J-Class Tri-Seal Submersible Pumps
What Is TRI-SEAL Technology?
TRI-SEAL technology was developed by Franklin Electric exclusively for use in the Sandhandler line of submersible pumps. As the name implies, TRI-SEAL involves three-stage protection against grit and abrasives without sacrificing pump efficiency and output.
- Seal one is a phenolic washer, providing an axial seal that delivers thrust-down protection and prevents against fluid recirculation.
- Seal two is a captured 300-series stainless steel hub that floats with the impeller rather than remaining stationary, keeping a positive seal at all times.
- Seal three is a stainless steel impeller eye seal providing a final level of protection against recirculation and wear from pumping abrasives.
What this means is that all components of the TRI-SEAL filtration pump work together to deliver the best possible pump operation, even in water wells where grit and sand create a problem for conventional devices.