MOTOR PROTECTION
Protectors & seal sections
ESP motor protectors and seal sections limit formation-fluid ingress, accommodate motor-oil volume changes and transfer torque between the motor and pump.
GEOTHERMAL PROTECTORS
Tandem design & specifications.
Tandem configurations combine labyrinth and diaphragm chambers between the pump and motor.
| Parameter | Catalogue specification |
|---|---|
| Housing outside diameter | 172 mm |
| Shaft diameter | 43 mm |
| Oil capacity | 30 L |
| Axial load options | 2,300 / 3,200 kgf |
GEOTHERMAL / SEAL-SECTION DESIGN
How the protector works.
Separate the fluids
Diaphragms and mechanical seals form barriers between well fluid and the motor’s internal oil.
Accommodate expansion
Chambers allow for changes in motor-oil volume as the system heats and cools.
Support the assembly
The protector transmits torque and provides thrust-bearing support within the ESP assembly.
| Code / item | Catalogue meaning |
|---|---|
| LSB / BSL | Labyrinth and diaphragm (bag) chamber sequence |
| STL / HL | Standard / reinforced thrust-bearing configuration |
| HT / UHT | 160 °C / 200 °C thermal configuration |
The catalogue also describes sand-drainage holes, a sealing cup and bypass pressure balancing. Confirm the chamber layout and thrust capacity for the selected assembly.
OILFIELD SEAL SECTIONS
Configuration options.
Modular single-housing and tandem configurations include diaphragm, labyrinth and thrust-bearing arrangements for different drive assemblies.
| Option | Catalogue description |
|---|---|
| High-temperature design | Hot-well configuration up to 160 °C for the described modular seal section |
| High-speed variant | Operating rotational frequency up to 12,000 rpm for designated configurations |
| Bearing options | Standard, reinforced and tilting-pad thrust-bearing arrangements |
| Reduced-section variants | Configurations for restricted geometry and other special assembly layouts |
Select the protector model, chamber layout, temperature configuration and thrust-bearing capacity together with the motor and pump.
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