This is a cache of https://www.paroc.com/en/applications/technical-insulation/process-industry/equipment-and-filter-insulation/vessel-insulation. It is a snapshot of the page as it appeared on 2026-09-20T00:03:26.184+0000.
Vessel insulation | Paroc Applications | Paroc Applications Skip to Main Content

Vessel insulation 

Vessel insulation for optimal performance 

Depending on the size and operating temperature, process equipment design usually requires different insulation and cladding options. Choosing the right vessel insulation can be crucial for optimal performance, system longevity, and maintaining an effective process temperature. Learn more about energy efficiency >

Our stone wool insulation solutions are specifically designed to prevent thermal bridges and minimize thermal loss. All our industrial solutions which are suitable for vessel insulation products are available as WR (water-repellent) products. Since their average water absorption is 10 times lower than the toughest known standard (EN1607), they provide excellent protection to minimize the risk of CUI (corrosion under insulation). Learn more about CUI >

We recommend using PAROC® Pro Slabs (WR) or PAROC® Pro (Wired) Mats (WR), for vessel insulation. These products can be tailored to the specified geometry and dimensions of vessels, making them the ideal solution.

PAROC® Pro Wired Mats (WR) are a good option for vessels with a smaller diameter. For larger tanks, PAROC® Pro Slabs (WR) can be used, with different densities depending on the required temperatures.

Please consult the respective product data sheet for more information.

Vessel insulation is critical for plant like this industrial steel heat exchanger and pipework.
Vessel Insulation Application

Benefits from Vessel Insulation

Complete insulation system for indoor and outdoor applications

We have vessel insulation solutions for external and internal settings. The PAROC® Clad product line offers waterproof pipe sections, elbow solutions, mats and accessories. The insulation facing is water resistant (according to PN-EN 1928:2002 method B), UV resistant (when installed with Paroc Clad Alu tape), resistant to salt water, high puncture resistance (tested according to EN 14477) and resistant against hail storm class, HW3.

Due to its special facing, the PAROC® Clad system eliminates the need for additional cladding or prefabrication. This helps save costs and installation time, enabling an easy installation even under high wind loads.

For high temperatures

Our products can provide long-lasting performance at high temperatures. They can withstand service temperatures of up to 700 °C, ensuring smooth operation. Please consult the respective product data sheet for more information.

High flexibility and strength

Stone wool has high flexibility and mechanical strength to meet the challenging demands of major temperature fluctuations. We have further developed our PAROC® Pro Slabs (WR), Wired Mats (WR) and Mats (WR) to offer optimum insulation properties for industrial settings.

Secure fastening for more efficiency

The method of securing the vessel insulation depends on whether welding to the surface is allowed. If welding is permitted, using welded pins with self-locking washers is the simplest option. Alternatively, the insulation can be fastened with steel bands, providing flexibility in securing the insulation. These methods usually ensure that the insulation is securely fixed and can perform efficiently.

Double-layer for higher temperatures

For vessels with maximum operating temperatures above 1000 °C, we recommend the use of a double-layer insulation solution. For large diameter storage tank walls, and above 100 °C, rigid slabs with a nominal density of minimum 80kg/m3, such as PAROC® Pro Slab 640 WR or PAROC® Pro Slab 660 WR are recommended. When, due to geometrical reasons (if too small radii are involved), the application of slabs is not possible, PAROC® wired mats with similar appropriate density need to be used instead. At the joints, the mesh of the wire mats should be sewn or stitched together with a recommended spacing of less than 100 mm and the insulation should be secured with steel bands.

Curves and outlets often call for flexible solutions

With their curves and outlets, a flexible vessel insulation often provides a better fit better. Our PAROC® Pro (Wired) Mats are ideal for appliances with irregular surfaces because they help ensure that all gaps are sufficiently filled without creating air gaps. Please consult the respective product data sheet for more information.

To increase the durability when using flexible wired insulation mats, it is usually necessary to install supporting structures. Supporting rings carry the weight of the cladding and prevent the insulation from sagging.

Based on our certifications to ISO 14025, ISO 21930 and EN 15804, we have received the Environmental Product Declaration (EPD) numbers NEPD-4100-3121-EN and NEPD-4101-3121-EN.

3D image of double-layer vessel insulation
Vessel insulation illustration TI12221

Products

Filter

PAROC® Calculus

PAROC® Calculus is a technical insulation calculation program for dimensioning thermal insulation for various applications in the HVAC and Process industries.

PAROC® Calculus features:
  • Easy-to-use interface; works on PCs, tablets, and cellphones.
  • Calculations of heat losses, surface temperatures, and temperature drop in pipes, ventilation ducts, process industry tanks, valves, and flanges.
  • Simple input of pipe diameters and duct dimensions (predefined).
  • Correcting for thermal bridges of pipe and duct suspensions.
  • Print calculations as a PDF. Multiple simultaneous printouts in PDF are possible.
  • Saving projects and customizations (for registered users).
  • Calculations based on the ISO 12241:2022 standard

PAROC® Calculus
PAROC NEWSLETTER FOR STONEWOOL PROCESS INDUSTRY INSULATION SOLUTIONS

Knowledge, products and solutions for efficient, safe and sustainable industrial insulation

PAROC® STONEWOOL NEWSLETTER FOR PROCESS INDUSTRY INSULATION SOLUTIONS

Stay up to date with our newsletter. Get the latest insights and technical expertise for industrial insulation. With a focus on energy efficient and innovative PAROC® Stonewool solutions.

Contact Paroc Technical Insulation