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Aluminium Petroleum Manhole Cover for Fuel Tanker
Jiasheng series manhole cover is installed on the top of oil tanker. It is the internal inlet of loading, checking vapor recovery and tanker maintenance. It can protect the tanker from emergency.
Normally, the breathing valve is closed. However, when load unload oil external temperature changes, and the pressure of tanker will change such as air pressure and vacuum pressure. The breathing valve can automatically open at a certain air pressure and vacuum pressure to make the tank pressure in normal condition. If there is emergency like roll over situation, it will automatically close and it also can avoid the tanker explosion when in fires. As the emergency exhausting valve will automatically open when tank truck interior pressure increases to a certain range.
Material:
Body: Steel
Pressure handle: Steel
Exhaust valve: Aluminum alloy
Seal: NBR
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Product Name
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Manhole cover for tank truck
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Model No.
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RKG-S-460C
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Body Meterial
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Steel
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Body size
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16"
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Emergency Exhausting Valve Size
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10"
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Working Pressure
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0.254MPa
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Emergency Open Pressure
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21PMa~32PMa
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Max Flow Rate
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7000m3/h
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Temperature Range
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-20~+70ºC
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Installment Mode
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Flange connection
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Seal
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NBR
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Standard
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EN13317:2002
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2. Benefit & Feature
* 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 two blinding holes can be installed with Vapor Vent Valve, Optic Sensor, DIP Tube or Exernal Vacuum Valve according to the user's demand.
* Larger Angle Opening
The new designed blinder plate can make the cat hole opening's angle larger than the old one.
| Specifications | |||
| Nominal diameter | 16" | ||
| Working pressure | 0.6Mpa | ||
| Max Emergency Vent Rate | 7000m3/h | ||
| Open method | Mechanical | ||
| Connet Type | Flange | ||
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