It looks like you are coming from United States, but the current site you have selected to visit is Saint Lucia. Do you want to change site?

Yes, please! No, keep me on the current site

QR-S Mechanical Damping Device

Overview Documentation & Tools Technology


Improve pressure control on commercial and industrial operations and enhance the speed of response on pressure regulators with the Sensus QR-S mechanical damping device.

This patent-pending device lowers your energy cost with high-efficiency burners and boilers. By simply removing a regulator’s spring tower cap and installing the QR-S in its place, this device prevents high lock-up or excessive pressure-drop conditions. It can be installed on new products or retrofitted to existing products already installed.


  • HE Boilers Installations
  • HE Generators Installations
Product Features
  • Set pressure adjustable with QR-S installed
  • Rated to 25 psig MAOP
  • Compatible with combustion regulators 121 and 122 and Commercial 243

Benefits to you

  • Enhances response time
  • Eliminates extreme pressure drop at start-up
  • Retrofits easily in the field
  • Provides a cost-effective solution
  • Patent-pending design

For information about this product, download the data sheet.

Documentation & Tools

Documentation & Tools