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Gas Delivery Systems

Equipment that Delivers 

Praxair designs and builds a wide range of gas delivery systems to fit your application needs. From changeover systems and switchovers to control panels and manifolds, we have what you need to optimize your gas delivery.

See below for an overview of our gas delivery systems, then visit the Gas Equipment section of our catalog for details on the products we sell. 


Bulk Gas Delivery Systems

We’re revolutionizing flow rates for ammonia as well as many other specialty gases. With our SureFlow™ Bulk Specialty Gas Supply Systems and Controllers, we are significantly reducing the number of cylinder changeouts required by conventional systems — leading to improvements in uptime, production costs, purity levels and safety.

Our enclosed heating system and new silicone rubber heat blanket system allow for higher flow rates while maintaining controlled external ton container temperatures. These systems can be skid mounted to facilitate installation and movement around the facility, and can deliver continuous ammonia flows of 600slpm with peaks greater than 3000slpm.

Praxair SureFlow Bulk Specialty Gas Storage System

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Control Panels

We offer three-valve, five-valve and custom configured panels. All systems are mounted on brushed stainless steel that are mountable to any suitable surface. Each control panel features an integral check valve in the CGA connection and metal-to-metal diaphragm seal to protect your system from internal contamination during cylinder changeouts. And with low-wetted surface area, these control panels have minimal purge requirements. The three and five-valve regulators also offer purge capability to maintain the gas purity and help prevent contact with flammable and toxic gases.
Praxair Specialty Gas Control Panels

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Critical Purity Manifolds

The modular gas distribution system is a flexible manifold designed for centralized distribution of gases, regardless of facility constraints. Each station has an integral diaphragm valve for shut-off and gas purity protection. The modular design facilitates expansion as gas requirements increase. Each system comes complete with a flexible, all stainless steel pigtail with armor casing. The CGA connection on each pigtail has a check valve in the gland to prevent contamination and minimize purging requirements.
Praxair Critical Purity Manifolds

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Critical Purity Automatic Switchovers

The 5022 and 5026 Brass Series and 5023 and 5027 316L Stainless Steel Series high-purity automatic switchover systems are designed to provide a continuous supply of high purity gases to your laboratory, process or instrument.
Praxair Critical Purity Automatic Switchovers

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Dewar & High Pressure Cylinder Changeover System

The ProStar™ Platinum Series 8000 Automatic Dewar and High Pressure Cylinder Changeover System is designed to provide an uninterrupted flow of gas from two sources. When one source is in service, the other source is on standby. When the source is depleted, the changeover to the standby source occurs automatically. Once the changeover has occurred, a gas technician replaces the depleted source and turns the changeover regulator hand knob to the next standby source.

The Series 8000 system includes a line regulator to allow adjustment of the final delivery pressure. It also includes 6' stainless steel armor-jacketed flexible pigtails with CGA check valves, cylinder isolation and vent valves. This configuration gives the operator the capability to isolate a source from the changeover panel, allowing replacement of the source without having to shut down the system.

Praxair Dewar & High Pressure Cylinder Changeover System

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High Flow Automatic Changeover System

The brass 5031B and stainless steel 5031S Series high flow/high purity automatic changeover systems are designed to provide a continuous supply of high purity gases to your lab, processes and instruments. The Series 5031 incorporates two regulators set at different delivery pressures. Downstream line regulators are also recommended to help eliminate supply pressure effects.
High Flow Automatic Changeover System

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High Purity Automatic Changeover System

The brass 5028B and stainless steel 5028S Series high purity automatic changeover systems are designed to provide a continuous supply of high purity gases to your lab, processes and instruments. Typically the 5028 Series systems are used with one cylinder per side and because of pressure differential considerations, feature a line regulator.

The standard models come with flexible, all stainless steel pigtails with armor casing, Monel® lined for oxygen service. The CGA connection on each pigtail has a check valve in the gland to prevent contamination and minimize purging requirements. To connect more than one cylinder per side, manifold headers can be ordered separately.

Praxair High Purity Automatic Changeover System

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Laboratory Gas Cabinets

The 7000 Series gas cabinet enclosures are used to store gas cylinders and mount gas delivery panels for the safe use of hazardous gases. They provide a low cost method to contain any gas releases and achieve compliance of municipal and customer safety codes.
Praxair Laboratory Gas Cabinets

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Praxair's Multi-Gas Point-of-Use Panels

Our Multi-Gas Point-of-Use Panels allow for multiple gases to be effectively pressure-controlled to one or multiple instruments and use points in your laboratory.
Praxair's Multi-Gas Point-of-Use Panels

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Praxair's VersiGas™ Lab System

VersiGas™ Lab Systems offer today’s labs great flexibility when designing gas delivery systems aimed at meeting specific point-of-use gas concerns. As new instruments are added to meet increasing demands, gas piping systems can grow into a tangle of tubing, line regulators and traps, making it difficult to carry on preventative maintenance. VersiGas™ Lab Systems eliminate this concern and make it much easier to install gas handling equipment in your laboratory.
Paxair's VersiGas Lab System

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Protocol Stations

The 5029 Series Protocol Station is a regulator option designed for the convenient wall mounting of any ProStar® regulator to provide ease of use, prevent regulator damage and improve safety. The 5029 Series Protocol Station is available in brass or 316 stainless steel and comes complete with a 3-foot long flexible all stainless steel pigtail with armor casing. The CGA connection on the pigtail has an integral check valve in the gland to prevent internal contamination during cylinder changeouts. Should purging be desired, the gas block comes with a plugged port that can be removed and replaced with a diaphragm valve.

The 5029 Series Protocol Switchover Station combines all of the safety and convenience features of a standard Protocol Station with the added efficiency of a reserve cylinder. The Protocol Switchover Station valve assemblies allow for manual switching between a primary cylinder and reserve cylinder, and isolation of the depleted cylinder allows safe changeouts without backflow of gas through the pigtail.

The 5029 Series Protocol Alarm Station combines all of the safety and features of a standard Protocol Station with the added security of a remote alarm system. The Protocol Alarm Station will provide an audio-visual warning when a cylinder is nearly depleted. The alarm set point is easily adjustable to provide the level of security and notification required. A convenient side port allows the addition of a diaphragm valve for purging when changing cylinders.

Praxair Protocol Stations

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Semiconductor Gas Cabinets, Panels & Controllers

Praxair's one-, two- and three-cylinder gas cabinets are reliable, easy to use, and are designed with safety in mind. The cabinets feature self-retracting cylinder ramps for assisted cylinder changeouts, recessed cylinder scales and skylights for improved internal ambient lighting. They also offer PLC (SurePurge™) or Microprocessor (UltraPurge™) controllers with intuitive operation, minimum 140° door opening for unencumbered access, and replaceable bulkhead adapter plates for simplified installation.
Semiconductor Gas Cabinets, Panels & Controllers

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