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iGRID Pressure Zone

Improve pressure in your grid

In district heating grids, large centralised pumps need to generate high pressure in order to deliver necessary flow to large parts of the grid, and at the same time satisfy the minimum pressure requirement at critical points. This presents a problem of excessive pressure close to main pumps and often too low pressure in other parts of the grid, especially where there is no real-time pressure feedback.

Distribute pressure based on actual demand

The iGRID Pressure Zone makes it possible to customise the pressure according to the actual demands in the grid. Hence, too high pressure level from the pumps can be avoided while the overall pressure in the grid is substantially reduced. 

Consequently, the pressure class for pipes and other components used in the grid is lowered while the lifetime of installations is extended. Moreover, the friction loss inside the pipes is reduced and the risk of leakages is minimised.

 

Improve pressure control and reduce costs

The iGRID Pressure Zone together with iGRID Measure Points and/or iGRID Bypasses, makes it possible to implement demand-driven control based on real-time data in critical parts of the grid. This ensures a supply of exactly the differential pressure needed without adding the typical safety margin. Overall, your pump energy costs will be reduced! 

A plug’n’pump solution customized according to your needs

The iGRID Pressure Zone is a plug’n’pump solution, built in a modular way, which can be delivered in a pit under the ground, in a cabinet above the ground or on a skid to be placed in a technical room. The iGRID Pressure Zone comes with the following pre-assembled components as standard:

• Insulated inlet and outlet connection pipes 

• Isolating valves 

• Non-return valves (multiple pump version) 

• Pump (or pumps) including control unit 

• Pressure sensors (single point sensors)

iGRID Pressure Zone

If you want to know more about the iGRID Pressure Zone, read more here.

Facts

Water loss

Globally an average of 30% of all pumped water never reaches the tap. In cities the average is even higher and can reach 60%. This water is lost due to both leakages and theft. A few examples of non-revenue water (NRW) per country are: United Kingdom 21%, Mexico 40%, United States 20%, Sweden 40%, Liberia 49%, Armenia 89%, China 21% and Venezuela 62%.

Source: Quantifying the global non-revenue water problem, R. Liemberger and A. Wyatt

Water demand

Today, more than 2 billion people are living with the risk of reduced access to freshwater sources. By 2050 the global water demand could be 30% higher than it is today. 

Sources: United Nations Sustainable Development Goal 6, UNWD Report 2018

Urbanisation

By 2050, an additional 2.5 billion people are expected to live in cities, which accounts for 70% of the population. 90% of this increase is expected to take place in Africa and Asia.

Source: United Nations Department of Economic and Social Affairs

Solutions in action

Although cities around the world are under a lot of pressure, there are intelligent solutions available for better, more efficient, more sustainable water management. Some of these solutions are already in action, like water treatment, water reuse and demand-driven distribution which is ensuring optimal water pressure and flow and minimising pipe bursts for towns and cities all over the globe.

Ningbo doses safely and accurately for 1.5 million citizens

10 years ago, a lake water plant in the Chinese city of Ningbo needed help pumping the dangerous compound sodium hypochlorite. Today, the Grundfos dosing pumps implemented are still going strong and guaranteeing safe water for 1.5 million citizens. 

Water plant enjoys 20% energy + water savings 

In the Cambodian province of Takéo, a water supply company was struggling to supply drinking water to the small city of Doun Kaev and the surrounding 45 villages. After teaming up with Grundfos, an intelligent demand driven water supply solution solved the problem and cut water losses by 13% and pipe bursts by 29% giving villagers reliable water supply 24/7.

Pump gates bring new flow to Fuzhou’s rivers

Fuzhou, a large city in China, has had problems with dirty, odorous water in its rivers and canals for decades. A series of Grundfos pump gates brought flow once again to the water. This solution eradicated the smelly, polluted water, creating a better living environment along the populated riversides.

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