There are many different technologies that many different manufacturers use to try and create the elusive non-adhering lime. However, Zinc has always been the preferred. The BIG problem has always been fouling. Our patent is there to stop the fouling from happening.
The PW-NPI uses a galvanic and electrolytic solution which is combined with our patented self-cleaning agitators. This means that the tiny amounts of zinc ions that are released react with the calcite ions to create non-adhering lime.
Domestic and industrial users get the same technology and are built to the same standard. For same reason, this is a UAM (Universal Apply Method).
Zinc sacrificial anode functions as a galvanic element, in order to turn the aggressive lime scale into neutral, non-adhering lime.
What is different with PW-NPI is that it operates without electricity, chemicals or magnets. The agitators up and downstream agitate the water causing the self-cleaning function of the units themselves. NPI is not perfect but will efficiency stop 95% of lime scale from hard damaging deposits.
Water softeners replace calcium & magnesium ions with sodium ions (salt) to soften the water. This can cause pitting and pinhole corrosion within water systems.
Water conditioning devices have a long list of unhappy customers due to poor design, understanding and design quality.
The PW-NPI solution has been independently tested and proven to reduce lime scale in water systems, offering savings of up to 55% of energy costs.
Payback can be very fast, due to the wide spectrum of savings in chemical remedial work and costs associated with water heating. In addition appliances last longer.
Due to the fact that over 75% of the mains water supplied in the US is classified as “hard Water”. Lime scale build up on heat transfer surfaces, internal pipework surfaces and other components create costly and unhygienic problems. Lime scale deposits reduce the efficiency of waterheating appliances and plumbing systems, increasing running costs and can harbor bacteria on outlets.
Ready to make a difference with our water vending machines? Purewater1 is one of the leading suppliers of water purifier machine in California? Contact Pure water 1 today to discuss your requirements and take a step towards a cleaner, more sustainable future.
British Water calculates that every 1.6mm or 1/16” of scale in a heating system causes a 12% loss in heating efficiency.
The Carbon Trust also found: “A 1mm layer of lime scale will cause a 7% increase in energy input to the boiler to meet the same heat demand”
Problem:
Solution Approach:
Water treatment using galvanic element (PW-NPI)
The PW-NPI:
Zinc sacrificial anode functions as galvanic element, in order to turn the aggressive limescale into neutral, non-adhering lime.
Corrosion protection zinc anode → is oxidised before the other metals
Both heating devices (new condition) are used to heat the injection moulding tools at the Arburg machine. Device 1 heats the ejection side, device 2 the nozzle side. The first heating device is supplied directly with process water. The galvanic element is installed between the process water supply and the second heating device.
Production is carried out with this setup for approx. half a year and then the heating devices are checked for limescale and corrosion
Deposits are present on the heating rods in both heating devices. In the unprotected device, however, which is connected directly to the process water mains, substantially more deposits have formed, and the layers of these are also thicker.
The use of NPI reduces the area of deposit and above all the thickness of the layers of deposit. The deposits are, however, not entirely prevented.
An improvement over pure process water was proven and so extension to the entire technical centre is to be recommended.(systems heated with process water)
In addition to the savings to be expected on energy costs, other reductions in costs are also likely, as a result of decreased component failures (valves).
It is questionable as to whether process water can be used in combination with NPI for present-day devices heated with demineralised water.
→ Suggestion: after the heating devices are cleaned, use the same test setup and method with demineralised water and process water + NPI.
For more information and free consultation, please call our customer service.
