Shanghai – September 23, 2026 -- Shanghai Chengwei Semiconductor Equipment Co., Ltd. has launched a laboratory central gas supply system capable of delivering gas purity up to 99.9999 percent, targeting semiconductor R&D facilities, university labs, and precision testing centers.
System consolidates scattered cylinders into a single external distribution station
The design removes individual gas cylinders from active research areas, cutting associated safety hazards while freeing floor space and streamlining lab workflows.
316L stainless steel tubing and orbital TIG welding eliminate contamination risks
Every internal gas fluid loop uses seamless electropolished 316L stainless steel tubing, chosen to eliminate inner surface roughness and prevent particle shedding or moisture entrapment. Pipeline joints are fused through automated orbital tungsten inert gas welding under a constant ultra high purity argon back purge, removing internal weld oxidation.
Automated changeover manifolds prevent supply interruptions during long-term testing
Fully automated changeover manifolds switch between primary and reserve cylinder banks without pressure drops, supporting uninterrupted operation during extended experiments and analytical instrument runs. A programmable logic controller linked to a touchscreen interface lets technicians monitor delivery pressures, flow rates, and system status in real time.
Leak detection and automatic shut-off valves isolate gas migration at the source
The gas pipeline system incorporates ambient leak detection networks, automatic nitrogen vacuum purging sequences, and pneumatically activated emergency shut-off valves. If a downstream leak or exhaust drop is detected, the controller immediately isolates gas migration at the main source enclosure to maintain compliance with factory safety and environmental codes.