RANGE OF SPRING-ENERGIZED SEALS

Bal Seal Engineering Inc. is a global provider of custom-engineered sealing, connecting, conducting and shielding solutions to the medical industry. Products include Bal Seal spring-energized seals in a wide range of materials and sizes, Bal Conn electrical contacts and Bal Shield EMI/RFI shielding and grounding elements. The spring-energized seals are precision-engineered from PTFE, PEEK, UHMWPE and other specially-formulated materials. They feature a Canted-coil spring energizer that provides a constant working range of deflection to deliver longer, more effective service life. The seals can be designed with a broad range of lip and groove configurations to maximize flexibility or ensure multiple contact surfaces that result in lower friction for various dynamic applications.

The physical and material properties of these seals enable them to perform under a wide range of pressure and speed conditions. These seals can help ensure the safe, reliable operation of insulin pumps, MRI equipment and surgical hand tools.

As an example, in this insulin pump application, a Bal Seal spring-energized seal is installed on the pushrod, which is used to precisely deliver dosages to the patient. The seal keeps the insulin under pressure, and prevents damage that could be caused by fluid leaking into the motor assembly. An integrated O-ring eliminates unwanted motion and further minimizes the potential for leakage along the outer diameter.

A canted-coil spring with engineered insertion and breakaway force is used to latch and hold the insulin cartridge in place during the dispensing process.

Bal Seal Engineering Inc.
Foothill Ranch, CA
balseal.com