15094-2
PREFABRICATED PIPE HANGERS, SUPPORTS AND BRACING
shown on the Contract Drawings are specified elsewhere and not required as part of
this Specification.
Pipes supports shall be classified as one of the following:
1. Type 1 — Supported from an overhead structural member using overhead
hangers, guides, clevises, rollers, clamps or other means as specified herein.
2. Type 2 - Supported from a structural member below the pipe using guides,
rollers, clamps, saddles or other means as specified herein.
3. Type 3 — Supported from an adjacent wall or other vertical structural member
using brackets with either Type 1 supports or Type 2 supports or other means
as specified herein.
4. Type 4 — Miscellaneous Pipe Hangers, Supports and Braces not specifically
identified above.
5. Additionally, each pipe support shall be classified as one of the following
based on function:
a. Type S - Simple Support
b. Type G - Guide Support
c. Type F - Fixed Support
Where flexible joints or couplings are indicated on the Contract Drawings at
equipment, tanks, etc., the end opposite to the piece of equipment, tank, etc., shall
be rigidly supported, to prevent transfer of system forces to the equipment. No
fixed or restraining supports shall be installed between a flexible joint or coupling
and the piece of equipment.
All pipe and appurtenances connected to the equipment shall be supported in a
manner to prevent any strain or load from being imparted on the equipment or
piping system.
Pipe supports shall be provided to minimize forces through valves, split and sleeve
type couplings, flexible expansion joints and to minimize all pipe forces on
equipment housings. Equipment housings shall not be utilized to support
connecting pipes.
Unless otherwise indicated on the Drawings, maximum hanger and support spacing
shall not exceed the following:
1. Copper Pipe:
a. 1” diameter and smaller — 5 feet
b. 11/4”, 1 1/2” and 2” diameter — 7 feet
c. Greater than 2” diameter — 9 feet
2. Steel and Stainless Steel Pipe:
a. 2” diameter and smaller — 7 feet
b. 2%” -4” diameter — 11 feet
3. The maximum support spacings listed above are based on the specific pipes
being full of liquid without any additional vertical loads or thrusts. The actual
required support spacings may be limited to the hangers selected or the
presence of additional loads.
4. Pipe alignment guides shall not be used as vertical support of the piping.
Wall penetration sleeves (link-seal type or equivalent) shall not be used as
support of the piping.
Contractor shall provide pipe supports at the following locations:
WN
13089K
