---
title: Armstrong Compass R Circulators with Dry Rotor Design
description: "Armstrong Fluid Technology has introduced two new sizes of its Design Envelope Compass R circulators: 40-85 and 60-50."
---

[Armstrong In The Media Blog](https://blog.armstrongfluidtechnology.com)

# [Armstrong Compass R Circulators with Dry Rotor Design](https://blog.armstrongfluidtechnology.com/armstrong-compass-r-circulators-with-dry-rotor-design)

 Written by [Armstrong Fluid Technology](https://blog.armstrongfluidtechnology.com/author/communication) | Aug 18, 2025, 3:00:17 PM

As Seen On: [canadianconsultingengineer.com](https://www.canadianconsultingengineer.com/products/variable-speed-dry-rotor-circulators-expand-sizing-options/)<https://www.phcppros.com/articles/21904-armstrong-compass-r-circulators-with-dry-rotor-design>July 28, 2025

Toronto-headquartered pump manufacturer [Armstrong Fluid Technology](https://armstrongfluidtechnology.com/) has introduced two new sizes of its Design Envelope Compass R circulators: 40-85 and 60-50.

Designed to replace fixed-speed circulators by offering greater energy efficiency, the Compass R is a variable-speed dry-rotor circulator. It is suitable for applications requiring up to 60 ft of head.

New features include Posi-start technology for smooth startup and pump protection, a quick-release clamp for ease of repairs and optimized hydraulics with the high-efficiency dry rotor design. The Compass R is also ‘bolt-for-bolt’ compatible with a wide range of installed circulators

 

Also Seen On:

[phcppros.com](https://www.phcppros.com/articles/21904-armstrong-compass-r-circulators-with-dry-rotor-design)July 28, 2025

 

[View full post](https://blog.armstrongfluidtechnology.com/armstrong-compass-r-circulators-with-dry-rotor-design)

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