Mineral wool pipe section

To select a mineral wool pipe sectionsuitable for a specific industrial pipeline project, the following aspects need to be considered comprehensively:

1. Temperature conditions

High temperature environment

If the industrial pipeline transports high-temperature media, such as steam (temperature can reach 100-500℃) or hot oil (temperature may be 100-300℃), it is necessary to choose a mineral wool pipe sectionthat can withstand the corresponding high temperature. Generally speaking, high-quality rock wool pipes can withstand high temperatures up to 600-800℃. Check the high temperature performance indicators of the product to ensure that the mineral wool pipe sectionwill not soften or deform at the highest temperature of the pipeline operation, so as not to affect the insulation effect and pipeline safety.

Low temperature environment

For pipelines that transport low-temperature media (such as liquid natural gas, the temperature can be as low as -162℃), rock wool pipes that can still maintain good elasticity and insulation performance at low temperatures should be selected. Because in a low temperature environment, some materials may become brittle, causing the insulation layer to rupture. At the same time, the anti-freeze performance of the mineral wool pipe sectionshould also be considered to ensure that it will not be damaged in a frequent alternating hot and cold environment.

2. Pipe size and shape

Size matching

Accurately measure the outer diameter, length and other dimensions of industrial pipelines. The inner diameter of the mineral wool pipe sectionshould fit closely with the outer diameter of the pipe, and a certain tolerance range is usually allowed, generally between ±5-10mm, to facilitate installation while ensuring good thermal insulation and sealing. If the pipe size is large, you may need to choose a mineral wool pipe sectionwith higher density and greater strength to better wrap the pipe and bear its own weight.

Shape adaptation

For circular pipes, conventional circular cross-section rock wool pipes are a suitable choice. However, if the pipe has a special shape, such as square, oval or with complex pipe fittings such as elbows and tees, it is necessary to consider whether the mineral wool pipe sectioncan be adapted to these shapes by cutting, splicing, etc. Some mineral wool pipe sectionproducts have good flexibility and can be easily bent and cut to meet the needs of complex pipeline systems.

3. Thermal insulation performance requirements

Thermal conductivity

Choose the thermal conductivity of the mineral wool pipe sectionaccording to the allowable range of heat loss of the industrial pipeline. If the requirements for heat loss control are very strict, such as in some high-precision chemical reaction pipelines or heating pipelines with high energy-saving requirements, it is necessary to select rock wool pipes with low thermal conductivity (usually less than 0.040W/(m・K)). Lower thermal conductivity means better insulation performance, which can effectively reduce heat transfer and reduce energy consumption.

Insulation layer thickness

The thickness of the mineral wool pipe sectionis determined based on the ambient temperature difference of the pipeline, the medium temperature and the required insulation effect. Generally speaking, the thicker the insulation layer, the better the insulation effect, but it will also increase costs and occupy space. When calculating the thickness of the insulation layer, you can refer to the relevant insulation design standards or use professional insulation calculation software to ensure that the selected mineral wool pipe sectionthickness can meet the insulation requirements of the project.

Fourth, fire protection level

Fire risk assessment

Assess the fire risk of the location of the industrial pipeline. If the pipeline is located in an area with a high fire risk, such as a flammable storage area or production workshop in a refinery or chemical plant, it is necessary to select a mineral wool pipe sectionwith a high fire protection level. Generally, the fireproof grade of mineral wool pipe sectionis required to reach the A-level non-combustible material standard, so that in the event of a fire, it can effectively prevent the spread of fire and protect the safety of pipelines and surrounding facilities.

Flame retardant performance test report

Check the flame retardant performance test report provided by the mineral wool pipe sectionsupplier, including parameters such as the oxygen index and combustion performance grade of the material. The higher the oxygen index, the more difficult the material is to burn. For example, the oxygen index of high-quality mineral wool pipe sectionis usually above 40%, which indicates that it has good flame retardant properties.