Blue gold. Stop water loss now
24Pages

Blue gold. Stop water loss now.

CONTENTS Lost water: non-revenue water How much water is lost? District metered areas Leak detection Pipe repair Network monitoring Pressure management

Lost water NONREVEN WATE

As temperatures rise and rain becomes sparse, water grows scarce around the globe. Yet nearly one third of our valuable drinking water is lost without being used.

Lost water NONREVENUE WATER Year after year, we lose huge quantities of clean water on the way to the tap. This water loss is also called “non-revenue water” (NRW) as it means a loss of revenue for the suppliers. It is mainly caused by leakage, but water theft also plays a role. EXTRACTED WATER INVOICED WATER When we stop valuable water from simply trickling away, everyone benefits. Water prices can be lowered while supply security is improved. As a consequence, more people have access to clean water at all times. For water suppliers, the investment will usually pay off quickly. The first...

WATE WASS The water running from our taps has often come a long way. After being extracted, it passes through treatment plants, pumping stations, reservoirs, and mile after mile of pipelines which, while robust, are not made to last forever. And whether caused by dripping pipes, pipe breaks, or theft: each water loss will entail cost.

All over the world, extreme weather conditions and rising temperatures contribute to water scarcity. At the same time, global water consumption is increasing by 1%1 every year. As a result, limited reserves are already overexploited in many places. PRESSURE 5 BAR Hole diameter (mm) Want to know how much water is lost because of a hole in the pipe? Try our leak calculator!

CROATIA 66% NORWAY 32% SLOVAKIA 29% SPAIN 25% RUSSIA 24% NEW ZEALAND 21% POLAND 17% AUSTRIA 13% DENMARK 7% GERMANY 5% Yet an immense amount of clean water trickles away long before reaching its destination. Therefore, water companies worldwide do not get paid for an average of 30% of the water supplied by them 2. Internationally speaking, the respective values vary greatly: from approx. 6% of NRW in the Netherlands to more than 60% in Croatia. The value for Austria is currently 13%. Therefore, it’s high time to take action. To protect our water supply, we have to renew obsolete networks and...

SOLUT Water losses cannot be completely prevented but can be significantly reduced. Thus, the resource of water is preserved, and costs are saved in the long run. A number of solutions are available for water suppliers to draw on.

SOLUTIONS Due to modern water meters and measuring devices, water suppliers can quickly and precisely spot any leaks. Modern repair solutions are both easy and quick to apply and also flexible to use. ACTIVE LEAK MONITORING QUICKNESS AND QUALITY OF REPAIR Other important aspects are regular maintenance, an intelligent pressure management, and a timely renewal of pipes and valves. And last but not least, smart hydrant caps will discourage water thieves. PRESSURE MANAGEMENT INFRASTRUCTURE MANAGEMENT Maintenance, exchange, rehabilitation Efficient leak detection Usually, the water...

District metered areas District metered areas facilitate leak detection for water suppliers. To this end, they use gate valves to subdivide their pipeline systems into smaller sections, each of which should ideally have only one supply line. Each supply line is equipped with a water meter. Measurements are taken by night when consumption is at its lowest and steadiest. A sudden increase in consumption during nighttime measurement suggests a new leak in this supply section. Gate valves & Combi valves Hawle E3 series Hawle gate valves are excellently suited for closing off and isolating pipe...

Leak detection Since water pipelines run underground, leaks are seldom visible. However, they cause characteristic noises, which can be turned to account for leak detection. For generally monitoring and roughly locating leaks, so-called noise loggers are used. If there is a leak between two noise loggers, they will record the same noise but not at the same time. This allows a rough calculation of the position. To pinpoint the leak, the service teams will use electronic listening sticks and ground microphones which they touch directly to pipes and vavles. They may also move a camera through...

Pipe repair Many water supply networks are very old and thus prone to leaks. But even newer pipes can leak or burst because of inferior materials, incorrect installation, design errors, or natural disasters. While pipe bursts in water mains may be dramatic, they also occur in supply lines and service lines. And yet, when it comes to repair, service pipes are often not in the focus of interest. In fact, in many cases, they are downright neglected. Repair and renewal of pipelines Quality repair will reduce water loss permanently. By means of pipe repair clamps, fitters can seal small holes in...

Repair and renewal of water mains Leaks In case of leaks in water mains there is a risk of enormous damage to infrastructure and buildings. In this case, therefore, every minute counts. Nova Siria offers multi-range couplings and flange adaptors for large diameters, both restraint or nonrestraint options are available. Nova Siria Duofit Repair without interrupting water supply. Reliable and corrosion-resistant repair couplings for the quick and easy repair of large pipelines (up to max. DN 2000, larger on request) of all common materials. Custom products possible. When repairing damaged...

Leaks in service lines In the long run, leaking service lines often cause substantial water losses. As several pipes of different materials and sizes are connected here, small leaks may occur that are hard to spot. Because of the small pipe dimension and the low pressure, the noise caused by these leaks is so low that it cannot be detected by a noise logger. Therefore, water suppliers will exchange service lines after some time. Such exchange will take place within the scope of replacement schemes or renovation work and will simultaneously reduce leakage, line breakage, and maintenance...