PAROC Pro Lock simulates overlapping double layers in one application – saving time and money

Insulation for pipes used in manufacturing and process industry 

There are a great number of opportunities within the industrial sector for reducing heat losses. Far too often, specifications from previous projects that are decades out of date are simply adopted without prior consideration. Better insulation for industrial processes offers many advantages: energy and costs are saved, CO2 emissions are reduced and processes are undertaken in a more efficient way. 

Steam and other hot fluids are often channeled through pipelines and installations in industrial plants. For optimal production processes, it is usually desirable that the heat generated is retained. If pipelines and installations are not insulated correctly, heat is lost and significantly more energy is required to maintain the necessary temperature level. Insufficient maintenance of process insulation can also lead to large heat losses on a yearly basis. High amounts of heat and energy are required for most industrial processes. Within the European Union, the industrial sector accounts for over 27% of final energy consumption. 

Optimization of energy consumption within industrial plants is therefore essential. In every industrial process or plant, owners and operators strive to make investments which will guarantee optimal functionality and efficiency and generate the greatest possible profits. 

When operating temperatures exceed 250°C, or required thickness exceeds 160 mm, overlapping double layer insulation is required. Paroc offers double layer solutions, but through innovation also offers its Pro Lock option, which simulates overlapping double layers in one application. 

Industrial pipelines are insulated efficiently using the PAROC Pro Lock industrial pipe section. Expansions of the pipeline at high temperatures are offset by the z-lock cut into the ends and down the length of the section, and heat losses are reduced by up to 25%. Compatible double layer segments may be used for pipe bends, which guarantee optimal insulation for the entire pipeline.

PAROC Pro Lock WR 100 – for long service at up to 350°C. For higher temperatures use PAROC Pro Lock WR 140.

Technical properties

  • Harmonised standard: EN 14303:2009+A1:2013
  • Thermal Conductivity (declared) at 50°C, λ50: 0.040 W/mK
  • Thermal Conductivity (declared) at 100°C, λ100: 0.046 W/mK
  • Thermal Conductivity (declared) at 200°C, λ200: 0.064 W/mK
  • Thermal Conductivity (declared) at 300°C, λ300: 0.092 W/mK
  • Reaction to Fire Euroclass: A1L
  • Water absorption, Short-term WS, Wp: ≤ 1 kg/m²
  • Chloride ions, Cl- <10 ppm
  • Maximum Service Temperature – Dimensional Stability: 640°C
  • Dimensions (in accordance with EN 13467)
  • Thickness: 80-160 mm
  • Inner diameter: 219-914 mm

Paroc is one of Europe’s leading manufacturers of energy-efficient insulation solutions for new and renovated buildings, marine and offshore, acoustics and other industrial applications. Throughout its over 75-year history, the Finnish supplier has built a reputation for innovation, product performance, technical expertise and sustainability. Paroc aims to remain an innovative and trusted partner for a sustainable built environment.

Paroc employs around 2,020 people in its production plants in Finland, Sweden, Lithuania and Poland and Russia and in sales offices in 14 European countries.


About Us

Paroc is one of Europe’s leading manufacturers of energy-efficient and fire-proof insulation solutions. Throughout our 80-year history, we have brought innovation to the residential and industrial building industry and have earned a reputation for high product performance, technical expertise and sustainability. Our aim is to remain an innovative and trusted partner for a sustainable built environment. Our products for building, technical, marine and offshore insulation, as well as acoustic products, are designed to meet the demanding needs of new construction and renovation alike. We manufacture our products in Finland, Sweden, Lithuania, Poland and Russia, and deliver them to customers in our familiar red-and-white-striped packages. In 2017, our net sales amounted to MEUR 411 and the company employed around 1840 people. Paroc is a part of Owens Corning.