Ductile Iron (DI) grooved couplings are high-strength, mechanical pipe-joining components used for rapid assembly in fire protection, HVAC, and plumbing systems. Comprised of DI housings, a pressure-responsive gasket, and bolts, they create rigid or flexible joints by fitting into pipe grooves, rated for high pressures. Key Features and Description: Material: Made from ductile iron (often ASTM A536) for high tensile strength and durability. Components: Consists of two housing halves, a sealing gasket (typically EPDM), and nuts/bolts to secure the connection. Joining Method: Designed for use with rolled or cut-grooved pipe, eliminating the need for welding or threading. Types: Rigid Couplings: Maintain a strict, fixed connection that prevents bending or rotation, ideal for straight pipe runs. Flexible Couplings: Allow for controlled movement, handling expansion, contraction, vibration, and angular deflection. Applications: Widely used in fire fighting systems, HVAC systems, and water supply piping. Surface Treatment: Generally feature a red epoxy paint (RAL 3000) for corrosion resistance, with hot-dipped galvanizing as an option. Standards:
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Ductile Iron (DI) grooved couplings
2026-04-08T06:59:24
Ductile Iron (DI) grooved couplings are high-strength, mechanical pipe-joining components used for rapid assembly in fire protection, HVAC, and plumbing systems. Comprised of DI housings, a pressure-responsive gasket, and bolts, they create rigid or flexible joints by fitting into pipe grooves, rated for high pressures. Key Features and Description: Material: Made from ductile iron (often ASTM A536) for high tensile strength and durability. Components: Consists of two housing halves, a sealing gasket (typically EPDM), and nuts/bolts to secure the connection. Joining Method: Designed for use with rolled or cut-grooved pipe, eliminating the need for welding or threading. Types: Rigid Couplings: Maintain a strict, fixed connection that prevents bending or rotation, ideal for straight pipe runs. Flexible Couplings: Allow for controlled movement, handling expansion, contraction, vibration, and angular deflection. Applications: Widely used in fire fighting systems, HVAC systems, and water supply piping. Surface Treatment: Generally feature a red epoxy paint (RAL 3000) for corrosion resistance, with hot-dipped galvanizing as an option. Standards:
2026-04-08T06:59:24
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