Spring clip specially engineered for air handling unit

1 min read

The prevalence of airborne pathogens associated with the global COVID-19 pandemic has spawned a host of air quality filtration regulations in commercial and residential buildings.

Many of these new air quality building regulations are putting an unprecedented demand on the air filter Industry to engineer primary and secondary air filtration solutions which must meet higher ratings. Many of these new air filters require specialised air filter holding clips.

A manufacturer of industrial and commercial air purification equipment approached Springfield Spring to help develop a special fastening solution for various HEPA filters used in their units. The challenge required Springfield Spring to engineer a fastener that could attach to the inside frame of their units with a feature to securely hold the HEPA filters in place. The clip design required the clip to be easily adjusted for various filter sizes, but also required easy hand manipulation to remove the air filters for maintenance and replacement.

After numerous Zoom meetings with the customer to determine the form, fit & function intent of the filter-holding clip, the Springfield team designed a smaller version of the standard 12-inch long filter clip. This smaller extension spring has a finger-pull handle feature with an integral mounting bracket. The spring required a flat surface along one plane of the clip with a specific spring force. The integral bracket on one end of the clip required a small modification to its opening to fit on to the sheet metal frame of the customer’s unit. Samples were sent for qualification. The following feedback from the customer affirmed the success of Springfield’s engagement and the final product.

The customer said: “This special mini extension spring and bracket works exceptionally well in our airbox purification units. Your service from the day we reached out to you, to the submission of samples, was just incredible. Please express our sincere thanks and gratitude to your entire engineering team for a job well done.”

EFC International is a partner and exclusive distributor of Springfield spring air filter clips.