Diatomite insulating bricks KPD
Diatomite insulating brick is a lightweight insulating material made from diatomite. It is used in the insulating layer where there is no direct contact with flame. The number in the grade is the density, kg/m³.
КПД grades are made to manufacturers' specifications; similar products are described by GOST 2694.
Grades and types
КПД-350
To manufacturer's specifications. The lightest grade with the lowest thermal conductivity: 350 is the density, kg/m³. Suitable when the main goal is to reduce heat losses and the weight of the insulating layer. Placed behind the working refractory lining of furnaces and boilers.
КПД-400
To manufacturer's specifications. 400 is the density, kg/m³. The most popular grade: it combines low thermal conductivity with sufficient strength for laying the insulating layer of furnaces, boilers and pipelines.
КПД-450, КПД-500
To manufacturer's specifications. Denser and stronger grades — 450 and 500 kg/m³. They are chosen when the insulating layer carries the load of the masonry above; their thermal conductivity is higher than that of КПД-350 and КПД-400.
Can’t find the grade you need? Write to us — we supply other items too.
In brief
| Parameter | Value |
|---|---|
| Standard | manufacturers' specifications (similar products are described by GOST 2694) |
| Grades | КПД-350, КПД-400, КПД-450, КПД-500 |
| Designation | the number in the grade is the density, kg/m³ |
| Applications | insulating layer of furnaces, boilers and pipelines |
| Supply | under contract with legal entities, delivery across Kazakhstan |
How to choose a grade
The lower the number in the grade, the lighter the brick and the lower its thermal conductivity, but also the lower its strength. КПД-350 is the lightest, КПД-400 the most popular, КПД-450 and КПД-500 are denser and stronger.
Diatomite insulating brick is placed in the insulating layer behind the working refractory lining.
Frequently asked questions
How does КПД-350 differ from КПД-400?
The density: the number in the grade is the density, kg/m³. КПД-350 is lighter and conducts heat less, КПД-400 is stronger and used more often.
Can diatomite insulating brick be used in the working layer?
As a rule, no: it is an insulating material placed behind the working refractory layer. For the working layer we will select fireclay or mullite brick.
How can an enterprise order diatomite insulating bricks?
Send a request with the grade, quantity and delivery city or attach a specification. We will prepare a commercial offer, sign a contract and deliver the bricks across Kazakhstan.
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Send a request
Send grades and quantities or a specification via WhatsApp or email — we will prepare an offer. We reply during business hours, Mon–Fri 9:00–18:00.
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Requests sent outside business hours are processed on the next business day.