domestic hot header pipe,|
PT-150DS × 1
Change in iron-ion contents in water
Feb. 6, 2006
|After 39 days|
May 9, 2006
|After 47 days|
May 17, 2006
|After 67 days|
Jun. 6, 2006
drinking water quality standard