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Why use Pre-insulated Pipes?

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What do we understand from pre-insulated pipes?

Pre-insulated pipe consists of three parts: Carrier pipe which is typically made of steel, Insulation layer of polyurethane foam with high insulation qualities and the outer casing of high density polyethylene.

Overall, it is a complete fully bonded system consisting of pre-insulated pipes, fittings and valves and casing joints. The pre-insulated pipe system secures an energy efficient system that as a buried system will have an estimated life time of minimum 50 years.

The pre-insulated pipes system will minimize the heat gain to the lowest possible. 

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Where do we use pre-insulated pipes?

Pre-insulated pipes are ideal solutions to supply cooling water from central District cooling production units directly to one or more consumers such as industrial, commercial, and residential user.

Applications of pre insulated pipe systems also include District heating, chemical, pharmaceutical, petrochemical, and food industries mainly for transporting wastewater, cooling water, hot water, oil and other medias.

Why switch to District cooling instead of the traditional air condition units?

The conventional air conditioning requires a high level of power consumption but generates only a modest level of cooling. Modern District cooling systems pave the way for significant improvements in the areas of comfort, efficiency, and environmental consideration in connection with the furnishing and operation of all kinds of modern buildings.

Moreover, District cooling is fully more than 2 times as efficient as conventional air conditioning. As District cooling progressively replaces electrically powered cooling, it will simultaneously eliminate the huge load placed on the electricity grid when the need for cooling is high.

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Why choose Kingspan Pre-insulated pipes for District cooling?

Kingspan provides a comprehensive range of pipes and components, designed to meet virtually all your District cooling requirements. The piping system shall be supplied as pre-insulated bonded carbon steel pipes with Polyurethane Foam Insulation (PUR) and with a High Density Polyethylene (HDPE) outer casing.

What codes and standards do we follow at Kingspan?

Kingspan manufactures its product range for district cooling strictly in compliance with EN17415-1, EN17415-2, EN17415-3, EN489 and other relevant standards, which will ensure a technical lifetime of minimum 50 years when designed and installed correctly.

What do we understand by EN 17415-1?

District cooling Pipes-Bonded single pipe systems for directly buried cold water networks – factory made pipe assembly of steel or plastic service pipe, polyurethane thermal insulation, and a casing of polyethylene.

What do we mean when we say casing joints in accordance with EN 489-1?

All welded joints and heat shrink sealed Joints for underground pre-insulated pipe networks shall be tested and approved by independent testing institute in a so-called type test. The type test is the documentation that the specific joint system is compliant to all requirements in EN489-1.

Type test of welded joint include the following tests:

  1. Polyurethane (PUR) foam thermal stability
  2. Water tightness
  3. Stress crack resistance
  4. Bending test on welded plug
  5. Melt mass-flow rate of welded plug

Additional to this type test we are testing our weld joints according to:

  1. Soil stress test (Sand Box test)
  2. Water tightness test (after soil stress test)
  3. Polyurethane thermal stability
  4. Bending test on welded plug
  5. Melt mass-flow rate of welded plug

Type test shrinkable sealed joint include the following test:

  1. Polyurethane (PUR) foam thermal stability
  2. Soil stress test (Sand Box test)
  3. Water tightness (after soil stress test)
  4. Bending test on welded plug
  5. Melt mass-flow rate of welded plug

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