TL;DR
A torque arrestor is a rubber or plastic spider clamped onto the drop pipe just above a submersible well pump to absorb the twisting reaction each time the motor starts and to center the assembly in the casing. Without one, repeated start-up torque chafes the drop pipe and pump wire against the casing wall until insulation wears through or a fitting unthreads.
What it means
A torque arrestor is a rubber or plastic spider clamped onto the drop pipe just above a submersible well pump to absorb the twisting reaction each time the motor starts and to center the assembly in the casing. Without one, repeated start-up torque chafes the drop pipe and pump wire against the casing wall until insulation wears through or a fitting unthreads. Installers size it to expand snugly against the casing diameter, commonly 4 to 8 inches, and add pipe-mounted cable guards above it on deep sets.
Where it sits in the glossary
Torque arrestor is part of the Trade jargon group inside the ProFix Directory glossary. Browse every term in this category from the glossary index.
Why Ohio homeowners should know it
This is a term Ohio homeowners encounter when reading contractor quotes, hiring paperwork, or inspection reports. Understanding it well enough to ask one good follow-up question is usually all the protection a homeowner needs.
ProFix Directory keeps definitions short on the index page and saves the longer context — Ohio-specific rules, where the term comes from, and which ProFix tools touch it — for these per-term pages so the term is easy to cite and easy to share.
ProFix tools that touch this term
See also
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