Franklin Electric STS Series 8-Inch Submersible Turbines


Franklin Electric, a global leader in groundwater pumping, is proud to introduce the new STS 8-inch line of submersible turbines.

The STS Series is an example of Franklin Electric’s efforts to continuously improve and upgrade product offerings. Like its predecessor the 6-inch, the new 8-inch STS submersible turbine features the STS bearing system including an extra-long discharge bearing pressed into the top bowl, newly designed spiral cutlass rubber intermediate bowl bearings, and a bronze motor bracket bearing. The turbine is available for immediate order and is a direct replacement for the 8-inch ST Series.

The 8-inch STS is available in flow series of 225, 275, 350, 450, 550, 700, and 1000 with motor sizes ranging from 5 to 200 hp. The series features premium materials including standard ductile iron bowls, ductile iron motor brackets, ductile iron discharges, investment cast 304 stainless steel impellers, 300 stainless steel sand collar, and copper bismuth bronze discharge and motor bracket bearings.

The 8-inch STS Series also comes standard with a new, low profile upthrust adjustment bolt, providing exceptional upthrust protection. The STS Series includes several options in order to customize the sub turbine and meet application needs. These customizations include three intermediate bowl bearing materials of rubber, bronze, or FKM elastomer and a 416 stainless steel shaft, standard shaft, or an optional chrome hardened shaft.

The new STS Series is ideal for irrigation, industrial, commercial, or municipal applications and is supported by the following literature, available for both download and order from the Franklin Electric website.

To learn more about Franklin Electric’s STS Series and our complete family of pump products, please contact your Franklin Electric Territory Manager, Field Service Engineer, Technical Service Hotline, or Franklin Electric’s website at