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A dismantling joint is an essential modular pipeline component widely used in municipal water supply, drainage, fire protection, and industrial fluid transmission systems. Designed for convenient installation, dimensional adjustment, and future equipment maintenance, this flange-type telescopic fitting effectively addresses common construction challenges such as inaccurate pipe spacing, on-site assembly errors, and the difficult disassembly of valve groups. As a key supporting product of our complete ductile iron pipeline system, our dismantling joints are perfectly matched with ductile iron pipes, rubber gaskets, and other pipeline accessories to provide integrated pipeline solutions for global engineering projects.
All our dismantling joints are manufactured from high-quality GGG500 ductile iron that conforms to EN1563 international standards. Compared to ordinary cast iron products, they offer higher toughness, stronger pressure resistance, and improved deformation resistance. The outer and inner surfaces are coated with electrostatic epoxy powder, which is non-toxic, pollution-free, and compliant with drinking water transportation standards. This advanced anti-corrosion coating significantly enhances durability against oxidation, acid and alkali erosion, and coastal salt fog, ensuring long-term stable service in buried pipelines, pump rooms, and harsh outdoor environments.
Our dismantling joints are available in a full range of specifications from DN50 to DN3000 and support multiple pressure ratings including PN10, PN16, PN25, and PN40, fully complying with EN1092-2 flange connection standards. The flexible telescopic structure provides effective axial displacement compensation, which can absorb pipeline thermal expansion and contraction, foundation micro-settlement, and installation errors, making on-site assembly more convenient and efficient. Various sealing options are available, including EPDM, NBR, and SBR rubber gaskets, which are suitable for clean water, sewage, oily media, and conventional drainage working conditions.
Featuring a simple structure and high practicality, the dismantling joint has become a standard preferred fitting for pipeline engineering maintenance. During routine system overhauls or when replacing valves, water meters, and pumps, construction personnel can achieve adequate operating clearance by simply adjusting the tie rod sets, without the need to cut or reconstruct the original pipeline. This unique advantage significantly reduces project maintenance time, lowers construction costs, and enhances the overall safety and stability of the pipe network system. Additionally, the reinforced tie rod structure can withstand pipeline axial tension and mechanical vibration, protecting the normal operation of pipeline equipment.
Our dismantling joints are widely applicable to municipal water plants, sewage treatment projects, urban pipe network renovations, industrial circulating water systems, fire pipeline projects, and pumping station facilities. With standardized production processes and strict batch sampling inspections, every finished product undergoes hydraulic pressure testing, dimension inspection, and surface quality checks before delivery. We provide complete certification documents and test reports to assist overseas customers with customs clearance and project acceptance.
We also offer a range of customized services, including non-standard size processing, custom telescopic stroke adjustments, special anti-corrosion treatments, and customer logo engraving. Our standardized bundled packaging ensures that all products are well protected from collision and damage during long-distance ocean transportation. Thanks to our stable annual production capacity, rigorous quality control, and cost-effective factory pricing, our dismantling joints have been continuously exported to Southeast Asia, the Middle East, Africa, Europe, and other regions, gaining recognition from overseas contractors and pipeline distributors.
If you are looking for high-quality dismantling joints for your pipeline infrastructure projects, feel free to contact us. We are ready to provide professional technical guidance and competitive wholesale solutions.
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