Greenheck Isolation Assembly Instructions (468646) - Manual (Page 5)

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Greenheck offers several types of isolators for centrifugal products, including free-standing, restrained spring,
housed spring, and neoprene mounts. Refer to pages 6 through 8 for installation instructions for the type of
isolator shipped with the unit.
Isolator Options
Free-Standing spring isolators are unhoused, laterally stable steel
springs. They provide a minimum horizontal stiffness of 0.8 times
the rated vertical stiffness and provide an additional 50% overload
capacity. These isolators are equipped with a top mounted adjusting
bolt and a non-skid, ribbed elastomeric pad to increase stability.
Springs are color coded to indicate load capacity.
Restrained spring isolators consist of laterally stable, free-standing
springs assembled in a steel housing. These assemblies are
designed for vertical and horizontal motion restraint. Restrained
spring isolators are provided with leveling bolts that can be used for
blocking during equipment installation. Springs provide 50% overload
capacity and are color coded to indicate load capacity. Restrained
spring mounts are recommended for equipment subject to wind
loading or large torquing forces. They are also used for equipment
subject to large weight changes such as swingout fans.
Housed spring isolators consist of steel springs assembled into
a cast iron housing with a top mounted adjusting bolt and an
acoustical non-skid base. Housed spring isolators include resilient
inserts to prevent metal-to-metal contact and provide snubbing for
side loads. Springs provide an additional 50% overload capacity and
are color coded or identified to indicate load capacity.
Neoprene Mountings consist of a steel top plate and base plate
completely embedded in colored (oil-resistant) neoprene for easy
capacity identification. Neoprene mountings are furnished with a
tapped hole in the center. This enables the equipment to be bolted
securely to the rubber mount.
As a result of our commitment to continuous improvement,
Greenheck reserves the right to change isolator styles or vendors without notice.