VESBO® KLIMASU PP-R for chilled and hot water recticulation systems
VESBO® KLIMASU PP-R pipes and fittings are highly suitable and commonly used by installers for the distributor of chilled and heating systems.
VESBO® KLIMASU PP-R pipes and fittings are manufactured from high quality Polypropylene Random Copolymer (PP-R Type 3), with raw material having low melt flow rate , high molecular weight and good flexibilty.
PP-R Type-3 has higher performance and superior qualities than Type-1 (PP-H) and Type-2 (PP-B) raw materials for the purposes of physical and chemical characteristics for specific applications. It is generally a more versatile material.
VESBO® KLIMASU PP-R’s structure when reinforced with some additives provides high impact strength and resistance to low or high temperatures depending on whether it is chilled or heating applications.
With clear advantages, VESBO® KLIMASU PP-R pipes and fittings are increasingly offered as a solution in chilled and heating systems over metal pipes made of copper, galvanized steel or stainless steel.
Under external conditions, its temperature and impact resistance range is between -20°C to 95°C. For chilled water systems, where cold water distributed is in the temperature range of 4°C to 8°C, VESBO® KLIMASU PP-R is a choice material to use. It is an ideal pipe system especially for close system where corrosion and leakage is not acceptable.
For hot water reticulation systems for either centralized hot water system or heat radiating system where water temperature ranges from 50°C to 70°C VESBO® Klimasu or standard PP-R or Stable PP-R pipes can be used. Depending on application, your local distributor can advise you further. When used at appropriate pressure and temperature values, useful life of VESBO® KLIMASU PP-R pipes and fittings are more than 50 years.
Insulation in Chilled Water Systems
In chilled water distribution, insulation has to be applied on VESBO® KLIMASU PP-R pipes and fittings so as to prevent condensation as well as maintaining the required temperature that is appropriate for the chilled water system.
Efficiency of insulation material is measured in W/(m°K) or watts per metre-kelvin, which is reffered as a K value. As a temperature difference of 1K = a temperature difference of 1°C, K is the rate of heat loss in watts across a 1 metre thickness of the material, per square metre of area, per degree Celsius of temperature difference between the two sides of the material.
Polyeurathane’s K–value is 0.028 W/(m°k). The lower the K-value for a material, the better it insulates. Insulation material commonly used currently and suggested are hard foam Polyeurathane with a galvanized sheet jacket or plastic PE jacket as shown below.
|Recommended Insulation Thickness|
|OD(mm)||Materials and Layers||PE Overcoat OD(mm) x S(mm)||PUR Isolation Thickness(mm)|
|ø 20||PP-R Pipe, PUR Insulation, PE/GS Jacket||75 x 2.2||25.3|
|ø 25||75 x 2.2||22.8|
|ø 32||90 x 2.2||26.8|
|ø 40||110 x 2.5||32.5|
|ø 50||110 x 2.5||27.5|
|ø 63||125 x 2.5||28.5|
|ø 75||140 x 3||29.5|
|ø 90||160 x 3||32.0|
|ø 110||200 x 3.2||41.8|
|ø 125||200 x 3.2||34.3|
|ø 160||225 x 3.5||29.0|
VESBO® KLIMASU PP-R pipes and fittings are available in 2 pressure ratings.
Pipe Length: Standard 4m. Other lengths available on customer’s requirements.
Colour: RAL 7032 / Light Grey
|PN 10, SDR 11, S5||PN 16, SDR 7.4, S3.2||DN(mm)|
Mechanical & Thermal Properties
|VESBO® KLIMASU PP-R|
|Density at 23°||gr/cm3||0, 900|
|MFI 190/5||g/10min||0, 5|
|Tensile Stress at Yield||Mpa||25|
|Elongation at Break||%||>50|
|Modulus of Elasticity, Tensile Test||N/mm2||900 – 1300|
|Coefficient of Linear Thermal Expansion||K-1||1.5×10-4|
|Thermal Conductivity at 20°||W/mk||0, 24|
|Specific Heat at 20°||kj/kg k||2, 0|