Air Products Home

Ask the Experts Metals

My nitrogen-hydrogen flow control panel seems to be working properly, but is there anything I should be checking?

Don Bowe Don Bowe
Sr. Applications Engineer

There are many aspects of a flow control or blend panel that require periodic maintenance for proper functionality—especially those related to its safe operation.
You should check the operation of the solenoids to help verify that the combustible gas flow is automatically turning off and the inert gas purge is automatically turning on as intended. They should be tested in accordance with recommended maintenance frequency—typically every six months. Plus, you should rebuild the solenoids as needed. It’s also important to check the purge timer setpoint to help confirm that it can adequately purge the furnace. And you should verify and document the low-flow alarm setpoints on the inert gas purge and process flows.

These are just some of the items that should be reviewed on a regular basis. For more information, please give us a call at 800-654-4567.

← Back to Sintering and Powder Metals
An error has occured, please fix the highlighted fields.
To request a quote or for more information about Air Products, please fill out the form below, and an Air Products representative will contact you shortly.
Please use the form below to contact us.

What can we answer for you?

  1. What kind of inquiry?

If you would prefer to contact us by phone, you can call any of our Air Products locations worldwide by visiting Worldwide Locations & Phone Numbers.


This site uses cookies to store information on your computer. Some are essential to make our site work; others help us to better understand our users. By using the site, you consent to the placement of these cookies. Read our Legal Notice to learn more.