Choosing a Nitrogen Generator Supplier

Guidelines you MUST know for choosing a Nitrogen Generator Supplier

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[dropcap]On-site nitrogen production is simple and economical for businesses to eliminate rental charges, transportation expenses, labor costs, and evaporation losses of bulk systems. Nitrogen generators assist a wealth of businesses with their day-to-day process. Some industries that have benefited from nitrogen generators are packaged food, wineries, and beer dispensing. Several industries utilize nitrogen generators for fire/explosive preventative measures in various aspects of their particular industries. If nitrogen generators are of any interest to you and you have decided to consider nitrogen generators as viable option for your business/or are looking to make the switch from your current system, there are a few questions that you should ask the businesses that you are pursuing. When choosing a nitrogen generator supplier, make sure you ask the following questions:[/dropcap]

1. How long have you been in business? There are many companies that have recently entered the industry of nitrogen generators. Many of these companies have only been selling nitrogen systems for a year or two. The majority of these new nitrogen generator suppliers are in the nitrogen tire inflation market and are now trying to sell in the industrial market. Look for stable companies whose only business is nitrogen gas generation and have been in the business for a minimum of 5 years. Companies with long-term reputations are your best bet.
2. What nitrogen generator systems do they offer? The best nitrogen generators are PSA (Pressure Swing Adsorption) and Membrane systems. Make sure the supplier you choose offers and is knowledgeable in both of these systems. This will ensure you are getting the best equipment to fit your application instead of trying to fit the application to the equipment.
3. What country is the equipment being manufactured in? Some companies are importing nitrogen generators from China. These units typically do not meet many of the North American standards (ie. Electrical – UL & CSA / Pressure Vessels – ASME & CRN).
4. If my nitrogen demand increases, will I need to purchase a new one? Ask if the equipment is modular and/or expandable in the future should your nitrogen demand increase. There are many nitrogen generators available now whereby simply adding an additional module can help to increase the capacity of the system without great expense. Make sure your nitrogen generator system is a long-term investment.
5. What other businesses like mine have you sold nitrogen generators to? You want to make sure the company you are dealing with is familiar with your industry. Nitrogen generators are available with numerous options and you want to make sure the supplier knows what is required (ie. A sterile gas filter is not required in most applications but it is recommended in the food industry).

Use these general guidelines when seeking a nitrogen generator supplier as well as have a strong understanding and ask lots of questions if you are unsure of the various types of nitrogen generators that are available to you. The more informed you are of the product you seek and the capabilities of the supplier, the more confident you will feel when investing in a nitrogen gas generation.

Contact Compressed Gas Technologies for more information.

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Any time you need to purchase high end laboratory equipment, the sales process can be very stressful.  Sales representatives are looking to fill their quotas in order to receive their commissions and to reach production goals.  In order to make sure that you get the best deal on the right sample concentrator, make sure you ask these six questions in order to potentially save thousands of dollars while also making sure you are ordering the best possible instruments for your specific lab and testing methodologies.

For more Lab Nitrogen Generator​information, please contact us. We will provide professional answers.

Question # 1:  Do you offer any discounts on your equipment if I buy multiple units?

If you are looking to purchase just one lab evaporator and you ask for a discount, the majority of the time you will be met with a resounding “no.”  However if you work for a lab that has multiple locations throughout the country that could all use new nitrogen evaporators, or you can justify buying multiple units, often times you can qualify for distributor discounts which can save you anywhere from 5-10% off the listed price of the nitrogen evaporator.  Asking this one question and being flexible with the manufacturer has the potential to save you thousands of dollars.  At the end of the day, the sales representative is looking to make the sale, and if you offer something that he can’t pass up such as a multiple instrument order or same day payments (credit cards or bank transfers) then may receive a discount on your blow down evaporator purchase.  

Question # 2: How long has the manufacturer been in business for?

There are many manufacturers in the world that can take an instrument and make a copy of it for a fraction of the cost.  While this may seem advantageous for the end user so he or she may be able to save some money, you should avoid knock offs at all costs and always purchase from a reputable manufacturer.  Knock-offs cut costs by using inferior materials and parts, which in the long run can jeopardize the operation of the instrument which can also potentially contaminate your samples.  The longer the company has been in business the better; typically you should look for a manufacturer that has been producing sample preparation equipment for over 30 years.  If a company has been in business for over 30 years, it’s because they have good products and know what they are doing. 

Question # 3: What is the instrument made out of?

You should only be using evaporators which are made out of laboratory grade stainless steel or anodized aluminum.  Any evaporation system which is constructed primarily of plastic has the possibility of being corroded if your laboratory uses any acidic procedures.  Acid on plastic does not work, and can easily destroy an expensive piece of equipment.  Open aluminum and steel can oxidize and lead to potential sample contamination.  

Question # 4: Do you offer an acid resistant version of your nitrogen evaporator?

The one thing I have learned from working within the analytical chemistry field is that people will put anything and everything into a laboratory evaporator, including sulfuric acid.  While your applications may not call for such aggressive solvents, the manufacturer should be able to offer an acid resistant version of their equipment for any corrosive applications.  This usually entails a coating of Teflon on all parts which are in contact with the solvent.  While this may not seem very important, if you are using corrosive chemicals within a lab evaporator, a simple coating of Teflon can add years to the longevity of the instrument.  

Question # 5: Do you offer automated equipment?

The biggest shift in the sample preparation equipment industry over the next few years will be automation.  Automatic equipment has so many benefits to an analytical laboratory that it would be foolish not to seek out automated solutions.  Whether you are looking to increase your time savings or increase efficiency within a laboratory setting, automatic equipment will be able to provide many advantages compared to a manually operated laboratory evaporation system.  An automatic nitrogen evaporator should be able to remove your samples from whichever heating medium you choose once a programmable time cycle has been completed.  Also, check to see if the evaporator has the ability to shut off its heat and nitrogen source independently in order to fully stop the evaporation process.  

For more information, please visit Roots Blower.

Question # 6: Can you do custom orders?