This article combines the latest progress in international standards, materials science and engineering practice, and provides a comprehensive technical reference for the design selection and operation and maintenance management of pre-insulated pipeline systems.
about pre-insulated steel pipes, involving multiple standards such as EN 253, EN 448, EN 488, EN 489, as well as material standards such as API 5L, ASTM A53, etc. First of all, I need to sort out the specific content and application scope of these standards. According to the information I have searched, EN 253 mainly targets steel pipe components of direct buried hot water pipe networks, while EN 488 involves steel valve components.
In industries such as HVAC, district heating, and chilled water systems, efficient insulation of pipelines is crucial for reducing energy losses and maintaining optimal temperature conditions. One effective solution for achieving this is through the use of polyurethane foam pre-insulated steel pipes. In this article, we will explore the concept of polyurethane foam pre-insulated steel pipe, its advantages, and its role in enhancing efficiency and energy conservation.
Double pre-insulated pipes are designed and manufactured to be used in hot water, hot oil, industrial lines and vapor lines at temperatures in between 120-450 ℃.
Galvanized Jacket: The zinc coating on the exterior steel jacket protects it from corrosion. Galvanizing increases durability for underground use where the pipe would be exposed to soil moisture and minerals.
Purpose: The steel Tee fitting provides the structural strength and piping connectivity, while the insulation helps reduce heat gain or loss through the pipe. This makes pre-insulated steel Tees well-suited for heating and cooling distribution systems where temperature maintenance is important.
Polyurethane insulation pipe (black jacket insulation pipe, polyurethane insulation pipe and its connecting parts, including insulation tee, insulation reducer, insulation elbow, insulation bend pipe, insulation fixed joints, etc.) is suitable for urban heating, electric heating, water transmission and insulation, oil pipeline, plumbing pipe, air conditioning pipe, electric power pipe, thermal pipe...Pipeline insulation buried in the project is widely used .It has many advantages, such as environmental protection and energy saving, anti-corrosion and heat preservation, anti-freezing and cold resistance, economy and beauty, and reducing heat loss.
Pre-insulated pipes are manufactured under TS EN 253 standards and offer 30 years of service life at 120°C, 50 years of service life at 115°C and more than 50 years of service life below 115°C.
Pre-insulated pipes, manufactured in accordance with the TS EN 253 standard, have an insulation lifespan of 30 years when continuously operated at 120-140℃, 50 years at 115℃, and over 50 years at temperatures below 115℃.
Polyurethane foam insulated steel pipe also referred as urethane foam pre-insulated piping, PU district heating pipesis the insulation pipe with rigid polyurethane foam plastic as its insulation material, made of inner carrier steel pipes, middle rigid polyurethane foam insulation layer and outer protective layer.
abtersteel manufactures its product range for district cooling strictly in compliance with EN17415-1, EN17415-2, EN17415-3, EN489 and other relevant standards, which will ensure a technical lifetime of minimum 50 years when designed and installed correctly.
Pre-Insulated Pipes • Heat loss during transfer is at a minimum level. • Provides ease of use, transportation and assembly. • It is resistant to corrosion. • It has a lifetime of more than 50 years under 120 ° C continuous temperature. • Due to the heat conduction coefficient of the polyurethane used, there is less heat loss compared to the classical system.Because the sheath pipe is HDPE, it provides 100% sealing.
