Working Principle
The lid uses a threaded connection to tightly engage with the tank opening:
Rotating clockwise → Tight sealing (closed)
Rotating counterclockwise → Easy opening
Structure
An IBC screw lid typically consists of:
- Cap body: Threaded structure for secure closure
- Sealing gasket: Ensures leak-proof performance
- Vent system (optional): Balances internal pressure
- Grip design: For easy manual operation
Features
|
Feature |
TPE |
EPDM |
FKM (Viton®) |
|
Cost |
Low |
Medium |
High (3-5x EPDM) |
|
Oil / Fuel / Gasoline |
❌ Poor |
❌ Very Poor (Swells/Destroys) |
✅ Excellent |
|
Acids / Caustics |
⚠️ Fair |
✅ Good |
⚠️ Fair (Check specific acid) |
|
Alcohols / Ketones |
⚠️ Fair |
✅ Good (Best for this) |
❌ Poor (for Ketones) |
|
Water / Steam |
✅ Good |
✅ Excellent |
⚠️ Fair |
|
Weather / Sunlight |
⚠️ Fair |
✅ Excellent |
✅ Excellent |
Advantages vs Other Closures
- Simple and reliable sealing method
- Easy operation without special tools
- Strong compatibility with standard IBC tanks
- Cost-effective and reusable solution
Applications
- Sealed IBC containers to prevent leaks, volatilization, and contamination.
- Supply and storage in the chemical, food, pharmaceutical, paint, lubricant, and water treatment industries.
- Replacing old lids and repairing damaged IBC containers.
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