Ductile Iron Pipe Joints Universal Coupling Art.No.:VJ1601

Product details

Ductile Iron Pipe Joint Universal Coupling. A ductile iron universal joint pipe coupling is a specialized mechanical pipe fitting designed to connect sections of pipe while accommodating significant angular deflection, axial movement (extension/compression), and sometimes limited parallel offset. Its core component is a universal joint mechanism, typically featuring cross-shaped pin bearings (spider), housed within robust ductile iron housings cast onto the ends of the pipe spigots or sockets. The primary function is to provide flexibility within pressurized pipeline systems. It effectively absorbs vibrations, compensates for thermal expansion/contraction, and allows for pipeline settlement or misalignment without inducing damaging stresses into the pipes or adjacent structures. The use of ductile iron (also known as nodular cast iron) is crucial, as this material offers an exceptional combination of high tensile strength (similar to steel), excellent toughness, superior impact resistance, and good castability compared to standard grey iron. This makes the coupling highly durable and suitable for demanding applications involving high pressures, external loads, and potential shock. These couplings are widely employed in critical infrastructure such as water supply and distribution networks (potable water, wastewater), industrial process piping, pump discharge lines, and applications connecting to equipment prone to movement or vibration (e.g., pumps, turbines, engines). Their robust ductile iron construction ensures long-term reliability under harsh operating conditions. Proper lubrication of the universal joint bearings is essential for maintaining smooth articulation and maximizing service life.

About the supplier

Shengshi Phoenix Fluid Control Co., Ltd. 2 products total Visit supplier page