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Thistle Westminster Hotel

Located in Victoria, London, Thistle Westminster Hotel is one of the deluxe modern hotels with 134 guest rooms managed by Land Securities, a leading property company in the UK.

To protect the hotel’s hot water pipework, the hotel installed two Pipetector PT-75DS on its independent domestic hot water headers supplying hot water throughout the hotel.

24 days after the installation, water’s average iron content considerably decreased to 0.028 mg/ℓ from 1.463 mg/ℓ, and 0.0145 mg/ℓ after 35 days, and then to 0.01 mg/ℓ after 150 days.

The iron levels are all much lower than the British standard for drinking water set at 0.2 mg/ℓ. These results indicate Pipetector immediately terminated the new formation of corrosion inside the pipework and reduced existing corrosion into magnetite, which does not dissolve in water. Continuous use of Pipetector will protect the pipework from any internal corrosion as long as the building’s lifespan.

Installation Summary

BuildingThistle Westminster Hotel
LocationBuckingham Palace Road, London SW1W 0QT, UK
ProfileA hotel with 134 guest rooms
Installation dateJanuary 5, 2007
Installation location,
model and number
3-inch hot water supply pipe made with galvanized steel. PT-75DS × 1
3.5-inch hot water supply pipe made with galvanized steel. PT-75DS x 1

Change in iron contents in the hot water

Change in iron contents in the hot water
Before
installation
Dec. 29,
2006
After 24 days
Jan. 29, 2007
After 35 days
Feb. 9, 2007
After 150 days
Jun. 4, 2007
British
standard for
drinking
water
Iron
content
(mg/L)
1.65
(R101)
0.009
(lowest)
(R101)
0.013
(R102)
0.016
(R101)
0.2
1.52
(lowest)
(R131)
0.057
(highest)
(R130)
<0.007(lowest)
(1st floor)
0.016
(highest)
(R101)
0.522
(R201)
0.019
(R210)
0.017
(R201)
0.008
(R210)
2.16
(highest)
(R231)
0.015
(R245)
0.021 (highest)
(R229)
0.009
(R210)
0.008
(R245)
0.007
(lowest)
(R245)
Average
(mg/l)
1.4630.0250.01450.01

Certificate of water quality testing

Certificate of water quality testing
Before Installation
Certificate of water quality testing
24 Days After Installation
Certificate of water quality testing
35 Days After Installation
Certificate of water quality testing
150 Days After Installation

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