ScaleStop

Overview
Technical Specifications (PDF)

Overview

ScaleStop Physical Water Conditioner is for treatment of hard water and the reduction of limescale in domestic water services.

For Dwellings     -     Commercial Premises     -      Process Water

ScaleStop System

ScaleStop comprises a pressure vessel partially filled with a media through which the cold water supply is passed using simple inlet and outlet connections. The vessel is bottom fed so that it fluidises the media bed.

Sub microscopic particles of scale form spontaneously in the water due to the media and remain suspended as it flows from the vessel. When the water is later heated, the same particles act as highly efficient nucleation seeds for the formation of further scale, thus stopping it encrusting surfaces. As well as minimising scale encrustation, ScaleStop is also capable of removing existing encrusted deposits.

Efficiency

ScaleStop is extraordinarily efficient because it requires no electrical power, magnets or other form of energy. It consumes no chemicals or additives and it generates no waste. It is self re-generating and completely self contained.

Maintenance and Servicing

There is no requirment for maintenance or servicing under normal mains supply conditions. The life of the media will be determined by the amount of contaminants in the water supply. The media is warranted for a period of two years from the date of installation.

Statutory Compliance

ScaleStop media is WRAS approved. (0705509).

Effectiveness

The only recognised measure of the effectivness of PWC's is the German performance test DVGW-W5 12. The result of the test is a score as a percentage reduction of scaling between treated and untreated heaters. ScaleStop has achieved a near perfect score of 99.6%. The pass percentage for W-512 is 80%. None of the PWC's commonly specified in the UK have passed W-512.

*Further information on W-512 is available here.

Location

ScaleStop vessels should be installed on the cold water service. Where a break tank is installed, it is preferable to locate the ScaleStop downstream of the tank and booster set. Treatment before the tank is acceptable. The vessel must be installed vertically. The treated water is fully potable.

Sizing

ScaleStop vessels may be installed as single or as matched multiple united to meet any flow requirements. There is no minimum flow rate.

The maximum service flow is the maximum flow at which full treatment effectiveness can be maintained. Brief periods of higher flows can be accommodated with minimal impact on performance. Pressure loss at maximum flow rate < 0.1 Bar.

Temperature and Pressure

Water temperature	minimum 5°C
	maximum 44°C
Water pressure	minimum 1 bar
	maximum 10 bar

Water Chemistry Parameters

Ferrous Iron	< 300 ppb
Manganese	< 50 ppb
Copper	< 1300 ppb
pH	6.5 to 8.5
Total Hardness (max)	1,300 ppm
Chlorine	Less than 3 ppm in normal usage but shock treatment is acceptable
Chlorine Dioxide	No limit