ISO 2531 Double Socket Bend, EN 545, GOST 2531, 5525, PN10-PN40

‌Double Socket Elbows‌ are pipe fittings used in piping systems to change flow direction. They feature ‌socket ends‌ (i.e., "bell mouths") on both sides, enabling sealed connections by inserting pipes or fittings. Common materials include cast iron, PVC, and stainless steel. Based on bending angles, they are classified as:

1. ‌45° Double Socket Elbow‌: Suitable for minor directional changes, offering lower fluid resistance.
2. ‌90° Double Socket Elbow‌: Provides right-angle turns with compact space occupancy but higher localized resistance.

Compared to ‌single socket elbows‌ (one socket end and one spigot end), the double-socket design offers more flexible installation without additional adapters. Versus ‌flanged elbows‌, socket connections save space and reduce costs, though their pressure rating typically does not exceed ‌1.6 MPa

 

Specification

Standard: EN 545, ISO 2531, GOST 2531, GOST 5525
Pressure Range: PN10, PN16, PN25, PN40
Flange Drilling: EN 1092-2
Bitumen Painting (min.70μm) according to BS 3416
Internal Ordinary Portland Cement Mortar Lining Comply with ISO 4179
External Zinc Coating (min.130g/m2) according to ISO 8179