How To Determine & SpecifyThe Most AppropriateGas Supply SystemFor Your Laboratory

How To Determine & SpecifyThe Most AppropriateGas Supply SystemFor Your Laboratory

Before Starting - Determine the Following:Before Starting - Determine the Following:

• Instrument Types

• Flow Rates & Delivery Pressures

• Purity Requirements

• Flexibility of Instrument Placement

• Volume of Gases and Types

• Centralized or “In-the-Lab”

• Aesthetic Qualities

• 24/7 Operation

3’ Key Areas of DesignDetermine The Appropriate System for Your Laboratory

3’ Key Areas of DesignDetermine The Appropriate System for Your Laboratory

• SOURCE of Gas Supply

• Distribution of Gas

• Point-of-Use Control & Delivery

Gas Supply SourcesGas Supply Sources

• Bulk

• Mini-Bulk (Tonners)

• Dewars

• Cylinders

– individual or multi-cylinder manifolds

– centralized or in-the-lab

• Generators

Source Delivery MethodsSource Delivery Methods

• Cylinder Regulators

• Single & Multi-Station Manifolds

• Cylinder “SWITCHOVER” Systems

• Generators

Single-Cylinder Station ManifoldSingle-Cylinder Station Manifold

Chrysalis® Gas GeneratorsChrysalis® Gas Generators

Hydrogen Generator

Nitrogen Generator

Zero Air Generator

Gas Source SystemsGas Source Systems

Benefits of Centralized Gas Room

• Safety

• Better Utilization of Space

• Ease of Access

• Aesthetics

• Reduced Cost of Consumables

– Resupply Costs

– Cost of Gas

DistributionDistribution

Piping Material

• 316 SS tubing, electropolished ID, orbital

welded joints& compression connections

• Mill finished SS, cleaned for oxygen

service, compression connections

• Type K or L copper tubing, oxygen

cleaned with brass compression fittings

Stainless Steel TubingStainless Steel Tubing

Good for low ppm & ppb analysis

Advantages• Low affinity for moisture• Shorter purge time required• Smoother inner surface minimizes potential for contaminant entrapment

Disadvantage• Cost

Copper TubingCopper Tubing

Good for % analysis.

Advantage• Cost

Disadvantages• Inner surface irregularities (offgassing & particulates)• Moisture retention & offgassing• No standardized guidelines for use in labs

InstallationInstallation

• Welded/Silver Solder

• Sweated/Brazed

• Swagelock Fittings

• Continuous Roll Tubing

Point-of-Use ControlPoint-of-Use Control

Variables Needing Control

• Pressure• Flow• Purity• Gas Supply Status

Point-of-Use ControlPoint-of-Use Control

Critical Factors

• Bench Space• Ease of Installation/Maintenance• Flexibility• Safety• Aesthetics

Point-of-Use ControlPoint-of-Use Control

• Can be wall/ceiling mounted saving bench space• Delivered leak-checked & assembled for easy installation• Purifiers are vertically mounted eliminating “gas channeling”• Modular design enhances flexibility for future growth/changes• System meets all safety requirements• Panel system enhances the professional appearance of lab

Gas Storage Room

Centralized Supply SystemCentralized Supply System

With Continuous Roll Tubing - Lower Risk, Higher Purity

Complete Gas Supply SystemComplete Gas Supply System

2 Zones, 3 Generators, Alarm System, Six Instruments