Using double-ended bulkhead unions for laboratory gas line wall penetrations is not optional—it solves three critical problems that single-ended fittings cannot address:
- Sealing and safety: The union has two sealed ends (one on each side of the wall) that prevent gas leakage through wall gaps. This is especially important for toxic or flammable gases (e.g., carbon monoxide, methane) to avoid indoor air pollution or fire risks.
- Pipe alignment: It ensures the gas line remains straight during wall penetration, reducing stress on the pipe and preventing joint loosening caused by pipe deformation over time.
- Easy maintenance: If the pipe needs to be replaced or repaired, the union can be disassembled without damaging the wall, saving maintenance time and costs compared to cutting and re-welding pipes.
