Centralized Laboratory Gas Supply And Laboratory Gas Distribution System With Automated Gas Changeover Manifold

Centralized Laboratory Gas Supply And Laboratory Gas Distribution System With Automated Gas Changeover Manifold

A centralized laboratory gas supply system delivers specialty and process gases from a single secure location to multiple points of use throughout the laboratory. Instead of placing individual cylinders near each instrument, gases are stored in a dedicated gas room or outdoor compound and transported through a carefully designed pipeline network.

The laboratory gas distribution system typically consists of high-purity stainless-steel tubing, pressure regulators, isolation valves, filters, and point-of-use panels. This arrangement improves safety by keeping high-pressure cylinders away from work areas, reduces clutter, and maintains consistent gas purity. Proper design also includes leak detection, emergency shut-off valves, and clear labeling.

A key component of modern systems is the automated gas changeover manifold. This device continuously monitors the pressure of the primary cylinder bank. When the primary supply approaches empty, the manifold automatically switches to a full reserve bank without interrupting the gas flow. Operators receive visual or electronic alerts and can replace the empty cylinders at a convenient time. Fully automatic versions often include remote monitoring and data logging for greater reliability.

Together, a centralized supply, well-engineered distribution network, and automated changeover manifold provide continuous, safe, and high-purity gas delivery. These systems are widely used in analytical laboratories, research facilities, and cleanrooms where uninterrupted operation and contamination control are essential. Proper installation and regular maintenance ensure long-term performance and compliance with safety standards.

 

Technical Data

Model	JW-500-LGS
Specification	W800*D633*H2172
Special gas cabinet size	Control power supply: 220VAC, 50HZ, 500W, heating power supply: 220VAC, 50HZ, 1-6KW
Control cabinet power supply	PN2,1/4”MVCJ
Purge	HPN2,1/4”MVCJ
High pressure holding	GN2.1/4” MVCJ
Vacuum	1/2” MVCJ
VENT drain pipe	CDA driver, 1/4″ SWG
Pneumatic air source	OD 150MM, silane 810m/hr; others 204m3/hr
Cabinet ventilation	Automatic switching, automatic purging, explosion-proof and anti-leaving cabinet, explosion-proof self-locking door, explosion-proof glass observation window, leakage alarm, remote cut-off, negative pressure alarm
Operation interface	10″ color touch screen

 

Features:

Functionality: Specially designed for flammable, toxic, or corrosive gases such as hydrogen, ammonia, and chlorine.
Applications: Critical environments such as semiconductor fabs, special gas labs, and research institutions with stringent safety requirements.
Control Method: Fully automated with PLC control, including gas sensors, exhaust fan interlocks, fire control systems, and access control.
Safety Features:
1)Explosion-proof electrical components
2)Ventilation and exhaust control
3)Combustible/toxic gas detection and alarm interlocks
4)Emergency shut-off valves
5)Optional fire suppression or gas purification modules

 

Optional
*UV/IR Flame Detector
*Cylinder Shutboy
*Panel heating
*Ethernet communication module
*Weight Scale
*Excess Flow Switch

Jewellok specializes in fully automatic and semi-automatic GC gas cabinets, BSGS gas cabinets, VMB gas cabinets, TMA gas cabinets, Scrubber tail gas treatment cabinets, gas distribution cabinets, VDB gas cabinets, and VDP gas cabinets, suitable for gases such as SiH4, NF3, NH3, N2O, and HCI.

Jewellok specializes in the design and manufacture of gas handling equipment for laboratories and semiconductor facilities. Its product range includes fully automatic and semi-automatic GC gas cabinets, BSGS gas cabinets, VMB gas cabinets, TMA gas cabinets, scrubber tail gas treatment cabinets, gas distribution cabinets, VDB gas cabinets, and VDP gas cabinets.

These systems safely store, control, and deliver specialty gases. Fully automatic models offer advanced monitoring, remote control, and automatic cylinder changeover. Semi-automatic versions provide reliable operation with essential safety features at a lower complexity level.

The cabinets are engineered for hazardous and corrosive gases commonly used in process and analytical applications, including silane (SiH₄), nitrogen trifluoride (NF₃), ammonia (NH₃), nitrous oxide (N₂O), and hydrogen chloride (HCl). Materials and seals are selected for chemical compatibility, while leak detection, emergency shut-off, and ventilation ensure operator safety.

Scrubber tail gas treatment cabinets remove residual toxic or reactive gases before exhaust release. Gas distribution, VDB, and VDP units efficiently route gases from bulk sources to multiple points of use with precise pressure and flow control.

Overall, Jewellok’s solutions support ultra-high-purity delivery, minimize contamination risks, and meet strict safety standards required in modern cleanrooms and research laboratories.