EPJ List of Products and Services

■Recently, our "Pipe-in-Sleeve," showcased at the JECA Fair 2025, is officially launched with great anticipation.■ In the underground wall section (underground beam sleeve), we have pre-treated the PVC sleeve and the outer space (gap) of the FEP with "waterproof treatment" at the factory, making it prefabricated for the site. No cumbersome work is required on-site; after the PIS installation, only joint connections are basically needed. Ensuring stable waterproofing! Achieving work efficiency and promoting flood prevention and water resistance. This is an innovative and advanced product for underground beam sleeve construction. <Features> ■ Excellent waterproof performance [Flood prevention and water resistance promotion] ■ Proposal for labor-saving at construction sites ■ Adaptable to individual design specifications of construction projects ■ Improved work efficiency, standardized quality, and enhanced maintenance [To designers and contractors] FEP pipe routing, bell mouth terminal installation, connection of different types of pipes (AQ type), and various connection parts of FEP can be arranged to fit the specifications of individual construction sites! Furthermore, it can also respond to unexpected leaks! It combines maintenance and serviceability, making it a versatile and highly adaptable product. (Feel free to request drawings) *For details, please request a catalog from "Contact Us" or view the PDF data from "Download"

When using the CAD data download, please check the following precautions in advance. From the moment you use the provided data, you will be considered to have agreed to the following precautions. Thank you for your understanding. <Precautions> ◆ The CAD data is to be used solely for the purpose of considering the adoption of our products, and should not be used for any other purpose. ◆ The copyright and ownership of the CAD data are owned by EPJ Corporation, and you may not reuse (repurpose) the data in digital or print media without the consent of EPJ Corporation. Furthermore, please refrain from lending or transferring it to third parties. ◆ Please refrain from making any unauthorized modifications or alterations to the CAD data. ◆ Please be aware that we cannot be held responsible for any results arising from the use of the CAD data. ◆ The published data may be updated or deleted without notice due to product improvements or version upgrades. Thank you for your understanding. *For details, please request a catalog through "Contact Us" and view the PDF data through "Download."

Polyethylene Personnel Access Hole (Personnel Access Port) EP-Sleeve In response to everyone's requests, we are excited to announce its upcoming release! ■ High Pressure Strength: The smooth double structure of the corrugated inner surface makes it resistant to impact and external pressure, providing excellent flat strength. ■ Lightweight Material: Compared to rigid PVC pipes, it is lightweight. It enhances transportation and work efficiency, contributing to "labor-saving" at construction sites. ■ Rust Resistant: Made of high-density polyethylene, it is safe and secure for installation in water areas! ■ Cold and Chemical Resistant: Compared to rigid PVC pipes, it is suitable for installation in extremely cold regions and shows no degradation against most chemicals. "Lightweight accelerates efficiency on site!" A material that combines high pressure strength with the lightweight that leads to direct workability. In particular, rigid PVC pipes weigh about 53 kg/m, while polyethylene sleeves weigh about 17 kg/m, showcasing an overwhelming weight difference! We guarantee a significant improvement in work efficiency at construction sites. Furthermore, it also reduces the burden on workers and lowers the risk of accidents, contributing to enhanced safety! *For details, please request a catalog from "Contact Us" or view the PDF data from "Download."

Polyethylene Personnel Access Hole (Access Port) EP-Sleeve In response to everyone's requests, we are excited to announce its upcoming release! ■ High Pressure Resistance: The smooth double structure of the corrugated inner surface makes it strong against impacts and external pressure, providing excellent flat strength. ■ Lightweight Material: Compared to rigid PVC pipes, it is lightweight. It enhances transportation and work efficiency, contributing to labor-saving in construction sites. ■ Rust Resistant: Made of high-density polyethylene, it is safe and secure for installation in wet areas! ■ Cold and Chemical Resistant: Compared to rigid PVC pipes, it is suitable for installation in extremely cold regions and shows no degradation against most chemicals. “Lightweight accelerates efficiency on site!” A material that combines high pressure resistance and the lightweight that leads to direct workability. In particular, while rigid PVC pipes weigh about 53kg/m, the polyethylene sleeve weighs about 17kg/m, showcasing an overwhelming weight difference! We guarantee a significant improvement in work efficiency on construction sites. Furthermore, it also reduces the burden on workers and lowers the risk of accidents, contributing to enhanced safety! *For more details, please request the catalog from "Contact Us" or view the PDF data from "Download."

When using the CAD data download, please check the following notes in advance. From the moment you use the provided data, you are considered to have agreed to the following notes. Thank you for your understanding. <Notes> ◆ The CAD data is to be used solely for the purpose of considering the adoption of our products, and should not be used for any other purpose. ◆ The copyright and ownership of the CAD data belong to EPJ Corporation, and you may not reuse (repurpose) the data in digital or print media without the consent of EPJ Corporation. Furthermore, please refrain from lending or transferring it to third parties. ◆ Please refrain from modifying or processing the CAD data without permission. ◆ Please be aware that we cannot be held responsible for any results arising from the use of the CAD data. ◆ The published data may be updated or deleted without notice due to product improvements or version upgrades. Thank you for your understanding. * For details, please request a catalog through "Contact Us" and view the PDF data through "Download."

In the construction industry, shortening construction periods is a crucial issue directly linked to cost reduction and efficiency. In particular, the installation of access openings is one of the factors that affect the construction schedule due to the time and effort required. EP sleeves, being lightweight, facilitate transportation and installation, contributing to a reduction in work time. 【Usage Scenarios】 ◆ For access openings in water pit partitions of buildings and various structures! - Ensures high load-bearing performance with polyethylene pipes. - Reduces work burden with lightweight polyethylene sleeves. - Provides corrosion resistance measures in underground pits and water areas. 【Benefits of Implementation】 ◆ Proposals for labor and manpower savings! - Reduces the burden on workers - Cost reduction through shortened construction periods - Improved safety *For more details, please request a catalog through "Contact Us" or view the PDF data via "Download."

With the increase in building height and seismic resistance improvements, the width of beams has been increasing. - Increased amount of rebar (main bars and stirrups) in beams - Spread of high-strength concrete - Long-period and wind sway countermeasures - Increased load on beams due to the slimming of columns (design requirements) - Improved workability (especially with high-strength concrete) As a result of these factors, recent high-rise buildings show an increase in "beam width," particularly for underground beams, which tend to be significantly thicker, with widths exceeding 1,000 mm not being uncommon. Therefore, waterproofing work for the outer circumference of cable conduits penetrating through sleeves in underground exterior wall sections (underground beams) is extremely challenging. Due to the current shortage of construction workers and skilled labor, the waterproof performance of buildings is becoming increasingly unstable. Thus, we propose the following: **Application Scenarios** - Piping work for underground beams - Sleeve penetration work for exterior walls - Pulling through FEP pipes **Benefits of Implementation** - Significant reduction in construction time - Reduced burden on workers - Stabilization of quality - Decreased risk of water leakage

■Recently, our "Pipe-in-Sleeve," showcased at the JECA Fair 2025, is officially released with great anticipation.■ In the underground wall section (underground beam sleeve), we have pre-treated the PVC sleeve and the outer space (gap) of the FEP with "waterproof treatment" at the factory, making it prefabricated for the site. On-site, there is no need for cumbersome work; after installing the PIS, basically only joint connections are required. It ensures stable waterproofing! Achieving work efficiency and promoting flood prevention and water resistance. This is an innovative and advanced product for underground beam sleeve construction. <Features> ■ Excellent waterproof performance [Flood prevention and water resistance promotion] ■ Proposal for labor-saving at construction sites ■ Adaptable to individual project design specifications ■ Improved work efficiency, standardized quality, and enhanced maintainability [To Designers and Contractors] FEP pipe through-piping, bell mouth terminal installation, connection of different pipes (AQ type), and various connection parts of Eflex can be arranged according to the specifications of each construction site! Furthermore, it can also respond to unexpected water leaks! It combines maintenance and serviceability, making it a versatile and highly adaptable product. (Feel free to request drawings as well)

In the construction industry, there is always a demand for shorter construction periods and improved quality. In particular, the waterproofing treatment of the underground beam exterior wall is the most critical construction area for eliminating leakage risks and enhancing the safety of the building's power supply. Traditional methods often require complex waterproofing work on-site, leading to longer construction periods. However, the Pipe-in-Sleeve (PIS) system simplifies on-site work by prefabricating PVC sleeves and FEP pipes in the factory, contributing to shorter construction times. [Usage Scenarios] * Underground beam/exterior wall penetration * Underground penetration/power cable entry [Benefits of Implementation] * Labor-saving (reducing the burden on workers) * Shorter construction periods * Improved waterproof performance [For Designers and Contractors] FEP pull-through, bell mouth terminal installation, etc., can be customized to individual site specifications! Additionally, it can handle unexpected leaks! It is a versatile and highly adaptable product that also incorporates maintenance and serviceability. ● Be sure to check out the introduction video on YouTube, "Tome Taro Channel." * For more details, please request a catalog from "Contact Us," or view the PDF data from "Download."

Based on the Ministry of Land, Infrastructure, Transport and Tourism's "Basic Plan for the Longevity of Infrastructure (Bridges, Roads, Public Housing, etc.)," we aim to achieve both the longevity of infrastructure and labor-saving at construction sites as a "two birds with one stone." 【Proposed Projects】 - Public facilities (public congestion, infrastructure-related facilities, etc.) - Seismic isolation structure high-rise buildings 【Effects of Implementation】 - Longevity through non-corrosive sleeves - Improved work efficiency through labor-saving/lightweight materials - Total cost reduction (materials + construction costs) Polyethylene is a stable material that fundamentally does not use plasticizers, and its lifespan is approximately 30 to 50 years if not affected by ultraviolet rays. In contrast, PVC resin containing plasticizers begins to deteriorate in about 10 years, potentially leading to reduced flexibility and cracking. EP sleeves contribute to the longevity of construction and infrastructure. "'Lightweight' accelerates 'efficiency' on site!" A sleeve material that combines high pressure resistance and direct workability with "lightweight." In particular, compared to rigid PVC pipes weighing about 53 kg/m, EP sleeves weigh about 17 kg/m, ensuring a significant weight difference that guarantees improved work efficiency and labor-saving at construction sites. *For details, please request a catalog from "Contact Us" or view the PDF data from "Download."

[Coming Soon] An upgraded version of the beloved "Pipe-in-Sleeve"! "Pipe-in-Sleeve T-Type," abbreviated as PIS-T. In contrast to the PVC sleeve, a through pipe made of FEP has been pre-filled with waterproof material (sealant) at the factory, making it prefabricated. The T-type further features a "drainage PVC flange" welded with PVC material to the outer layer of the PVC sleeve. This method replaces the ring-shaped or band-shaped waterproof material on the outer circumference of the PVC sleeve, responding to strong requests from construction companies. <Features> ■ Excellent waterproofing due to prefabrication: Promotes flood prevention and water resistance ■ Labor-saving at construction sites! Reduces worker burden and prevents troubles in advance! ■ No skilled techniques required! Simplifies complex tasks! ■ Flexibility to accommodate individual design specifications of projects! ■ Improved work efficiency, standardized quality, and enhanced maintenance! [For Designers and Contractors] FEP pull-through, bell mouth terminal installation, etc., can be arranged according to individual site specifications! Additionally, it is equipped to handle unexpected leaks! A versatile and highly adaptable product that also incorporates maintenance and serviceability. *For details, please request a catalog from "Contact Us" or view the PDF data from "Download."