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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
Product Images
Company Information
Certifications
Packaging & Shipping
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?