- Casting Method: Special Casting
- Trademark: Jialong
- Origin: China Wenzhou
- Certification: SGS, ISO 9001:2008
- Specification: 20inch
2.Emergency open pressure:21kpa -32kpa
* Emergency Exhausting Design
When the tanker truck is in high temperature condition, the manhole will automatically exhaust the air inside to release the pressure, ensuring the safety of the tanker.
* With P/V Vent inside
When there is pressure differences inside and outside the tanker, it will automatically inlet or exhaust air to adjust the pressure so that it can ensure the safety and environmental preotection.
* Secondary Open Design
When open the up binder plate, it will release the pressure out to prevent the workers from pushing over.
* Blinding Holes Design
In the main plate of the Manhole, there are three blinding holes can be installed with Vapor Vent Valve, Optic Sensor, DIP Tube or Exernal Vacuum Valve according to the user's demand.
* Hooped Connecting
Instead of flanged connecting to make the installment more convenient and reliable.