Ductile Iron Flanged Double-Sphere Rubber Expansion Joint “Rust-Resistant”
The official website of Shanghai Songjiang Vibration Absorber Group Co., Ltd. introduces a new product, the Ductile Iron Flanged Double Sphere Rubber Expansion Joint “Rust-Resistant.” Songjiang Group offers a novel Ductile Iron Flanged Double Sphere Rubber Expansion Joint with flanges made of QT450 ductile iron material, which is known for its excellent plasticity and toughness. This material is highly popular in the field of firefighting pipe fittings.
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QT450 ductile iron is a type of ferritic nodular cast iron known for its higher ductility and plasticity. It exhibits a transition from ductile to brittle behavior at low temperatures but still maintains relatively high low-temperature impact values. Additionally, it offers a degree of resistance to sudden temperature changes and corrosion.
QT450 ductile iron finds various applications, including in agricultural machinery for plowshares, plow pillars, differential housing, and more. It is also used in general machinery for components like valve bodies, high and low-pressure cylinders, and can even be utilized for steel caps in power transmission lines.
Ductile iron, characterized by its carbon in the form of spherical graphite, boasts mechanical properties that surpass those of gray iron and approach those of steel. It is valued for its excellent casting, machining, and wear resistance, as well as its inherent elasticity. As a result, it is widely used in the manufacturing of high-end castings such as crankshafts, gears, pistons, and various mechanical components.
Double–Sphere Rubber Expansion Joints have several advantages, including:
The product’s longer design provides excellent shock absorption and noise reduction compared to single-ball joints.
They exhibit outstanding flexibility in accommodating expansion and contraction in pipeline systems.
Double-ball joints have a longer lifespan and are more durable than single-ball joints.
They are widely used abroad, indicating their popularity.
They are compact, lightweight, and easy to install and maintain.
After installation, they can absorb lateral, axial, and angular displacement caused by pipeline vibrations, without being limited by pipe misalignment or non-parallel flanges.
They reduce noise generated by pipeline and pump vibrations, exhibiting strong vibration-damping capabilities.
The use of seamless high-pressure rubber in the joints, along with the option to choose different rubber materials, effectively prevents corrosive media from eroding the inner walls of the joint, thereby enhancing its lifespan.
Double-ball rubber joints offer excellent overall performance and are widely used in various industries, including chemical, construction, water supply, drainage, petroleum, heavy and light industries, refrigeration, sanitation, plumbing, firefighting, and power projects.
They can be manufactured in various types based on different materials, such as acid-resistant, alkali-resistant, corrosion-resistant, oil-resistant, high-temperature-resistant, radiation-resistant, wear-resistant, and aging-resistant, making them suitable for various media and environments.
These advantages make double-ball rubber joints essential components in many pipeline systems, helping to reduce vibrations, lower noise levels, enhance durability, and meet the diverse needs of different industries.
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