substitution request - Alliance Construction Solutions

e preset with a shear pin to allow vertical motion due to pipe expansion or contraction.
Shear pin shall be removable and reinsertable to allow for selection of pipe movement.
Guides shall be capable of ± 1-5/8” motion, or as required to meet specific location
requirements. Pipe guides shall be type VSG as manufactured by Mason Industries, Inc.
E. Flexible Pipe Connections: All equipment that is supported by or mounted on vibration
isolators shall be piped with flexible connections. Specification “K” or Specification “L”
flexible connections shall be installed parallel to the equipment shaft insofar as practical
and on the equipment side of isolation valves.
F. Equipment Isolation: All mechanical equipment shall be mounted on vibration isolators to
prevent the transmission of vibration and mechanically transmitted sound to the building
structure. Vibration isolators shall be selected in accordance with the weight distribution so
as to produce reasonably uniform deflection. Isolator types shall be as noted on the
equipment schedule below.
EQUIPMENT VIBRATION ISOLATION SCHEDULE:
(Not all types of equipment listed below are necessarily used on this project.)
EQUIPMENT TYPE
Floor-Mounted Pumps
(Slab on Grade)
Floor-Mounted Pumps
Above/Below Occupied Spaces
Structure-Hung Pumps
* Omit if internal isolation is provided.
** Omit for FPB without hydronic coil.
*** Use type C mount for outdoor, wind-loaded installations.
3.05 EXAMINATION OF RELATED WORK:
Project No.: 10145
550 15 th Street Dual Brand Hotel
03/16/2012
ISOLATOR SPECIFICATION
Mount Type A;
Connector Type K
Base Type J; Spring Type B;
Connector Type K
Hanger Type D
Connector Type K
STATIC DEFLECTION
(INCHES)
A. Installer of vibration isolation work shall observe installation of other work related to
vibration isolation work, including work connected to vibration isolation work; and, after
completion of other related work (but before equipment start-up), shall furnish written
report to Engineer listing any observed inadequacies which could prevent proper operation
and performance of vibration isolation work. Report shall cover, but not necessarily be
limited to, the following:
0.75
1.50
0.75
1. Equipment installations (performed as work of other sections) on vibration
isolators.
2. Piping connections, including flexible connections.
3. Ductwork connections, including provisions for flexible connections.
4. Passage of piping and ductwork, which is to be isolated, through walls and floors.
B. Do not start up equipment until inadequacies have been corrected.
22 0548 - 10 VIBRATION AND SEISMIC
CONTROLS FOR PLUMBING
PIPING AND EQUIPMENT