Air Sealing Grommets
The Tate KOLDLOK air sealing grommet is designed to prevent air leakage from the underfloor plenum where penetrations in a raised floor are needed to deliever power, data and other services to equipment above the floor. Tate KOLDLOK is a 8.75"x11" injection molded ABS plastic grommet designed to mount in a raised floor panel. Supplied with an optional rigid lid capable of supporting up to 250lbs this grommet is designed to be installed at the same time as the raised floor. The interior crennelated design provides a superior seal over other brush style grommets improving air leakage performance and saving energy.
Benefits of Including Tate KOLDLOK in Design
Tate has identified a standard cut-out location that works with any size rack and ensures that cutout is always in the proper loaction inside the back door. The location which is 4" from the edge of the panel and centered can be specified as a factory cut-out saving the time and mess associated with field cutting.
Easy to Install & Relocate
With the Tate KOLDLOK installing cutouts during the inital build is easy and cost effective. All Tate KOLDLOK air sealing grommets come with domed lids that keep equipment from being rolled over them. These lids enable the raised floor installers to place the cut-out in the floor as they build-out the facility. The Tate KOLDLOKâs can be precisely positioned in relationship to the airflow panels or placed in a special holding area of the floor to later be moved into the final position as equipment is deployed on the floor. Furthermore, since this location works with any size rack the cut-outs can be stored in reserves at your facility for future moves/adds/changes.
Improve Efficiency, Capacity & Performance
Using Tate KOLDLOK air sealing grommets will help improve data center efficiency, capacity and cooling performance. With the ability to use a factory cut in a standard location to supply wires and cables to any size rack provides the opportunity to specify the use of this seal during the design phase. By specifying the use of these seals the architect and owner can have the confidence that they are using the best performing grommet in the industry and not an imitation. Existing facilities and data center expansions will likewise benefit from the superior sealing ability of the Tate KOLDLOK.
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The figure above shows examples of some common racks currently available on the market. The blue box represents the location of the cut-out seal in the back of the rack when using Tate's standard location. This standard location will also work with virtually any rack dimension or position. |
Tate KOLDLOK CFM Leakage Comparison
Open Area Available |
No Penetrants |
CAT 5 Cable Bundles |
Power Cables (Center) |
Power Cables (Side) |
|
| Brush Style A | 14.3 sq.in.
|
0.43
|
3.7
|
2.37
|
3.98
|
| Tate KOLDLOK | 35 sq.in.
|
0.07
|
2.17
|
0.385
|
1.16
|
 |
|||
No Penetrants |
Bundle of 32 Networking Cables |
1 x 9/16" Power Cables |
4 x 9/16" Power Cables |
The example below provides an example of the energy associated with sealing cutouts in a 10,000 sqft data center. In addition, you will see a comparison using a typical brush style grommet vs. Tate KOLDLOK. The Tate grommet can save over $3,000 in annual energy usage.
Energy Model - Cutout Sealing 4 x 9/16" Power Cables
No Air Sealing Grommet |
Brush Style A Cutout Seal |
Tate KoldLok |
|
| Data Center Size | 10,000 sq. ft. |
10,000 sq. ft. |
10,000 sq. ft. |
| Number of IT Racks | 500 |
500 |
500 |
| Number of Cable Cutouts | 500 |
500 |
500 |
| CFM Leakage Per Cutout | 392 |
3.98 |
1.16 |
| Total CFM Leakage | 196000 |
1990 |
580 |
| kW/kCFM Fan Energy | 0.64 |
0.64 |
0.64 |
| Power Wasted (kW) | 125.4 |
1.3 |
0.4 |
| Energy Wasted Annually (kWhr) | 1098854 |
11157 |
3252 |
| Cost per kWhr | $0.10 |
$0.10 |
$0.10 |
| Annual Energy Cost | $109,885.44 |
$1,115.67 |
$325.17 |
