آجر عایق | آجر نسوز سبک کوره | محصولات عایق نسوز کــاف
High-Porosity, Low-Thermal-Conductivity Fire Bricks for Efficient Heat Insulation
Lightweight Insulating Bricks for Industrial Furnaces
Lightweight insulating fire bricks are widely used in industrial applications due to their excellent thermal properties. Typically made from high-grade refractory Refractory Clay or silica, these Fire brick have significantly lower density compared to chamotte and high-alumina refractory bricks.Kaaf Refractory Products manufactures high-quality insulating fire bricks and diatomite bricks with excellent thermal shock resistance and durability
These lightweight refractory bricks feature high porosity, low thermal conductivity, and outstanding heat insulation. Their unique properties make them ideal for use as backup insulation layers in various types of furnaces. In many designs, lightweight bricks of different thermal grades are also used as primary lining in the furnace interior.
Insulation Refractory
One of the key features of lightweight insulating fire bricks is their very low weight, high porosity, and low thermal conductivity, which significantly helps to prevent heat loss and maintain internal furnace temperature efficiently. Kaaf Industrial Group manufactures insulating refractory bricks for various temperature ranges, from 1260°C to 1650°C. Among the most widely used industrial grades are Grade 23 and Grade 26, known for their excellent thermal insulation performance in both backup and working linings of furnaces.
Insulation Brick
G23
G25
G26
G28
G30
Insulating Fire Brick G23
Price of 1260°C Insulating Brick
Insulation Fire Brick G26
Insulation Brick Purchase Price
Insulation Fire Brick G28
sale & price of Insulation Brick
Insulation Fire Brick G30
Insulating Refractory Brick Price
Ultra-Lightweight Insulating Brick
Density Insulation Fire Brick 0.5
Lightweight Insulating Brick
Density Insulation Brick 0.6
Ceramic Fiber Blanket
Lightweight with High-Temperature Resistance
Affordable Thermal Insulating Firebrick Prices
Due to their unique characteristics, insulating refractory bricks are generally more expensive than standard bricks. Features such as high-temperature resistance, lightweight structure, and thermal shock resistance make them essential for use in industrial furnaces.
The price of refractory bricks depends on several factors, including the production technology used, the quality of raw materials, and market demand. Some types of insulating bricks, designed with specialized chemical compositions, customized density, or advanced engineering, may come at a higher cost — but in return, they offer greater durability and optimal performance under extreme industrial conditions.
For expert guidance on purchasing insulating refractory and consultation on thermal insulation of industrial and construction structures, feel free to contact us
Application of refractory insulating bricks in various industries
Lightweight insulating firebrick is widely used for furnace insulation, particularly in the outer layers of kilns, to control and retain heat while minimizing energy loss. These bricks are typically made from industrial-grade materials with specific properties and high porosity. The trapped air within the porous structure significantly reduces the overall thermal conductivity, thanks to air’s naturally low thermal transfer rate.Kaaf Refractory Industrial Group, utilizing the technical expertise of Iranian engineers, manufactures high-quality thermal insulating firebricks using premium raw materials. This ensures superior product performance, particularly in terms of thermal shock resistance and durability.Another key advantage of Kaaf’s insulating brick is their exceptional resistance to thermal shocks. Moreover, the company offers a variety of insulation materials, making it easy for customers to find and purchase suitable solutions for insulating floors, ceilings, and walls in both industrial and construction projects.
Outstanding features of lightweight fire bricks
The low thermal conductivity of insulating fire bricks is primarily due to the trapped air within their porous structure and the inherent properties of the raw materials used. The higher the porosity, the lower the thermal conductivity — although porosity alone is not the sole indicator of insulation performance. The composition and structure of the refractory materials, as well as the characteristics of the Monolithic Refractories also play a critical role in thermal resistance. Kaaf Refractory’s thermal insulation products offer effective solutions for heat shielding, fire protection, and thermal insulation of buildings, metal structures, and various industrial facilities.
Lightweight thermal insulation in various industries
Oil, Gas, and Petrochemical Industry
Petrochemical Refineries and Power Plants
Metallurgical Industries
Thermal Power Plants and Electricity Generation
Tile and Ceramic Industries
Cement and Glass Industries
Lime, Cement, and Gypsum Kilns
Pottery and Glazing Kilns
تولید انواع آجر نسوز عایق سبک
Kaaf Refractory Brick Factory
Buy with confidence – receive top quality – fast delivery
Types of refractory insulating brick models (Grade 23 to 30)
آجر نسوز سبک یا آجر عایق در مدلهای مختلفی تولید میشود. درواقع هرکدام از مدل های این عایق حرارتی کاربردهای متفاوتی در صنایع دارند. انجام عایق کاری با این محصولات عایق نسوز کمک زیادی به کاهش مصرف انرژی، همچنین اتلاف انرژی می کند.
Insulating Fire Brick G23
این اجر عایق محصول توان تحمل حرارتی تا 1260 درجه سانتیگراد را دارد. بیشتر در کورههایی با دمای پایین تا متوسط به کار میرود. گرید 23 انتخابی مناسب برای کورههای آزمایشگاهی، کورههای پخت سرامیک و محیطهایی است که به عایقکاری سبک و اقتصادی نیاز دارند. استفاده از این گرید، بدلیل ضریب هدایت حرارتی پایین، نقش مهمی در کاهش مصرف انرژی ایفا میکند.
Insulating Fire Brick G25
آجر سبک گرید 25 قابلیت تحمل دما تا 1320 درجه سانتیگراد را داراست. برای کورههای صنعتی با دمای متوسط مورد استفاده قرار میگیرد. این گرید در مواردی که کاهش اتلاف انرژی، بهبود راندمان کوره اهمیت دارد، بسیار کاربردی است. بهمین دلیل، صنایع سیمان، سفال، سرامیک معمولاً از این تولیدات برای لایههای عایق کاری خود بهره میبرند.
Insulation Fire Brick G26
آجر نسوز سبک گرید 26 مقاومت حرارتی تا 1430 درجه سانتیگراد را تأمین میکند. برای کورههایی با شرایط کاری سنگینتر مناسب است. این آجر عایق بدلیل پایداری حرارتی بالا، در لایههای میانی کورههای دما بالا همچنین در صنایعی مانند شیشهسازی، پتروشیمی، حتی کورههای حرارتی خاص که نیاز به مقاومت بیشتری دارند، پرکاربرد هستند.
Insulation Fire Brick G28
این اجر نسوز عایق توانایی تحمل حرارت تا 1540 درجه سانتیگراد را دارد. برای استفاده در کورههایی با شرایط کاری سخت، دمای بالا طراحی شده است. آجر عایق گرید 28 در کورههای فولادسازی، ذوب فلزات، صنایعی که حرارت بالا بصورت مداوم وجود دارد، نقش اساسی در حفظ راندمان و کاهش اتلاف انرژی ایفا میکند.
Insulated Fire Brick G30
آجر نسوز گرید ۳۰ بالاترین سطح مقاومت حرارتی را در میان انواع آجرهای عایق دارد. این محصول میتواند دماهای تا ۱۶۵۰ درجه سانتیگراد را تحمل کند. این گرید بدلیل ویژگیهای خاص خود، برای کورههای بسیار داغ مانند کورههای ذوب آهن، صنایع فلزی سنگین انتخابی ایدهآل است. استفاده از آجر عایق گرید ۳۰، امنیت و کارایی کورهها را افزایش میدهد. همچنین موجب افزایش عمر مفید تجهیزات میشود.
انتخاب گرید مناسب آجر نسوز به دمای کاری، نوع کوره، شرایط عملیاتی بستگی دارد. هرچه دمای کوره بالاتر و شرایط سختتر باشد، نیاز به استفاده از گریدهای مقاومتر اهمیت بیشتری پیدا میکند. بنابراین برای دستیابی به راندمان حرارتی بالا، کاهش مصرف انرژی، افزایش عمر مفید تجهیزات، لازم است در زمان خرید آجر عایق با مشاوران متخصص مشورت و بهترین گرید متناسب با نیاز خود را انتخاب کنید.
The best lightweight insulation fire brick
Kaaf refractory
Purchase of heat resistant insulation
Standard dimensions and temperature range of brick
In general, thermal insulation bricks, lightweight refractory bricks, and diatomite bricks are produced in standard dimensions. We have mentioned these dimensions below. In case of high-volume orders, insulating refractory bricks and diatomite bricks can be produced in different dimensions according to your needs.
NF1: 230×114×64 – 230×114×76
NF2: 250×124×64 – 250×114×76
Temperature of insulation products:
- GM23 Temperature range 1260 C
- GM25 Temperature range 1350 C
- GM26 Temperature range 1430 C
- GM28 Temperature range 1540 C
- GM30 Temperature range 1650 C
- GM32 Temperature range 1760 C
Frequently asked questions about thermal insulation
آجر عایق سبک چیست ؟
Lightweight brick is used as a thermal insulation layer and in the supporting and main layer in the construction of industrial furnaces. Insulating bricks have high shock resistance and quality, high porosity and low thermal transfer coefficient.
Features of insulated refractory bricks
- Excellent strength at ambient and high temperatures
- High insulation properties
- Lower heat storage than fireclay and alumina bricks
- Low iron and other impurities
- Low heat transfer coefficient
- Low thermal shrinkage
What is the density and weight of lightweight brick?
As the name suggests, insulated fire bricks are very light in weight compared to other types of bricks. The weight of this brick is approximately 1 to 1.4 kg. Depending on the model, this brick may weigh more or less. Lightweight insulated bricks are produced in densities of 0.5, 0.6, 0.8 and 1 and even higher.
Contact us for advice and information on the purchase and price of lightweight refractory insulation bricks. Kaaf Industrial Group.
راهنما جامع خرید آجر عایق سبک
Prices of other refractory insulation materials in furnace construction
Thermal insulation brick is one of the basic components of industrial furnace construction, insulation of various structures used for thermal insulation. The purchase price of this lightweight insulation is an important element in the cost of furnace construction. It varies depending on the characteristics, material type, and construction quality. In various industries, using the best quality thermal insulation is very vital. One of the most important components of these thermal insulations is insulated brick, ceramic refractory blankets that are used in the structure of furnaces. The purchase price of thermal insulation brick directly depends on the characteristics, construction quality, and materials used in production. Resistance to temperature, thermal insulation properties, and the lifespan of the bricks are the factors that affect the price.
Types of fireproof insulation furnace
In addition to insulating bricks, diatomite bricks, other refractory insulators such as refractory blankets, ceramic fibers, silicate fibers, and insulating coatings are used in the construction of industrial structures. Different types of refractory insulators, with their unique characteristics, can improve the thermal performance of the furnace and reduce energy consumption. The purchase price of refractory insulators is also affected by technical characteristics, market, and supply and demand.
Overall, selecting and using the best refractory thermal insulation plays a vital role in optimizing furnace efficiency and reducing costs in the industry. To ensure maximum efficiency from furnaces, industrial managers need to carefully examine and compare the prices of refractory bricks and the technical characteristics of different types of thermal insulation.
Producing the best high quality insulating bricks
The production of the best insulating brick depends on the specific needs and conditions of each project. But in general, insulating bricks with high thermal and insulating performance are known as the best option for use in the construction of industrial furnaces and industrial equipment. Lightweight insulating bricks are made from materials such as silica, alumina and other materials and usually have a cellular structure with high porosity. Which provides excellent thermal insulation. In addition, insulating bricks of Kaff refractory products are heat-resistant and highly shock-resistant, durable. Lightweight refractory bricks withstand different temperatures. These thermal insulators are used in various industries including oil refineries, gas, petrochemical, metallurgical and smelting industries. We are always trying to produce the best refractory insulation products with the highest quality and provide them to customers and large industries.
Specialized refractory thermal insulation materials and compounds
The firebrick of the insulating furnace is produced using the best mineral refractory insulation compounds including perlite, diatomite, light chamotte, and alumina, and has a low volumetric weight, high mechanical strength, low thermal conductivity, and is easy to use.
The amount of alumina oxide in 1260°C grade insulating bricks is about 28 to 35 percent, in 1350°C lightweight bricks about 30 to 40 percent, in 1430°C insulating bricks about 40 to 55 percent, and in 1540°C refractory bricks about 65 to 68 percent. Of course, these compositions are approximate and vary according to the brick manufacturing company.
Unlike High alumina brick، Chamotte Brick & Red FirebrickRefractory Insulation Brick has less iron oxide and much lower density. The higher the temperature range of the insulation brick, the higher the aluminum oxide range in the brick and the density of the insulation brick will increase accordingly.
Professional use of insulating bricks in sensitive industries
This thermal product has many applications in various industries. It is used in various industries for insulation purposes and to prevent heat loss inside the furnace as well as to optimize energy consumption. Insulating bricks are used in furnaces, factory auto furnaces, steel industries, to protect walls and reduce heat transfer, in cement factory kilns and baking equipment as an effective refractory material in reducing energy consumption and improving furnace efficiency, in furnaces and oil and gas processing units, insulating refractory bricks are used as an essential component as thermal insulation to protect equipment from high temperatures.
In metal melting furnaces such as steel, aluminum, and copper factories, insulating refractory bricks are used to create thermal insulation and reduce heat loss. In industries such as gypsum production, glass and porcelain factories, as well as other thermal industries, lightweight insulating bricks are used for the wall and ceiling structures of furnaces to prevent temperature drop and heat transfer. For more detailed information about the price of insulating refractory bricks, contact Kaf refractory product sales experts.
عایق نسوز ، عایق حرارتی کوره ، قیمت خرید آجر عایق ، عایق صنعت نفت ، عایق صنعت گاز، عایق نسوز پالایشگاه، عایق حرارتی پتروشیمی ، قیمت خرید اجر عایق سبک، بهترین آجر عایق ، بهترین عایق نسوز حرارتی
عایق کاری کوره و مخازن با آجر و جرم نسوز عایق
Furnaces commonly used in petrochemical and refinery processes can become significant sources of energy loss if not properly managed. Energy can be lost in various ways, including the escape of combustion gases, heat loss through the furnace body and equipment, and more. Such energy loss not only leads to wasted costs but also causes irreversible environmental impacts, making it a major concern for industry managers. Using high-temperature refractory insulation bricks for furnaces helps reduce energy loss, resulting in effective long-term energy savings.
It should be noted that insulating furnaces in large factories and industries is more challenging than insulating other industrial equipment. The method of furnace insulation varies depending on its operation. If the furnace runs continuously and is subjected to very high temperature and pressure, the best method is to insulate its outer surface. For this purpose, dense refractory materials are applied on the furnace surface. In cases where the furnace is not under high pressure and temperature and does not operate continuously, an easier insulation method exists, and thermal insulation can be used as a lining.
Insulation for furnaces that operate continuously is used to retain heat and minimize heat loss through the furnace walls and roof. In contrast, for furnaces that do not operate continuously, the purpose of insulation is to prevent energy loss by reducing stored heat. Therefore, before insulation, a mechanism must be considered to identify the ways energy is lost, so that the most suitable thermal refractory insulation can be selected and implemented.
آجر عایق نسوز کاف انتخابی مطمئن
در شرکت فرآوردههای نسوز کاف ما سالهاست با تکیه بر مهارت فنی، کنترل دقیق کیفیت و استفاده از مواد اولیه استاندارد، آجرهای عایق را با عملکردی پایدار و قابل اعتماد تولید میکنیم. آجرهای عایق کاف با طراحی مهندسیشده و وزن کم، درعینحال که از اتلاف حرارت جلوگیری میکنند، استحکام و دوامی عالی در برابر شرایط سخت کاری ارائه میدهند. هدف ما ارائه محصولاتی است که نهتنها نیاز امروز صنعت را برطرف کنند، بلکه عمر تجهیزات حرارتی را افزایش داده و بهرهوری را بهبود بخشند.
اگر به دنبال آجر عایقی هستید که کیفیت، دوام و صرفهجویی انرژی را در کنار هم داشته باشد، محصولات نسوز کاف یکی از مطمئنترین انتخابهای شماست. تیم ما آماده است تا متناسب با شرایط کاری و نیازهای فنی شما، بهترین گزینه را پیشنهاد دهد تا تجربهای مطمئن و اقتصادی از استفاده آجر عایق ، جرم عایق و دیگر محصولات عایقکاری این شرکت در اختیار داشته باشید.
