Maudsley Hospital

With a capacity of 250 beds, Maudsley Hospital is an NHS Foundation Trust psychiatric hospital located in South London.

The hospital has two independent domestic hot water systems; one with a hot water cylinder and the other with two such cylinders connected to each other via hot water pipe.

To protect both pipe systems from internal corrosion and single-cell bacteria, the hospital installed one Pipetector PT-50DS on the former piping and one Pipetector PT75-DS on the latter piping on March 9th, 2007.

After 15 weeks, the average iron-ion level in the hot water was considerably reduced from 13.824 mg/l to 1.3882 mg/l, and further dropped to 0.4762 mg/l after 31 weeks, and 0.3428 mg/l after 49 weeks.

All the iron-ion levels in the water are much lower than before. These results indicate Pipetector terminated the new formation of corrosion inside the pipework and reduced the existing corrosion into magnetite, which does not dissolve in water. Pipetector will now protect the pipes from any internal corrosion as long as the lifespan of the hospital.