Closed Top Plastic Barrels | HDPE UN Rated Drums

• Material: High-Density Polyethylene (HDPE), Blow-Molded
• Capacities: 5 Gallon, 15 Gallon, 30 Gallon, 55 Gallon
• Compliance: UN/DOT Rated, FDA & USDA Options Available
• Closure Types: Tight-Head (Closed Top) with 2" and 3/4" Bung Openings

Closed top plastic barrels are industrial containers designed for sealed liquid storage and transport. These HDPE drums feature a non-removable top with bung openings for controlled dispensing. Available in sizes from 5-gallon jugs to 55-gallon drums, they support applications ranging from small-volume handling to bulk liquid storage. Constructed from high molecular weight polyethylene, these containers resist corrosion, chemicals, and environmental stress. UN-rated and food-grade options are available for regulated use.

Product Type	Capacity	Material	Closure	Compliance
Closed Top Plastic Drum	55 Gallon	HDPE	2" Bung	FDA / UN Rated
Closed Top Plastic Drum	30 Gallon	HDPE	2" Bung	FDA / UN Rated
Closed Top Plastic Barrel	15 Gallon	HDPE	2" Bung	FDA / UN Rated
Closed-Head Plastic Jug	5 Gallon	HDPE	70mm Screw Cap	FDA / UN Rated

Closed top plastic barrels, also known as tight-head drums, are designed with a permanently sealed top and integrated bung openings. Standard configurations include dual 2-inch ports or a combination of 2-inch and 3/4-inch fittings. These openings support pumps, faucets, and dispensing systems. Unlike open-head drums, these units are optimized for liquid containment and transport where spill prevention and controlled access are required. Smaller 5-gallon jugs use screw-cap closures, while larger drums rely on threaded bung systems.

These containers are manufactured using blow-molded HDPE, creating a seamless, one-piece structure. High molecular weight polyethylene improves impact resistance and reduces stress cracking. Wall thickness varies by application, with heavier-duty drums designed for hazardous materials. HDPE resists UV exposure, does not rust, and maintains structural integrity in outdoor environments. Optional additives and colorants (blue, natural, black) can provide UV stabilization or content visibility.

Many closed head plastic barrels meet UN/DOT requirements for transporting hazardous liquids. UN ratings are based on drop tests, pressure resistance, and leakproof performance. Food-grade models comply with FDA and USDA standards for contact with consumable liquids. Proper labeling, bung sealing, and compatibility testing are required for regulatory compliance. These drums are commonly used in regulated supply chains where documentation and certification are mandatory.

Closed top plastic barrels are used across multiple industries. In chemical processing, they store and transport acids, solvents, and reagents. In food and beverage operations, they handle syrups, oils, and water. Agricultural use includes fertilizers, pesticides, and irrigation storage. Water treatment operations use them for chemical dosing and potable water storage. Smaller 5-gallon units are used for sampling, distribution, and portable storage.

Key factors include capacity, chemical compatibility, and regulatory requirements. Buyers should verify HDPE compatibility with stored liquids to prevent degradation. Bung size and thread type must match dispensing equipment. Wall thickness and UN rating should align with transport requirements. Environmental exposure, including UV and temperature conditions, should also be considered. Smaller containers are suited for handling and portability, while 55-gallon drums support bulk storage and logistics.