Water supply and drainage (insulated) pipe GNGWDA - Outstanding freeze prevention performance!
Lightweight, long-length, high strength, and excellent insulation performance! It is a high-performance freeze prevention pipe!
GNGWDA is increasingly being adopted for bridge attachments and suspended piping due to its unique characteristics of lightweight, flexibility, and earthquake resistance that are not found in other types of pipes. Nominal diameter: W40 to W100 (The conduit dimensions conform to ISO standards.) 【Features】 ○ The composite pipe structure of polyethylene and aramid fibers provides high internal pressure strength, and the corrugated steel pipe structure protects against external pressure. ○ The rigid polyurethane insulation layer prevents the freezing of fluids inside the conduit. ○ Pipes with a nominal diameter of W100 or less can be delivered to the site as long-length pipes (tab-wound). ○ The use of long-length pipes allows for labor-saving in construction and shortening of construction periods, leading to cost reductions. ○ They are long and highly flexible, allowing for bending while extending the pipe. ○ They are ideal for soft ground such as marshy areas and reclaimed land, and they also excel in earthquake resistance. ○ The outermost layer is coated with low-density polyethylene with added carbon black, providing excellent weather resistance and corrosion resistance, making it suitable for exposed pipes. ○ The EF fusion and automatic butt fusion create a reliable pipeline with a unified structure. ○ It possesses sufficient weather resistance and internal and external pressure strength as a bridge attachment pipe.
basic information
For pipe diameters of W150S and above, please refer to GNGWA. Feel free to contact your nearest sales office. Sapporo Sales Office: 011-232-8031 Sendai Sales Office: 022-227-5146 Tokyo Sales Office: 03-5610-7850 Nagoya Sales Office: 052-731-0371 Hokuriku Branch Office: 0776-43-9282 Osaka Sales Office: 06-6387-6510 Hiroshima Sales Office: 082-262-2230 Fukuoka Sales Office: 092-843-7729 【Certification and Patents】 ● Public Interest Incorporated Foundation Japan Sewerage New Technology Organization Construction Technology Examination Certificate ● Foundation Japan Fire Equipment Safety Center Firefighting Equipment Certification Certification Number PL-022 ● General Incorporated Association Sustainable Management Promotion Organization SuMPO EPD Certification Registration Number JR-BL-24005E 【Inspection Factory Registration】 ● Japan Waterworks Association Registration Number S-43 *Please inquire about the applicable pipes and diameters.
Price information
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Delivery Time
Applications/Examples of results
■Water supply ■Sewage, agricultural and fishing village drainage, sludge, wastewater, drainage ■Irrigation water ■Bridge-mounted piping ■Frost and condensation prevention pipes
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News about this product（2）
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Notice of Participation in "InterAqua 2026 17th Comprehensive Water Solutions Exhibition"
We will be exhibiting at the following trade show. Our company will showcase various types of polyethylene pipes. We sincerely look forward to your visit. Trade Show Name: InterAqua 2026 17th Comprehensive Water Solutions Exhibition
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Notice of Participation in the 2025 Hiroshima Waterworks Exhibition
We will be exhibiting at the following exhibition. Our company will showcase various types of polyethylene pipes. We sincerely look forward to your visit. Exhibition Name: 2025 Hiroshima Waterworks Exhibition
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MESCO (Mitsui Metal Engineering Co., Ltd.) is an engineering company that consistently handles everything from the planning stage of various industrial plants to project management, operational guidance, and maintenance. Utilizing its technology, it also engages in construction and product development in the materials and pipe businesses. Additionally, MESCO has a wealth of experience in overseas plant construction and leverages the comprehensive capabilities cultivated through its three businesses: engineering, pipes, and materials, to meet customer needs. Since 1969, the pipe division has been involved in the planning, design, manufacturing, and construction of piping systems primarily based on polyethylene composite pipes, while the materials sales division has been dealing with soundproofing materials and radiation shielding materials since 1982. In June 2012, these two divisions were integrated to form the "Pipe and Materials Division." We are committed to maximizing the synergy effects of this integration and striving daily to be a division trusted by our customers.