FOH POLY PAIL

DRUM CODE: 5 GAL POLY PAIL

Pursuant to the requirements of the Department of Transportation in CER 49 Part 178.2 (c)(l), this is your notification of the closing method used for the containers sold to you on the attached delivery ticket or bill of lading. This method of closure should be used to ensure that your containers have been closed in the same manner as when they were initially tested. If there is any question regarding proper closing methods, contact your Capital Drum salesperson or manufacturing facility.

There are many types of closing machines and tools used for applying cover to open-head pails. Most of these devices do an excellent job of closing a standard NAMPAC container. However , due to the rigorous test requirements established by the United Nations and adopted by the DOT, UN packaging must be closed properly in order to meet performance requirements, which are absolutely essential to the safe containment and transport of materials.

ROLL-ON PRESS

The roll-on cover press is a high-speed closing unit, typically used in high-volume filling operations.

It is critical to keep the roll-on cover press adjusted to the open-head container height variances to ensure that the package is not stressed during cover application.

Design and operating rates for this typed of press vary greatly. For this reason, NAMPAC cannot recommend this style press. Each application must be considered individually as to its effectiveness with the NAMPAC UN package.

If used, NAMPAC suggests that the exit end of a roll-on cover press be set to the pail height (without cover) plus .200". Adjustments of this height setting will be necessary to ensure proper cover installation. Inspection of the belt speed must also be conducted to ensure proper cover installation and to avoid damage to the container or spillage of product.

MALLET/HAMMER

This method is the least expensive and generally very effective for the installation of NAMPAC’s standard cover, However, the force which must be applied to various parts of the NAMPAC UN cover can damage the cover and/or the gasket during installation.

Due to the hazardous nature of the products packaged in a UN container, NAMPAC does not recommend this method.

VERTICAL CYLINDER PRESS

The NAMPAC UN package performs best when the cover is applied properly with a vertical cylinder press.

There are many types of closing presses on the market. They have various frame and cylinder sizes to accommodate a range of air volumes and pressures.

These presses force the cover on with a vertical downward motion. Covers must be applied without deforming the cover or the sealing gasket beyond design limitations. The majority of these presses are pneumatically powered and electrically controlled.

The amount of force necessary to properly apply a NAMPAC UN cover is considerably more than a standard NAMPAC open-head cover (example: When using a 5" cylinder, NAMPAC’s standard open-head cover requires 75 to 80 psi, while our UN cover requires 95 to 100 psi).

The air pressure available and the size of the cylinder on the press are important considerations. Typically, as a minimum requirement a 5" diameter pneumatic cylinder, with 110 psi air supply, regulated down to between 95 and 100 psi required to properly apply a NAMPAC UN cover. If a large cylinder diameter is used, a lower air pressure supply will be required.

WARNING:   The application force required will vary according to ambient temperature and the closing speed of the cover press. Adjustments of speed and pressure will be necessary to optimize cover installation.

NAMPAC recommends a 6" diameter cylinder with an 80 psi air supply, regulated down to between 65 and 70 psi. Pressure must be maintained for a minimum of I second and the cylinder must be allowed to stroke a minimum of 1/4" below the top of covers for proper installation.

The cover press plated must be parallel to the base, within .050" and must have sufficient strength to withstand deflection during application of the cover.

A Burp Plug is not recommended for applying NAMPAC’s UN cover.

(UN/lH2/Y1.5/30)