By turning this screw, product is diverted back to the tank, dropping line pressure to zero. There is no need to disconnect the syphon system or to remove the leak detector from the system to service the STP.Īs a standard FE PETRO® feature, a vent screw is provided to bleed line pressure to zero when necessary. If ever required, the pump can be easily removed from the tank by unthreading three bolts. FE PETRO® STPs come standard with active air elimination, which eliminates air through the highest point in the pump head at all times when the pump is running, assuring air does not pass into discharge piping.įE PETRO ® STPs include a contractor electrical disconnect, which requires loosening only one bolt, allowing motor wiring to be disconnected without venting the dangerous tank vapors into the sump when servicing FE PETRO ® submersible products.
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