Anti-Vibration Open Restrained Spring Mounts and Isolators

OPEN RESTRAINED SPRING

The mounting has been designed specifically ORS for applications where transmission of low frequency machinery vibration to a building structure must be reduced to avoid physical damage or annoyance to the the occupants. Vertical and lateral restraint is provided to control movement of the mounted equipment when subjected to external forces. This could otherwise be excessive due to the low stiffness springs required to provide isolation of low frequency vibration. Equipment located at roof level can be successfully mounted on the units as any ORS movement caused by high wind loads will be limited. Cooling Towers and chillers which contain large volumes of liquid will benefit from installation on mountings because during "draining ORS down" upward movement is restricted thus avoiding damage to pipework and electrical connections.

Signature Signature

DESIGN FEATURES

  • High strength all steel construction.
  • Colour coded helical steel springs with nominal deflections of 25mm and 50mm and up to 50% overload capacity.
  • Vertical and lateral restraints have rubber inserts to avoid any metallic contact and adequate radial clearance ensures isolation efficiency is not impaired.
  • Spring located using rubber sleeved pegs and seated on a rubber washer to reduce high frequency transmission.
  • Working height and vertical limiting stops are fully adjustable.
  • 6 mm thick cross ribbed rubber seating pad supplied as standard.