Stainless Steel Semi Automatic Gas Auto Changeover Panel

A compact, modular semi‑automatic changeover panel engineered to deliver uninterrupted high‑purity gas supply by switching from a Primary to a Reserve cylinder/bundle when the primary source falls below a user‑set threshold. The operator selects the priority bank (left/right) manually; the panel performs pneumatic changeover automatically via differential pressure logic. Designed for trace‑level cleanliness, ultra‑low leak rates, and repeatable outlet pressure across a broad flow range.

Key Benefits

• Zero‑downtime changeover with clear bank status indication

• Cross‑industry compliance ready components and build options

• Scalable: single‑line, dual‑line, and multi‑gas manifolds; high‑flow variants

• Serviceable with modular valve/regulator cassettes

• Safety‑first: integral relief, slam‑shut (option), line isolation, and purge

•  Typical Applications

• Automotive / Engine Emissions: zero/span calibration gases, burner air, low‑ppm NO/CO/HC blends, oxidizer/fuel switchover

• Pharmaceutical: process N₂, sterile air, CO₂ for incubators/bioreactors, O₂ for culture; cleanroom purges

• CVD/PVD & Diamond: UHP H₂, N₂, Ar, He, CH₄, BCl₃*, Cl₂

• Semiconductor (UHP):SiH₄* (with external safety), inert/oxidizer panels, analytical carrier gases, purge panels

• Aviation/MRO: O₂/N₂ service carts, leak‑check benches, inerting

• Welding/Cutting: O₂, Acetylene*, LPG*, Ar/CO₂ mixes; industrial series only

• Medical: O₂/N₂O/Air/CO₂ distribution headers (regional standards options)

• Automotive Emissions: offer dual‑stage regulation for ultra‑stable span gases; add 0.5 µm filter at outlet; incorporate bank‑empty contact to LIMS.

• Pharma: choose HP‑I with electropolished tubing and 316L wetted path; cradle‑to‑panel purge for bioreactor CO₂.

• CVD/PVD/Nano/Diamond: UHP‑S with VCR ends; specify compatible alloys (e.g., Hastelloy) for halides; N₂ purge block and interlocked vent.

• Semiconductor UHP: UHP‑S with diaphragm valves, EP 10 µin, 1×10⁻⁹ leak spec, particle & moisture certs.

• Aviation: oxygen‑service brass or SS; shock‑mounted panel; MIL‑style connectors for transmitters.

• Welding/Cutting: HF‑X with high‑flow regulators, slam‑shut, arrestors; oxygen‑cleaning mandatory for O₂.

• Medical: dual header with automatic changeover; color‑coded bank ID; alarm contacts compatible with area alarm panels; use medical gas specific outlets and labels