The new three-dimensional expansion joint for coal powder pipelines, also known as the coal powder pipeline expansion joint, is suitable for coal powder, hot gas solid-liquid two-phase flow, with flow rates of 15∽30m/s, operating temperatures of 60°C, and wind pressures of ≤500mmH2O. It provides displacement compensation in any direction for primary, secondary, and tertiary wind pipeline sections. This expansion joint is used in power generation units ranging from 100∽600MW, addressing the issue of coal powder leakage and ensuring the unit's normal and safe operation.

The new three-dimensional expansion joint for coal powder pipelines is convenient for installation and maintenance, features simple hangers, has a long service life, is cost-effective in overall investment, and is resistant to high temperatures. It prevents powder leakage and accumulation, offers low displacement stiffness, can absorb displacement in any direction, has good flexibility, and ensures the free expansion of boilers and piping systems.

The new three-dimensional expansion joint for coal powder pipelines is designed to absorb dimensional changes in pipelines and containers caused by thermal expansion and contraction, as well as to synchronize the settling of high-rise buildings and related equipment. This product features a compact structure, high pressure-bearing capacity, large compensation capability, the ability to withstand axial reciprocating motion, lateral displacement, and angular displacement, as well as the ability to regulate and control pressure, reduce noise, and minimize vibration.

The new three-dimensional expansion joints for coal powder pipelines are widely applicable in industries such as oil, chemicals, cement, mining smelting, instruments and meters, aerospace, shipping, construction, power electronics, heating pipelines, and mechanical manufacturing.

We can produce various non-standard pipe fittings and drawing pipe fittings according to customer requirements.