Cooper B-Line Pipe Hangers & Supports - Dixie Construction Products

HMLT*/HMT Type - Housed 1" (25.4) & 2" (50.8) Deflection Fail Safe Spring Mount
(Skid Resistant Neoprene Top & Internal Adjustment Bolt)
Use: HM Series Housed Spring Mounts are
utilized to isolate floor mounted equipment where
transmission of noise and vibration (below 1200
RPM) is apparent. This type of mount is most
commonly used to support equipment on upper
floors where structural deflection may occur.
Features: Telescopic two-piece cast iron housing to
stabilize spring where external motion may occur.
Slotted mounting holes on base with
skid-resistant pad. Mounting is facilitated by an
internal adjustable leveling bolt. Springs are
color-coded for load identification. Housing
components are isolated by rubber acoustical
pads. Larger capacity mountings are available.
Typical Applications: Compressors, air handling
units, centrifugal fans, pumps and other similar
applications. May also be used as a vibration
dampening device for pipe risers.
Note: To ensure minimum effective vibration control, the spring mount must have a static deflection at least three times (3X)
greater than the floor spans deflection.
Spring devices are stable with a vertical and horizontal spring constant equal to one (Kx/Ky=1). A 50% additional run-out from
rated capacity to solid load is also characteristic of spring type isolators.
Vibra Trol
Vibra Trol ® 178
'W'
'L'
'F'
'A'
'B'
'W/2'
Acoustical Non-Skid Neoprene Pad
Adjust mount for
minimum 1 /4" to
maximum 1"
operating
clearance.
'H'
Free and
Operating
Height
Stable Steel Spring
Acoustical Non-Skid
Neoprene Pad
*HMLT Series are Lower profile.
All dimensions in charts and on drawings are in inches. Dimensions shown in parentheses are in millimeters unless otherwise specified.