Transportation, Storage and Installation

Transportation Concerns

TEADIT®, within its rigorous quality procedures, adopts and suggests that all precautions about packaging and handling should be observed to assure the customer will receive the products without damage.

The following points should be taken into consideration by customers, carriers and others involved in logistics.

Packaging Devices

A TEADIT® provides all necessary means to protect the expansion joints during transport, storage and installation. Shipping bars are fixed to the metallic frame and are used to protect the pieces during the installation phase.

The shipping bars must be removed prior the system start-up and are either painted yellow and/or have a tag that can be easily identified.

Storage

Certain industrial or natural environments, as well as some external storage conditions, could be harmful to the expansion joint and should be avoided to the extent possible.

Examples: (1) Expansion joints which are exposed to acid rain or to corrosive environments in open, unprotected places. (2) Expansion joints exposed to sparks, fire, welding splash, or in contact with sharp objects that can damage them.

The system designer should choose materials capable of overcoming these conditions. If they can’t be avoided, TEADIT® should be notified during the pre-design phase.

Inspection and Installation

Expansion joints are inspected at the TEADIT® facility and packaged to reach the final assembly site in proper condition. The customer, or its inspector, should immediately, after the expansion joints have been received and with the dispatch list, verify that all of the components were received undamaged. TEADIT® provides detailed instructions with every shipment, and these instructions should be reviewed prior the installation. To assure appropriate life and performance, the following preventive inspections should be performed prior to flue duct expansion joints installation:

The gap and the ducts alignment should be examined to see if there are misalignments exceeding ¼” in any direction. If the gap or the ducts alignment exceeds this tolerance, TEADIT® must be notified immediately for a detailed explanation of the situation and a remedy defined. The TEADIT® pre-setting recommendations must be strictly followed during the installation phase.

The flange sealing and expansion joints surfaces should be smooth, clean and parallel.

The duct’s location should be cleaned of all foreign objects and sharp protrusions. If it is not possible to remove these, they should be clearly identified to avoid any bellows damage during the assembly phase.

The expansion joints and/or their components should be kept in their original packages until immediately before installation. TEADIT® clearly identifies all the devices used to move the expansion joint.

Blankets or other suitable protection should be used to protect from welding splashes. Also, if there are welding works or other operations which are hot located close to exposed expansion joints. However, protections should be removed prior to the system start-up.

Do not install thermal insulation over the expansion joint or on the flange area, unless there are specific instructions from TEADIT®. As a general rule, follow the instructions of how to proceed with the thermal insulation transition on these areas, as shown below.

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Figure 14 Figure 15

Vibrations that exceed engineering good practice should be avoided or previously communicated to TEADIT® while still in the expansion joint design phase.

If the expansion joint has been in storage for a long period of time, it is recommended to inspect before installation to assure that there has been no deterioration to its components.

All the expansion joints provided with inner sleeves have their flow direction indicated on the outside of the expansion joint. (see figure below).

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Whenever there is external dust accumulation and/or other foreign material, this condition must be communicated to TEADIT® who will provide a special cover to protect the bellows. An external accumulation of combustible materials, such as wood chips and coal can start a flash fire and burn the bellows. The protection should be done by TEADIT® or under its direction.

 

Bolts Torque Guide

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The installers should note the following recommendations about the bolt torque:

The flue duct expansion joints use 3/8” diameter bolts for fixing the back-up bars. The torque to be used is 2.5kgf.m (18lbs.ft).

Special care should be taken with the back-up bars to avoid their ends overlapping or the gap being too great to provide an adequate seal. (see the above figure).

 

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Houston Office

TEADIT North America - Houston, USA
10545 Red Bluff Road, Pasadena, TX 77507
Phone: +1 (281) 476-3900 - Fax: +1 (281) 476-3999 TOOL FREE: +1 800-999-0198

Manufactured by

TEADIT - Campinas/SP
Av. Mercedes Benz, 390 Distrito Industrial Campinas, SP CEP 13054-750
Phone: (19) 3765-6500 - Fax: +55 (19) 3225-5614 Sales: +55 (19) 3765-6501

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