An on-site nitrogen generator produces pure nitrogen from standard compressed air, replacing the need for a delivered supply in the form of high pressure cylinders, liquid mini tanks or bulk storage vessels. Nitrogen generators are used in a wide range of markets from food processing to power generation. Some of the benefits of a nitrogen generator include:
Enhanced safety without the need to store or handle high pressure cylinders
An on-demand supply eliminates downtime due to running out of gas or cylinder changes
Consistent flow, pressure, and purity
Compact, space-saving design
Low cost of ownership
Eliminates the expense and CO2 emissions associated with truck deliveries
There are two types of on-demand technologies for generating nitrogen gas: membrane and pressure swing adsorption (PSA). hwl air and gas offers both membrane nitrogen generators and PSA nitrogen generators.
Below are 11 frequently asked questions about Parker Nitrogen Generators offered by hwl air and gas:
Nitrogen generators express purity of nitrogen as 100% minus the percent of oxygen remaining in the gas stream. Why is that? In air, oxygen is the most reactive gas and is present in significant volume. The balance of gases are either trace or in the case of argon, not reactive. In addition, oxygen content can be easily and directly measured with an analyser. Therefore, a 99% nitrogen stream is really 1% oxygen and 99% nitrogen and other gases.
What is included in a nitrogen generator? Each nitrogen generator is preassembled with a pre-filter rated at 99.99% at 0.01 micron and a final filter sterile rated at 99.9999+% (6 log reduction). Membrane systems do not include a storage vessel. Built-in oxygen analysers are optional for both PSA and membrane systems.
How much electricity is required? HFX series membrane generators do not need electricity which makes them ideal for explosion-proof locations. If they include an oxygen analyser, they need minimal current rated at 230 VAC, 0.5A. The standard PSA nitrogen systems have an electrical rating of 230 VAC, 3.8A.
Do you offer testing certificates? Each generator is tested at the factory prior to shipping. A test report may be requested from Parker’s Technical Support Department by contacting hwl air and gas, who will request this on your behalf.
Do you offer support nationally? hwl air and gas are the master distributors and service agents for Parker Air and Gas Separation and have been providing service and support though out New Zealand for many years. Let us know where you are located and we can add you to our list of satisfied customers nationally.
How can I change purity or flow? A flow and purity label is affixed to the front panel of each Parker membrane generator. Simply adjust the flow control valve on the front panel to dial in the desired purity.
Why don’t Parker supply a digital HMI on membrane generators? Digital Human Machine Interfaces are popular and provide a large amount of information, however, they can be confusing to operate. Feedback from Parker customers indicates that a simple manual control interface is the most intuitive and most preferred.
Will I need to replace the Carbon Molecular Sieve in the PSA systems? Parker uses state of the art pre-filtration to protect the system and the highest quality carbon molecular sieve available. With proper maintenance and inlet air quality, the sieve should last for the life of the system.
If I have a question whom do I contact? hwl air and gas have engineers trained by Parker in our technical support department. Each engineer has vast experience in on-site gas generation applications and product troubleshooting. You can email the technical support department or call 07 8473487.
Are systems available for lease? Yes, ask your trained sales specialist to provide our favourable lease rates for your consideration. We also offer lease to own to reduce initial capital expenditure.