Postma & Postma do electrical & mechanical repairs to Submersible,
immersible, centrifugal, process and close coupled pumps.
Pumps are dismantled and all parts are checked for wear,
e.g. impellers, wear plates mechanical seals, seal areas on rotors, bearing
areas on rotor and housings. The bearing and seal areas are compared to
standards and repaired if necessary. Mechanical seals are refurbished or
- See Motor & Armature Winding
Rotors and shafts are dynamically balanced and
impellers are statically balanced. –
See Dynamic Balancing
Pumps up to 90kW are pressure tested on or in our tank.
After testing, the oil in submersible pumps is checked for any
signs of water infiltration. Postma & Postma do laser shaft alignment on site to do
the alignment of the motor and pump to ensure vibration free