How to Insulate Hot Pipes with ROCKWOOL Mineral Wool<\/h1><\/div>Piping systems<\/strong> serve as the central connection between various equipment in chemical and petroleum industries. For example, power plants contain numerous equipment including columns, pressure vessels, boilers, turbines, and others. <\/span><\/p>\nThe piping system transfers raw materials from one piece of equipment to another. The contents may be chemicals or steam that must maintain their original conditions (temperature, viscosity, pressure) for further use.<\/p>\n
It is crucial to maintain the original conditions of materials as they move through pipes between equipment. Designers must ensure that the insulated piping system minimizes heat loss and maximizes energy conservation.<\/p>\n<\/div><\/div><\/div>
<\/i><\/i><\/span>You can select and read further.<\/span><\/a><\/h4><\/div>- Requirements for Hot Pipe Insulation<\/a>
- Goals of Hot Pipe Insulation<\/a><\/li>
- Standards for Hot Pipe Insulation<\/a><\/li>
- Thermal Insulation Systems for Hot Pipes<\/a><\/li><\/ul><\/li>
- Installing Hot Pipe Insulation with ROCKWOOL ProRox PS Pre-formed Sections<\/a>
- Designing Insulation Thickness for Contact Protection<\/a><\/li>
- Pipe Supports and Spacers<\/a><\/li><\/ul><\/li>
- Insulating Hot Pipes with Wire Mesh Mineral Wool<\/a>
- Designing Insulation Thickness for Contact Protection<\/a><\/li>
- Pipe Supports and Spacers<\/a><\/li><\/ul><\/li>
- Support Equipment for Pipe Insulation Systems<\/a>
- A. Spacers<\/a><\/li>
- B. Pipe Supports<\/a><\/li><\/ul><\/li>
- Metal Cladding<\/a>
- Impact of Cladding on Surface Temperature<\/a><\/li><\/ul><\/li>
- Pipe Hangers and Pipe Supports<\/a>
- Direct-mount pipe hangers<\/a><\/li>
- Direct-mount pipe hangers<\/a><\/li>
- Direct-mount pipe hangers<\/a><\/li><\/ul><\/li>
- Insulating Valves and Flanges with Mineral Wool<\/a><\/li>
- How to Insulate Elbows and T-Pieces<\/a>
- Insulating Elbows with ROCKWOOL ProRox PS Pre-formed Pipe Sections<\/a><\/li>
- Insulating Elbows with ROCKWOOL ProRox WM Wire Mesh<\/a><\/li>
- Cladding Installation at Elbows<\/a><\/li>
- Cladding Installation at T-Pieces<\/a><\/li><\/ul><\/li>
- Insulating Reducers<\/a>
- Insulating Horizontal Reducers with Mineral Wool<\/a><\/li>
- Insulating Vertical Reducers with Mineral Wool<\/a><\/li><\/ul><\/li>
- Expansion Joints<\/a>
- Insulating Vertical Expansion Joints with Mineral Wool<\/a><\/li>
- Insulating Horizontal Expansion Joints with Mineral Wool<\/a><\/li><\/ul><\/li>
- Foot Traffic on Insulated Pipes<\/a><\/li><\/ul><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>
![\"White](\"https:\/\/3t-insulation.com\/wp-content\/uploads\/2022\/08\/White-Pipeline.jpg\" "\\"|\\"")
<\/span> <\/div>Hot Pipe Systems<\/p><\/div><\/div><\/div>
Requirements for Hot Pipe Insulation<\/h2><\/div><\/b>Goals of Hot Pipe Insulation<\/h3><\/div>\n- \n
\n- Reduce heat loss (reduce energy costs)<\/li>\n
- Reduce CO2 emissions<\/li>\n
- Mineral wool insulation can maintain system temperature<\/li>\n
- Reduce pipe system noise<\/li>\n
- Prevent condensation<\/li>\n
- Protect against potentially dangerous heat contact with humans<\/li>\n
- Prevent and inhibit fire<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/div>
![\"Hot](\"https:\/\/3t-insulation.com\/wp-content\/uploads\/2022\/08\/pipeline-insulation.jpg\" "\\"pipeline-insulation\\"")
<\/span> <\/div><\/div><\/div><\/div><\/b>Standards for Hot Pipe Insulation<\/h3><\/div>Installation and usage should consider these standards and regulations:<\/p>\n
\n- \n
\n- \n
\n- DIN 4140: Thermal insulation for power plants and equipment<\/li>\n
- AGI Q101: Thermal insulation for power plant equipment<\/li>\n
- CINI-Manual: Thermal insulation for industrial applications<\/li>\n
- BS 5970: Code of practice for thermal insulation of hot water pipes, air conditioning systems, and other industrial equipment<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/div>
<\/b>Thermal Insulation Systems for Hot Pipes<\/h3><\/div>Hot pipe insulation requires metal cladding after insulation to protect both pipe and insulation from weather conditions and external forces (such as impact, collision, or maintenance foot traffic).<\/p>\n
Spacer installation is necessary when insulating pipes with wire mesh mineral wool because this type of insulation cannot withstand external compression forces and the weight of surface metal cladding (if the cladding directly compresses the insulation, the mineral wool will collapse, reducing insulation thickness and increasing energy loss).<\/p>\n
Therefore, installing spacers directs external compression weight directly to the pipe, avoiding any impact on the insulation system.<\/p>\n<\/div>
![\"\"](\"https:\/\/3t-insulation.com\/wp-content\/uploads\/2022\/08\/spacer.jpg\" "\\"spacer\\"")
<\/span> <\/div>Spacers for mineral wool insulation installation - Source: Integrity-products<\/p><\/div><\/div><\/div>
<\/b>Mineral Wool Pipe Insulation <\/b>Pre-formed Pipe Sections<\/b> (ProRox Pipe Section)<\/b><\/b><\/h4><\/div>ROCKWOOL has developed ProRox PS WR-Tech pre-formed pipe sections that reduce chloride content to below 10 ppm to prevent steel pipe corrosion and corrosion under insulation.<\/p>\n
Pre-formed pipe sections are available from small 1\/2″ NPS (23mm) to large 36″ NPS (915mm) sizes, with thicknesses from 25-100 mm, giving designers multiple options. The clear advantage is easy and quick installation, as they simply slip onto steel pipes and don’t require spacers like wire mesh types.<\/p>\n<\/div>
![\"Rockwool](\"https:\/\/3t-insulation.com\/wp-content\/uploads\/2022\/08\/pipe-with-rockwool-insulation-and-spacer.jpg\" "\\"pipe-with-rockwool-insulation-and-spacer\\"")
<\/span> <\/div><\/div><\/div><\/div>Pre-formed pipe sections have high densities of 120 kg\/m\u00b3 and 150 kg\/m\u00b3, making them compression-resistant. Wire mesh types are softer with densities of only 80\/100\/128 kg\/m\u00b3.<\/p>\n<\/div>
<\/b>Mineral Wool Pipe Insulation <\/b>Wire Mesh Type<\/b> (ProRox Wire Mat)<\/b><\/h4><\/div>Wire mesh mineral wool insulation like ProRox WM is made from volcanic rock fibers, bonded with a binder, and features ROCKWOOL’s exclusive WR-Tech innovation that reduces chloride content below 10 ppm to prevent under-insulation corrosion.<\/p>\n
Standard products use galvanized wire mesh, but special products with stainless steel mesh are also available. Wire mesh mineral wool insulation is used for large pipes 14″ NPS (DN 350) or fittings that are difficult to insulate with pre-formed sections, such as T-joints, elbows, or various flanges.<\/p>\n
Wire mesh mineral wool insulation is used because it can be easily cut and shaped – simply cut the insulation with a knife and the wire with pliers for immediate use.<\/p>\n
However, wire mesh insulation is not compression-resistant and must be used with spacers or pipe supports to maintain the insulation system’s effectiveness.<\/p>\n<\/div>
![\"Insulated](\"https:\/\/3t-insulation.com\/wp-content\/uploads\/2022\/08\/Pipeline-and-clading.jpg\" "\\"Pipeline")
<\/span> <\/div>Pipe system with completed mineral wool insulation and cladding installation - Source: ROCKWOOL PROCESS MANUAL<\/p><\/div><\/div><\/div>
<\/b>Comparison Between Pre-formed and Wire Mesh Insulation Systems<\/h4><\/div>The main benefit of pre-formed pipe sections is that they don’t require pipe support installation, allowing faster work and better heat retention. Wire mesh types require spacer installation, taking longer and creating heat points at spacers that increase heat loss.<\/p>\n
Advantages of Pre-formed Pipe Sections<\/p>\n
\n- No need to install spacers or pipe supports<\/li>\n
- Faster installation due to no spacer requirement<\/li>\n
- Jacket can be installed directly against mineral wool insulation<\/li>\n
- Spacer installation increases energy loss<\/li>\n
- Heat points develop at spacer installation areas<\/li>\n<\/ul>\n<\/div>
![\"Insulation](\"https:\/\/3t-insulation.com\/wp-content\/uploads\/2022\/08\/01-insulation-system-with-a-spacer-ring.jpg\" "\\"Insulation")
<\/span> <\/div>Insulation system with a spacer ring and diagram showing heat loss. Source - ROCKWOOL PROCESS MANUAL<\/p><\/div><\/div><\/div>
![\"Insulation](\"https:\/\/3t-insulation.com\/wp-content\/uploads\/2022\/08\/02-Insulation-system-without-a-spacer-ring.jpg\" "\\"Insulation")
<\/span> <\/div>Insulation system without a spacer ring. Source - ROCKWOOL PROCESS MANUAL\n<\/p><\/div><\/div><\/div>
<\/b>Comparing Thickness of Pre-formed and Wire Mesh Mineral Wool Insulation<\/h4><\/div>When comparing both insulation systems with equal heat loss, use the table below to compare insulation thicknesses under these conditions:<\/p>\n
\n- Average temperature: 250\u00b0C<\/li>\n
- Ambient temperature: 10\u00b0C<\/li>\n
- Wind speed: 5 meters\/second<\/li>\n
- Jacket: Aluzinc<\/li>\n
- Heat loss rate: 150 watts\/meter<\/li>\n
- Spacer installation required for wire mesh insulation system<\/li>\n<\/ul>\n<\/div>\n\n
\n\n\nPipe Size DN<\/th>\n inches<\/th>\n mm<\/th>\n ProRox PS960<\/th>\n ProRox WM950<\/th>\n<\/tr>\n<\/thead>\n \n\n50<\/td>\n 2<\/td>\n 60<\/td>\n 30<\/td>\n N\/A<\/td>\n<\/tr>\n \n80<\/td>\n 3<\/td>\n 89<\/td>\n 30<\/td>\n N\/A<\/td>\n<\/tr>\n \n100<\/td>\n 4<\/td>\n 115<\/td>\n 40<\/td>\n N\/A<\/td>\n<\/tr>\n \n150<\/td>\n 6<\/td>\n 169<\/td>\n 60<\/td>\n N\/A<\/td>\n<\/tr>\n \n200<\/td>\n 8<\/td>\n 220<\/td>\n 80<\/td>\n 110 (50+60)<\/td>\n<\/tr>\n \n250<\/td>\n 10<\/td>\n 275<\/td>\n 90<\/td>\n 140 (70+70)<\/td>\n<\/tr>\n \n300<\/td>\n 12<\/td>\n 324<\/td>\n 100<\/td>\n 160 (80+80)<\/td>\n<\/tr>\n \n350<\/td>\n 14<\/td>\n 356<\/td>\n 110<\/td>\n 180 (90+90)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/b>Comparing Thickness of Pre-formed and Wire Mesh Mineral Wool Insulation<\/h4><\/div>Typically, pre-formed mineral wool insulation is more suitable for straight pipes as it doesn’t require spacer installation, allowing faster work. For flanges or elbows, wire mesh types are necessary as they can be easily cut to shape. Here’s a table for recommended insulation selection:<\/p>\n<\/div>\n
\n\n\n\nApplication<\/th>\n Temperature (\u00b0C)<\/th>\n ProRox PS960<\/th>\n ProRox WM950<\/th>\n ProRox WM960<\/th>\n<\/tr>\n<\/thead>\n \n\nStraight Pipes<\/td>\n < 300\u00b0C<\/td>\n +++++<\/td>\n ++<\/td>\n +<\/td>\n<\/tr>\n \n<\/td>\n 300 – 600\u00b0C<\/td>\n +++<\/td>\n ++<\/td>\n +<\/td>\n<\/tr>\n \n<\/td>\n > 600\u00b0C<\/td>\n <\/td>\n <\/td>\n +++<\/td>\n<\/tr>\n \nShort Pipes
Elbows
Valves
Flanges<\/td>\n < 300\u00b0C<\/td>\n +<\/td>\n +++<\/td>\n ++<\/td>\n<\/tr>\n \n<\/td>\n 300 – 600\u00b0C<\/td>\n <\/td>\n +++<\/td>\n ++<\/td>\n<\/tr>\n \n<\/td>\n 600 – 650\u00b0C<\/td>\n <\/td>\n <\/td>\n +++<\/td>\n<\/tr>\n \nBuilding Hot Pipes
for Building Services <\/span><\/td>\n D < 356 mm<\/td>\n +++++<\/td>\n <\/td>\n <\/td>\n<\/tr>\n \n<\/td>\n D > 356 mm<\/td>\n ++++<\/td>\n <\/td>\n <\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n <\/p>\n<\/div>\n
Installing Hot Pipe Insulation with ROCKWOOL ProRox PS Pre-formed Sections<\/h2><\/div><\/b>Designing Insulation Thickness for Contact Protection<\/h3><\/div>The table below helps design insulation thickness to prevent hazards from pipe surface contact, with these example conditions:<\/p>\n
\n- Ambient temperature: 25\u00b0C<\/li>\n
- Wind speed: 0 meters\/second<\/li>\n
- Jacket: Galvanized sheet<\/li>\n
- Maximum surface temperature: 60\u00b0C<\/li>\n
- Insulation used: ProRox PS960<\/li>\n<\/ul>\n<\/div>\n\n
\n\n\nPipe Size DN<\/th>\n inches<\/th>\n mm<\/th>\n < 200\u00b0C<\/th>\n 250\u00b0C<\/th>\n 300\u00b0C<\/th>\n 350\u00b0C<\/th>\n 400\u00b0C<\/th>\n 450\u00b0C<\/th>\n \n500\u00b0C<\/p>\n<\/th>\n<\/tr>\n<\/thead>\n
\n\n25<\/td>\n 1<\/td>\n 34<\/td>\n 20<\/td>\n 30<\/td>\n 40<\/td>\n 60<\/td>\n 70<\/td>\n 80<\/td>\n 100<\/td>\n<\/tr>\n \n50<\/td>\n 2<\/td>\n 60<\/td>\n 30<\/td>\n 40<\/td>\n 50<\/td>\n 70<\/td>\n 80<\/td>\n 100<\/td>\n 110<\/td>\n<\/tr>\n \n80<\/td>\n 3<\/td>\n 89<\/td>\n 30<\/td>\n 40<\/td>\n 50<\/td>\n 80<\/td>\n 90<\/td>\n 100<\/td>\n 130<\/td>\n<\/tr>\n \n100<\/td>\n 4<\/td>\n 115<\/td>\n 30<\/td>\n 40<\/td>\n 60<\/td>\n 80<\/td>\n 100<\/td>\n 120<\/td>\n 140<\/td>\n<\/tr>\n \n150<\/td>\n 6<\/td>\n 169<\/td>\n 30<\/td>\n 50<\/td>\n 60<\/td>\n 90<\/td>\n 110<\/td>\n 130<\/td>\n 150<\/td>\n<\/tr>\n \n200<\/td>\n 8<\/td>\n 219<\/td>\n 40<\/td>\n 50<\/td>\n 60<\/td>\n 90<\/td>\n 120<\/td>\n 140<\/td>\n 160<\/td>\n<\/tr>\n \n250<\/td>\n 10<\/td>\n 275<\/td>\n 40<\/td>\n 50<\/td>\n 70<\/td>\n 100<\/td>\n 120<\/td>\n 150<\/td>\n 170<\/td>\n<\/tr>\n \n300<\/td>\n 12<\/td>\n 324<\/td>\n 40<\/td>\n 50<\/td>\n 70<\/td>\n 100<\/td>\n 130<\/td>\n 150<\/td>\n 180<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n <\/p>\n<\/div>\n
Installation<\/b><\/p>\n
ROCKWOOL ProRox PS960 mineral wool comes as hollow tubes with inner diameters matching steel pipe sizes and layered thicknesses, fitting perfectly when slipped onto steel pipes.<\/p>\n
\n- For horizontal pipes, we rotate the insulation split beneath the pipe to prevent rainwater from dripping through the split to the steel pipe. <\/span><\/li>\n
- For vertical pipes, we offset the insulation gaps by about <\/span>30 degrees to prevent water droplets from flowing through splits to the steel pipe.<\/li>\n
- After installing insulation, we secure it with galvanized wire or metal straps.<\/li>\n
- Pipe insulation thicker than 120 mm (or for temperatures above 300\u00b0C) requires 2 or 3 layers of insulation. The splits must be staggered to prevent water penetration to the inner pipe surface.<\/li>\n<\/ul>\n<\/div>
![\"ProRox](\"https:\/\/3t-insulation.com\/wp-content\/uploads\/2022\/08\/03-ProRox-PS-insulation-thickness-to-guarantee-protection-against-contact.jpg\" "\\"ProRox")
<\/span> <\/div>Characteristics of pipe insulation system using prefabricated pipe sections. Source - ROCKWOOL PROCESS MANUAL\n<\/p><\/div><\/div><\/div>
<\/b>Pipe Supports and Spacers<\/h3><\/div>Typically, pre-formed pipe section systems don’t need spacers and pipe supports. However, for pipes with significant vibration and\/or temperatures above 300\u00b0C, spacer installation may be necessary.<\/p>\n
For vertical pipes taller than 4 meters, pipe supports lock insulation to the pipe. We install the first support ring at the pipe’s lowest point, with subsequent rings spaced no more than 4 meters apart.<\/p>\n<\/div>
Insulating Hot Pipes with Wire Mesh Mineral Wool<\/h2><\/div>Wire mesh mineral wool insulation suits large pipes or fittings because it’s easier to cut and shape for fitting joints. Wire mesh mineral wool has lower compression resistance than pre-formed sections and should be installed with spacers.<\/p>\n<\/div>
<\/b>Designing Insulation Thickness for Contact Protection<\/h3><\/div>The table below helps design insulation thickness to prevent hazards from pipe surface contact, with these conditions:<\/p>\n
\n- Ambient temperature: 25\u00b0C<\/li>\n
- Wind speed: 0 meters\/second<\/li>\n
- Jacket: Galvanized sheet<\/li>\n
- Maximum surface temperature: 60\u00b0C<\/li>\n
- Insulation used: ProRox WM950<\/li>\n<\/ul>\n<\/div>\n\n
\n\n\nPipe Size DN<\/th>\n inches<\/th>\n mm<\/th>\n < 100\u00b0C<\/th>\n 200\u00b0C<\/th>\n 300\u00b0C<\/th>\n 400\u00b0C<\/th>\n 500\u00b0C<\/th>\n 600\u00b0C<\/th>\n<\/tr>\n<\/thead>\n \n\n200<\/td>\n 8<\/td>\n 219<\/td>\n 30<\/td>\n 40<\/td>\n 80<\/td>\n 110<\/td>\n 160<\/td>\n 180<\/td>\n<\/tr>\n \n250<\/td>\n 10<\/td>\n 274<\/td>\n 30<\/td>\n 50<\/td>\n 80<\/td>\n 120<\/td>\n 170<\/td>\n 190<\/td>\n<\/tr>\n \n300<\/td>\n 12<\/td>\n 324<\/td>\n 30<\/td>\n 50<\/td>\n 80<\/td>\n 130<\/td>\n 170<\/td>\n 190<\/td>\n<\/tr>\n \n400<\/td>\n 16<\/td>\n 406<\/td>\n 30<\/td>\n 50<\/td>\n 90<\/td>\n 130<\/td>\n 170<\/td>\n 190<\/td>\n<\/tr>\n \n500<\/td>\n 20<\/td>\n 508<\/td>\n 30<\/td>\n 50<\/td>\n 90<\/td>\n 130<\/td>\n 180<\/td>\n 200<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n <\/p>\n<\/div>\n
Installation<\/b><\/p>\n\n- Cut mineral wool insulation to length that wraps around pipe completely<\/li>\n
- Pull wire mesh of mineral wool tight and secure with 0.5 mm metal wire<\/li>\n
- Stainless steel pipes and pipes above 400\u00b0C use wire stitching to prevent wire tearing and rust<\/li>\n
- For insulation thicker than 120 mm or temperatures above 300\u00b0C, multiple insulation layers are needed. Split joints must not align to prevent water penetration to inner pipe surface. <\/li>\n<\/ul>\n<\/div>
Piping systems<\/strong> serve as the central connection between various equipment in chemical and petroleum industries. For example, power plants contain numerous equipment including columns, pressure vessels, boilers, turbines, and others. <\/span><\/p>\n The piping system transfers raw materials from one piece of equipment to another. The contents may be chemicals or steam that must maintain their original conditions (temperature, viscosity, pressure) for further use.<\/p>\n It is crucial to maintain the original conditions of materials as they move through pipes between equipment. Designers must ensure that the insulated piping system minimizes heat loss and maximizes energy conservation.<\/p>\n<\/div><\/div><\/div> Hot Pipe Systems<\/p><\/div><\/div><\/div> Installation and usage should consider these standards and regulations:<\/p>\n Hot pipe insulation requires metal cladding after insulation to protect both pipe and insulation from weather conditions and external forces (such as impact, collision, or maintenance foot traffic).<\/p>\n Spacer installation is necessary when insulating pipes with wire mesh mineral wool because this type of insulation cannot withstand external compression forces and the weight of surface metal cladding (if the cladding directly compresses the insulation, the mineral wool will collapse, reducing insulation thickness and increasing energy loss).<\/p>\n Therefore, installing spacers directs external compression weight directly to the pipe, avoiding any impact on the insulation system.<\/p>\n<\/div> Spacers for mineral wool insulation installation - Source: Integrity-products<\/p><\/div><\/div><\/div> ROCKWOOL has developed ProRox PS WR-Tech pre-formed pipe sections that reduce chloride content to below 10 ppm to prevent steel pipe corrosion and corrosion under insulation.<\/p>\n Pre-formed pipe sections are available from small 1\/2″ NPS (23mm) to large 36″ NPS (915mm) sizes, with thicknesses from 25-100 mm, giving designers multiple options. The clear advantage is easy and quick installation, as they simply slip onto steel pipes and don’t require spacers like wire mesh types.<\/p>\n<\/div> Pre-formed pipe sections have high densities of 120 kg\/m\u00b3 and 150 kg\/m\u00b3, making them compression-resistant. Wire mesh types are softer with densities of only 80\/100\/128 kg\/m\u00b3.<\/p>\n<\/div> Wire mesh mineral wool insulation like ProRox WM is made from volcanic rock fibers, bonded with a binder, and features ROCKWOOL’s exclusive WR-Tech innovation that reduces chloride content below 10 ppm to prevent under-insulation corrosion.<\/p>\n Standard products use galvanized wire mesh, but special products with stainless steel mesh are also available. Wire mesh mineral wool insulation is used for large pipes 14″ NPS (DN 350) or fittings that are difficult to insulate with pre-formed sections, such as T-joints, elbows, or various flanges.<\/p>\n Wire mesh mineral wool insulation is used because it can be easily cut and shaped – simply cut the insulation with a knife and the wire with pliers for immediate use.<\/p>\n However, wire mesh insulation is not compression-resistant and must be used with spacers or pipe supports to maintain the insulation system’s effectiveness.<\/p>\n<\/div> Pipe system with completed mineral wool insulation and cladding installation - Source: ROCKWOOL PROCESS MANUAL<\/p><\/div><\/div><\/div> The main benefit of pre-formed pipe sections is that they don’t require pipe support installation, allowing faster work and better heat retention. Wire mesh types require spacer installation, taking longer and creating heat points at spacers that increase heat loss.<\/p>\n Advantages of Pre-formed Pipe Sections<\/p>\n Insulation system with a spacer ring and diagram showing heat loss. Source - ROCKWOOL PROCESS MANUAL<\/p><\/div><\/div><\/div> Insulation system without a spacer ring. Source - ROCKWOOL PROCESS MANUAL\n<\/p><\/div><\/div><\/div> When comparing both insulation systems with equal heat loss, use the table below to compare insulation thicknesses under these conditions:<\/p>\n Typically, pre-formed mineral wool insulation is more suitable for straight pipes as it doesn’t require spacer installation, allowing faster work. For flanges or elbows, wire mesh types are necessary as they can be easily cut to shape. Here’s a table for recommended insulation selection:<\/p>\n<\/div>\n <\/p>\n<\/div>\n The table below helps design insulation thickness to prevent hazards from pipe surface contact, with these example conditions:<\/p>\n 500\u00b0C<\/p>\n<\/th>\n<\/tr>\n<\/thead>\n <\/p>\n<\/div>\n Installation<\/b><\/p>\n ROCKWOOL ProRox PS960 mineral wool comes as hollow tubes with inner diameters matching steel pipe sizes and layered thicknesses, fitting perfectly when slipped onto steel pipes.<\/p>\n Characteristics of pipe insulation system using prefabricated pipe sections. Source - ROCKWOOL PROCESS MANUAL\n<\/p><\/div><\/div><\/div> Typically, pre-formed pipe section systems don’t need spacers and pipe supports. However, for pipes with significant vibration and\/or temperatures above 300\u00b0C, spacer installation may be necessary.<\/p>\n For vertical pipes taller than 4 meters, pipe supports lock insulation to the pipe. We install the first support ring at the pipe’s lowest point, with subsequent rings spaced no more than 4 meters apart.<\/p>\n<\/div> Wire mesh mineral wool insulation suits large pipes or fittings because it’s easier to cut and shape for fitting joints. Wire mesh mineral wool has lower compression resistance than pre-formed sections and should be installed with spacers.<\/p>\n<\/div> The table below helps design insulation thickness to prevent hazards from pipe surface contact, with these conditions:<\/p>\n <\/p>\n<\/div>\n Installation<\/b><\/p>\n<\/i><\/i><\/span>You can select and read further.<\/span><\/a><\/h4><\/div>
<\/span>Requirements for Hot Pipe Insulation<\/h2><\/div>
<\/b>Goals of Hot Pipe Insulation<\/h3><\/div>
\n
\n
<\/span><\/b>Standards for Hot Pipe Insulation<\/h3><\/div>
\n
\n
\n
<\/b>Thermal Insulation Systems for Hot Pipes<\/h3><\/div>
<\/span><\/b>Mineral Wool Pipe Insulation <\/b>Pre-formed Pipe Sections<\/b> (ProRox Pipe Section)<\/b><\/b><\/h4><\/div>
<\/span><\/b>Mineral Wool Pipe Insulation <\/b>Wire Mesh Type<\/b> (ProRox Wire Mat)<\/b><\/h4><\/div>
<\/span><\/b>Comparison Between Pre-formed and Wire Mesh Insulation Systems<\/h4><\/div>
\n
<\/span><\/span><\/b>Comparing Thickness of Pre-formed and Wire Mesh Mineral Wool Insulation<\/h4><\/div>
\n
\n\n
\n \nPipe Size DN<\/th>\n inches<\/th>\n mm<\/th>\n ProRox PS960<\/th>\n ProRox WM950<\/th>\n<\/tr>\n<\/thead>\n \n 50<\/td>\n 2<\/td>\n 60<\/td>\n 30<\/td>\n N\/A<\/td>\n<\/tr>\n \n 80<\/td>\n 3<\/td>\n 89<\/td>\n 30<\/td>\n N\/A<\/td>\n<\/tr>\n \n 100<\/td>\n 4<\/td>\n 115<\/td>\n 40<\/td>\n N\/A<\/td>\n<\/tr>\n \n 150<\/td>\n 6<\/td>\n 169<\/td>\n 60<\/td>\n N\/A<\/td>\n<\/tr>\n \n 200<\/td>\n 8<\/td>\n 220<\/td>\n 80<\/td>\n 110 (50+60)<\/td>\n<\/tr>\n \n 250<\/td>\n 10<\/td>\n 275<\/td>\n 90<\/td>\n 140 (70+70)<\/td>\n<\/tr>\n \n 300<\/td>\n 12<\/td>\n 324<\/td>\n 100<\/td>\n 160 (80+80)<\/td>\n<\/tr>\n \n 350<\/td>\n 14<\/td>\n 356<\/td>\n 110<\/td>\n 180 (90+90)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n <\/b>Comparing Thickness of Pre-formed and Wire Mesh Mineral Wool Insulation<\/h4><\/div>
\n\n
\n \nApplication<\/th>\n Temperature (\u00b0C)<\/th>\n ProRox PS960<\/th>\n ProRox WM950<\/th>\n ProRox WM960<\/th>\n<\/tr>\n<\/thead>\n \n Straight Pipes<\/td>\n < 300\u00b0C<\/td>\n +++++<\/td>\n ++<\/td>\n +<\/td>\n<\/tr>\n \n <\/td>\n 300 – 600\u00b0C<\/td>\n +++<\/td>\n ++<\/td>\n +<\/td>\n<\/tr>\n \n <\/td>\n > 600\u00b0C<\/td>\n <\/td>\n <\/td>\n +++<\/td>\n<\/tr>\n \n Short Pipes
Elbows
Valves
Flanges<\/td>\n< 300\u00b0C<\/td>\n +<\/td>\n +++<\/td>\n ++<\/td>\n<\/tr>\n \n <\/td>\n 300 – 600\u00b0C<\/td>\n <\/td>\n +++<\/td>\n ++<\/td>\n<\/tr>\n \n <\/td>\n 600 – 650\u00b0C<\/td>\n <\/td>\n <\/td>\n +++<\/td>\n<\/tr>\n \n Building Hot Pipes
for Building Services <\/span><\/td>\nD < 356 mm<\/td>\n +++++<\/td>\n <\/td>\n <\/td>\n<\/tr>\n \n <\/td>\n D > 356 mm<\/td>\n ++++<\/td>\n <\/td>\n <\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n Installing Hot Pipe Insulation with ROCKWOOL ProRox PS Pre-formed Sections<\/h2><\/div>
<\/b>Designing Insulation Thickness for Contact Protection<\/h3><\/div>
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\n \nPipe Size DN<\/th>\n inches<\/th>\n mm<\/th>\n < 200\u00b0C<\/th>\n 250\u00b0C<\/th>\n 300\u00b0C<\/th>\n 350\u00b0C<\/th>\n 400\u00b0C<\/th>\n 450\u00b0C<\/th>\n \n \n 25<\/td>\n 1<\/td>\n 34<\/td>\n 20<\/td>\n 30<\/td>\n 40<\/td>\n 60<\/td>\n 70<\/td>\n 80<\/td>\n 100<\/td>\n<\/tr>\n \n 50<\/td>\n 2<\/td>\n 60<\/td>\n 30<\/td>\n 40<\/td>\n 50<\/td>\n 70<\/td>\n 80<\/td>\n 100<\/td>\n 110<\/td>\n<\/tr>\n \n 80<\/td>\n 3<\/td>\n 89<\/td>\n 30<\/td>\n 40<\/td>\n 50<\/td>\n 80<\/td>\n 90<\/td>\n 100<\/td>\n 130<\/td>\n<\/tr>\n \n 100<\/td>\n 4<\/td>\n 115<\/td>\n 30<\/td>\n 40<\/td>\n 60<\/td>\n 80<\/td>\n 100<\/td>\n 120<\/td>\n 140<\/td>\n<\/tr>\n \n 150<\/td>\n 6<\/td>\n 169<\/td>\n 30<\/td>\n 50<\/td>\n 60<\/td>\n 90<\/td>\n 110<\/td>\n 130<\/td>\n 150<\/td>\n<\/tr>\n \n 200<\/td>\n 8<\/td>\n 219<\/td>\n 40<\/td>\n 50<\/td>\n 60<\/td>\n 90<\/td>\n 120<\/td>\n 140<\/td>\n 160<\/td>\n<\/tr>\n \n 250<\/td>\n 10<\/td>\n 275<\/td>\n 40<\/td>\n 50<\/td>\n 70<\/td>\n 100<\/td>\n 120<\/td>\n 150<\/td>\n 170<\/td>\n<\/tr>\n \n 300<\/td>\n 12<\/td>\n 324<\/td>\n 40<\/td>\n 50<\/td>\n 70<\/td>\n 100<\/td>\n 130<\/td>\n 150<\/td>\n 180<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n \n
<\/span><\/b>Pipe Supports and Spacers<\/h3><\/div>
Insulating Hot Pipes with Wire Mesh Mineral Wool<\/h2><\/div>
<\/b>Designing Insulation Thickness for Contact Protection<\/h3><\/div>
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\n \nPipe Size DN<\/th>\n inches<\/th>\n mm<\/th>\n < 100\u00b0C<\/th>\n 200\u00b0C<\/th>\n 300\u00b0C<\/th>\n 400\u00b0C<\/th>\n 500\u00b0C<\/th>\n 600\u00b0C<\/th>\n<\/tr>\n<\/thead>\n \n 200<\/td>\n 8<\/td>\n 219<\/td>\n 30<\/td>\n 40<\/td>\n 80<\/td>\n 110<\/td>\n 160<\/td>\n 180<\/td>\n<\/tr>\n \n 250<\/td>\n 10<\/td>\n 274<\/td>\n 30<\/td>\n 50<\/td>\n 80<\/td>\n 120<\/td>\n 170<\/td>\n 190<\/td>\n<\/tr>\n \n 300<\/td>\n 12<\/td>\n 324<\/td>\n 30<\/td>\n 50<\/td>\n 80<\/td>\n 130<\/td>\n 170<\/td>\n 190<\/td>\n<\/tr>\n \n 400<\/td>\n 16<\/td>\n 406<\/td>\n 30<\/td>\n 50<\/td>\n 90<\/td>\n 130<\/td>\n 170<\/td>\n 190<\/td>\n<\/tr>\n \n 500<\/td>\n 20<\/td>\n 508<\/td>\n 30<\/td>\n 50<\/td>\n 90<\/td>\n 130<\/td>\n 180<\/td>\n 200<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n \n