Lotte Construction Localizes Fire Sprinkler Pipe Seismic Technology, Earns New Technology Certification from Ministry of Land

Lotte Construction has successfully localized seismic-resistant technology that prevents fire sprinkler pipes from shaking or being damaged during earthquakes.

On April 29, Lotte Construction announced that, in collaboration with Doosan Engineering & Construction, HL D&I Halla, and seismic equipment specialist MakeSoon, it has developed this technology and received Construction New Technology Certification No. 1043 from the Ministry of Land, Infrastructure and Transport.

Fire sprinkler pipes are installed in underground parking lots of apartment buildings or inside buildings to supply water in case of fire. If an earthquake occurs, the pipes may shake, causing their joints to become damaged or break. In such cases, fire suppression systems may fail to function properly, or water leakage damage may occur.

Four-way vibration control braces applied in the underground parking lot at the 'Munhyeon Lotte Castle Infiniel' site in Nam-gu, Busan. Lotte Engineering & Construction

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In Korea, after the introduction of the "Seismic Design Standards for Fire Protection Facilities" in 2015, seismic-resistant devices have been applied to fire sprinkler pipes. However, these devices have often been imported from overseas, such as the United States or China. For this new technology, MakeSoon was responsible for design and prototype manufacturing, while Lotte Construction and the other two construction companies improved it by addressing issues that could arise during actual field application.

Existing technology supported pipes from only two directions, either sideways or front and back. This method provided strength at the points where supports were installed, but the pipe sections between supports could shake significantly like a lever, causing joints to rupture.

The newly developed technology grips the pipes firmly from four directions at once. By supporting the pipes from all sides simultaneously, it fundamentally blocks any shaking and greatly enhances seismic performance.

Installation efficiency has also improved. For the underground parking lot of an apartment complex with 500 households, the number of braces required can be reduced from 39 to 25. As the number of installation points decreases, carbon dioxide emissions generated during construction are reduced by about 51%, from 17,567 kg to 9,032 kg, and raw material usage is cut by about 50%, from 6,958 kg to 3,479 kg.

In addition to this Construction New Technology Certification, the technology was designated as Disaster Safety New Technology (NET) in 2022, received Green Technology and Product Certification in 2024, and obtained the Seismic Technology Verification Certificate from the Korea Association of Fire Engineers in 2025. It has also been designated as an Excellent Product by the Public Procurement Service and as a New Technology for SME Growth by Korea Land & Housing Corporation (LH).

Currently, it has been applied to projects such as Hadan Lotte Castle, Seomyeon Lotte Castle Elluche, Lotte Castle La Cent, Jangyu Lotte Tourist Hotel, and the Lotte e-Grocery Busan Logistics Center. The company plans to expand application to Moonhyeon Lotte Castle Infiniell, which is nearing completion, as well as Lotte Castle Signature Jungang and Daejeon Lotte Castle The First, which are under construction.

A Lotte Construction official stated, "It is highly significant that we have fully localized seismic-resistant technology for fire sprinkler pipes, which previously depended on foreign technology. As this is an innovative and eco-friendly construction method that reduces the use of materials and waste while maximizing safety, we will continue to develop excellent technology and expand its on-site application."

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