PE Butt Fusion Drainage Fittings Ball Branch

Main Functions

Optimizing Water Flow Transition and Reducing Vortex/Cavitation
The spherical branch structure allows the branch pipe flow to merge into the main pipe in a smooth, rounded transition manner. This avoids the vortex (vortex), cavitation (cavitation), or turbulence generated by traditional sharp-angled tees, reduces air entrainment, and ensures stable formation of full-bore flow under siphonic negative pressure.
Reducing Negative Pressure Loss and Improving Drainage Efficiency
In siphonic systems (negative pressure -0.05 to -0.08 MPa, high flow velocity 3-6 m/s), the ball branch reduces local head loss, resulting in smoother water flow. This increases the overall drainage capacity of the system (up to 20-30% higher than ordinary tees), allowing for smaller pipe diameters or fewer vertical stacks.
Preventing Water Seal Destruction and Odor Backflow
The spherical transition minimizes the induced siphon effect during branch inflow, preventing excessive negative pressure in the main stack from drawing dry the branch water seals (floor drains or P/U-bends). This maintains the independent water seal height for each sanitary fixture, completely preventing odor and backflow.
Adapting to Same-Floor Drainage Layout of “Horizontal Branch Pipes + Vertical Stack Connection”
In same-floor systems, horizontal pipes are generally level (no slope or minimal slope). The ball branch facilitates smooth connection of horizontal branch pipes (from floor drains/fixtures) to the vertical stack, reducing bend resistance and supporting the “independent property rights per floor, no floor penetration” principle.