|
Support materials are crucial in installing Cable Tray Systems. Superior Tray classifies the
Cable Tray Support Materials into the following categories:
• Suspension Channels and Fittings
• Hangers
• Vertical Run Supports
• Wall Brackets
• Strut and Strut Hardware
We highlight some important Cable Tray Support Materials below. For more information about Superior Tray Support Materials,
please download the brochure of Support Material in pdf format.
CENTER SUPPORT
Center Supports offer the economy of less support material and better side access to the tray
system for trays carrying light to medium loads. Extra consideration should be given to balancing
the cable load during cable installation. It is supplied with Support Channel, Hanger rod sleeve,
Nuts and washers, Tray hold down clips and hardware.
1/2 inch hanger rod is not included. Max load 800 lbs. with 1.5 safety factor.
Note: ( ) = insert tray width
HANGER RODS
Hanger rods with 1/2 inch diameter and 13 threads per inch can be used with all tray support
channels, angles and hanger clips. They have continuous threads and are furnished with
4 (N-12) nuts, 2 (W-9) lock-washers and 2 (W-12) flat washers.
Maximum allowable load: Use for design, 1100 lbs., in combination with all standard suspension
fittings, hanger clips, and couplings normally used. The safe load is much higher.
CHANNELS
Channels are used with 1/2 inch hanger rods to support ladder style trays where hanger clips
cannot be utilized and for troughs with or without hold-down clips. When used with trough,
only HB-2, JB-2, etc. style hold-down clips can be used.
ANGLES
Angles are continuously slotted to hold down Ventrib Trough using HB-1 bolts, and can be used to
support all tray types with 1/2 inch hanger rod suspended from overhead.
Maximum allowable load: It safely supports any loaded tray of the designated width within the load
limits of the hanger rod.
SINGLE CHANNEL HANGERS
Single Channel Hangers are used to support single 4 inch or 6 inch wide Instrument Channels from
1/2 inch hanger rod. The bottom support member, on which the channel rests, is drilled to
accommodate HB-10 hold-down bolts.
Maximum allowable load: It safely supports any loaded tray of the designated width within the load
limits of the hanger rod.
DOUBLE CHANNEL HANGERS
Double Channel Hangers support single or double, 4 inch or 6 inch wide Instrument Channels from 1/2
inch hanger rods. The support member, on which the channel rests, is drilled to accommodate HB-10
hold-down bolts, or SGB-GU expansion guide bolts.
BEVEL WASHERS
The standard size is 1-1/4 inch square with a 1/2 inch bevel and a 9/16 inch hole.
Catalog Number: W-11.
VERTICAL HANGERS FOR TRAY
Vertical Hangers are used to support single type vertical ladders or troughs from 1/2 inch hanger rods.
Each is furnished with the required mounting hardware.
Maximum allowable load: 250 lbs/unit
VERTICAL HANGERS FOR CHANNEL
This hanger assembly for vertical channels accommodates either 4 inch or 6 inch wide channels and
is furnished with all necessary hardware, except for the top 1/2 inch hanger rod to the building steel.
Maximum allowable load: 200 lbs.
CHANNEL CLAMPS
Channel clamp assemblies can be used on all American Standard channels with a flange width of
3-1/4 inch or less. They are furnished in zinc plated steel with or without a swivel joint.
Maximum allowable load: 500 lbs. with a safety factor of 5
HP CHANNEL CLAMPS
HP single and back to back strut type support channels are attached to structural beams with a
0.8 inch maximum flange thickness. Clamps are furnished with the required hardware.
Maximum allowable load: 1,275 lbs. with a safety factor of 5
BRACKET ANGLES
Bracket Angles are used to connect two wall brackets, which then serve as a support for vertical
runs. Cable trays are then bolted to bracket angles with support angle clips. Bracket angles
have a series of slots to allow the attachment of various types of tray of the same width to
the same bracket angle. It is fabricated from hot dip galvanized steel.
VERTICAL RUN SUPPORTS
Superior Tray supplies a wide variety of vertical run supports depending on the load, support
spacing and distance of the run from the wall or supporting structure. The support spacing
for vertical runs is recommended to be no less than six ft and no more than twelve ft.
Brackets are available for spacing of 3, 12, 24 and 36 inches from the wall to accommodate
the various radii bends that may be entering or leaving the supporting wall. Vertical runs
usually consist of either a Z-Bracket for a 3 inch distance from the wall only, or a pair of
brackets with the necessary support angles and clips to fasten the tray to the support.
The proper support angle and number of bracket angle clips for the tray to be used must be
determined in addition to wall brackets. For each application, the actual load per bracket
must be checked against the maximum allowable load on the bracket.
Z-BRACKETS
Z-Brackets support vertical runs at a distance of 3 inches from the wall. They have a slot
pattern similar to that of bracket angles and are made from standard 7 gauge Z-shaped
HDGAF steel.
CHANNEL BRACKETS
Channel Brackets will accommodate single or double channel runs with pre-drilled holes for HB-10
Hold Down Bolts, purchased separately.
Maximum allowable load: Twice the allowable load for the respective channel at a support spacing
of 10 ft.
MEDIUM WEIGHT BRACKETS
Medium Weight Brackets are used to support 2 ladder trays side by side or 2 ladders one
over the other.
These brackets are made of 3/6 inch structural angle, welded and hot dip galvanized.
The horizontal support angle is continuously slotted to increase the versatility of the bracket.
Maximum allowable load:
Condition 1: 2100 lbs.
Condition 2: 600 lbs.
HEAVY WEIGHT BRACKETS
Heavy Weight Channel Type Brackets are designed to support long spans or multiple ladder or trough
installations that exceed the load capacity of ordinary brackets. They are welded from 3 inch
structural steel channel with 1-1/2 inch channel stiffening members and hot dip galvanized.
To utilize the full strength of the brackets, the 3 bolts of 1/2 inch diameter for which the wall
members are drilled must be used.
Maximum allowable load:
4,000 lbs. when applied as 2 equally concentrated loads, spaced at least 2 inch-4 inch apart on
brackets five ft wide and under; or at least 4 inch - 6 inch apart on brackets over five ft wide.
The capacity is greater when used for a uniformly distributed load.
SINGLE STRUT BRACKETS
Designed for use with strut framing, these single strut brackets will work well in other
applications. The uniform loads shown represent a 2.5 safety factor. These brackets are
furnished in HDGAF steel.
Allowable concentrated end load:
One half the listed uniform load.
DOUBLE STRUT BRACKETS
Double strut brackets are used for wider trays and heavier loads. The uniform load shown
represents a 2.5 safety factor. These brackets are made from HDGAF steel.
Allowable concentrated end load:
One half the listed uniform load.
STRUT HARDWARE
Note: All dimensions are in inches.
|
