Torque Arrest for 4" to 8" Wells

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MSRP $35.00
Sale Price $17.50
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torque-arrestor
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torque-arrestor

Product Benefits

The Torque Arrestor is designed to protect your well system by preventing motor start-up torque from pushing the pump against the well casing, helping control unwanted rotation, restoring proper pump alignment during startup, and extending the life of the pump and other mechanical components by minimizing wear. Acting like a shock absorber, it helps lower risk of torque shock, supports the movement limits of the pump in the well, and offers practical insights into real-world well-system protection to reduce maintenance costs and support smoother pressure and water flow through the well system. This protective role is key in systems that rely on consistent pump control. It also helps the pump remain properly aligned as it starts and push water through the system. Customers use torque arrestors to help protect equipment life and reduce avoidable service issues.

A torque arrestor is used with submersible pumps—typically installed at the bottom of the well—to prevent motor start-up torque from thrusting the pump against the side of the well casing. Think of it as a shock absorber for your well system that helps protect the pump and other mechanical components, reduces wear, and can lower maintenance costs caused by equipment damage. Torque control devices are also used in other industries to protect gearboxes and rotating assemblies, and mechanical torque-limiting devices can disconnect or slip quickly to protect machinery. For well owners, installers, and contractors working with 4" to 8" wells.

Placement: The torque arrestor should be placed 1' or 2' above the pump. It works alongside the pressure tank, which maintains water pressure and helps limit pump cycle frequency. The well casing should extend at least 12 inches above soil to help protect the well system, and where the well is located also affects contamination protection. This helps reduce contamination risk and protect well water.

Installation: Place the torque arrestor around the drop pipe so that each half is spaced evenly.

Install the lower pipe clamp and tighten.

Install the upper pipe clamp (leave loose) and then push down on the torque arrestor to spread the center portion so it fits the inside of the casing, and it may also be used with plastic drop pipe where compatible, whether the pump is in a shallow setup or a deep installation where casing size and well depth determine how it should be positioned.

Just a snug fit, do not spread it so much that it is hard to get it in the casing. Then tighten the upper clamp. The upper clamp must be as tight as possible. This will make it easier to remove the pump at a later date and improve access for service. System layout may also depend on components such as a pitless adapter.

Pressure tanks store water and maintain air pressure, and typical well systems operate between 40 and 60 psi. A pressure gauge helps determine pressure issues and suction-side performance while assessing water quantity for household demand or pump cycling. Common tank options include conventional galvanized steel tanks, modern fiberglass tanks, and sealed diaphragm tank designs with a rubber bladder that separates air and water.

Specification

Manufacturer: Aqua Science

Model #: torque-arrestor

Universal Product Code: 777808061440

Shipping Weight: 1 lb

  • Fits 1" or 1-1/4" Drop Pipe

  • Compatible with 4" to 8" well casings

  • Supplied with 2 stainless steel clamps for secure installation

  • Includes AquaScience 8% Crosslink Resin

More Information
Model #torque-arrestor
ManufacturerAqua Science
Shipping Weight1
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What is the purpose of a torque arrestor?
A torque arrestor prevents motor start-up torque from pushing the pump against the well casing, acting like a shock absorber.
What sizes of well casings does this torque arrestor fit?
It fits well casings ranging from 4" to 8".
What size drop pipes are compatible with this torque arrestor?
It is compatible with 1" or 1-1/4" drop pipes.
How should the torque arrestor be installed?
Place it around the drop pipe, install and tighten the lower clamp, adjust the center portion, and then tighten the upper clamp securely.
Are any special tools required for installation?
No special tools are needed, but ensure clamps are tightened securely.
Can I install the torque arrestor myself?
Yes, but ensure proper installation to avoid issues. Consult a professional if unsure.
What materials are included with the torque arrestor?
It comes with two stainless steel clamps for secure installation.

Installation Brief

Ensure proper installation of the Torque Arrestor to protect your well system.

  1. Place the torque arrestor around the drop pipe evenly.
  2. Install and tighten the lower pipe clamp.
  3. Adjust the center portion to fit snugly inside the casing.
  4. Tighten the upper clamp securely.
Important:
  • Do not over-expand the center portion to avoid installation difficulties.
  • Ensure clamps are tightened to prevent movement.
Torque Arrest for 4" to 8" WellsTorque Arrest for 4" to 8" Wells