20 Inch European Aluminum Alloy Manhole Cover with Single Valve
This aluminum alloy manhole cover is designed for tank truck installation, featuring built-in breathing valve and emergency exhaust functions. During oil transportation, the breathing valve maintains internal pressure balance. In case of rapid pressure increase, the emergency exhaust automatically activates to release pressure while maintaining seal integrity to prevent accidents.
Key Features
- Maintains pressure balance during transportation
- Automatic emergency pressure release system
- Anti-overflow protection maintains seal integrity
- Durable aluminum alloy construction
- Multiple sealing material options available
Technical Specifications
| Model No. |
HT.RKG808-580 |
| Main Material |
Aluminum alloy |
| Nominal Diameter |
DN500 |
| Nominal Pressure |
65kPa |
| Design Temperature |
-20ºC ~ +70ºC |
| Weight |
15kg |
| Medium |
Light fuel |
| Sealing Material |
Fluorine rubber, nitrile, silicone |
| Opening Mode |
Manual |
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Frequently Asked Questions
Q: Are you a trading company or manufacturer?
A: We are factory.
Q: Can I have my own Logo on the product?
A: Yes, you can send us your drawing and we can make your logo, but you have to bear their own the cost.
Q: How long have you worked in this field?
A: Over 15 years.
Q: What's the delivery time?
A: Standard products will be arranged to ship in 7-10 days after full payment received.
Q: Can your factory produce products according to our drawings or samples?
A: Yes, of course we can.