A double socket coupling is a pipe fitting designed to connect two plain-ended pipes of the same diameter, providing a secure, leak-proof joint. It is widely used in water supply, drainage, and industrial piping systems.
Core Parameters
Material
- Common materials: Ductile Iron (EN-GJS-500-7), Stainless Steel (ASTM A276), or PVC-U (for non-metallic systems).
- Internal lining: Cement Mortar, Epoxy Coating, or ZN/Al Coating for corrosion resistance.
Size Range
- Nominal Diameter (DN): DN 80 to DN 600 (common range).
- Custom sizes available up to DN 1200 for specialized applications.
Pressure Rating
- Standard pressure classes: PN10, PN16, PN25 (1.0 MPa, 1.6 MPa, 2.5 MPa).
- Higher pressure ratings (e.g., PN40) available upon request.
Standards & Certifications
- Compliant with EN 545 (ductile iron pipes), ISO 2531, AWWA C110/C111, or ISO 4422 (for PVC).
Temperature Range
- -20°C to +120°C (varies with material; PVC limited to 60°C).
Joint Type
- T-Type (bolted gland with rubber seal) or K-Type (mechanical joint with wedge-action rings).
Key Features
- Dual-Socket Design: Accommodates two pipe ends without welding or threading.
- Flexibility: Allows slight angular deflection (typically ±3°–5°) for alignment adjustments.
- Leak Resistance: EPDM or NBR rubber gaskets ensure a tight seal under pressure.
- Low Maintenance: Corrosion-resistant materials extend service life.
Typical Applications
- Water and wastewater pipelines.
- Firefighting systems.
- Industrial fluid transport (chemicals, slurries).
Keywords
300LB 304 Material Stainless Steel Socket Coupling Full Coupling
A double socket coupling is a pipe fitting designed to connect two plain-ended pipes of the same diameter, providing a secure, leak-proof joint. It is widely used in water supply, drainage, and industrial piping systems.
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