Specifications
Carbon steel manhole cover
Management Certification: ISO 9001:2000
Fit EN13317:2002 standard
Size:20 inch
carbon steel manhole cover
installed on the top of oil tanker and used for injecting oil,checking gas recovery,mending the internal inlet.
Also can protect the tanker under the emergency.
When inject oil,the outside temperature's change will lead the tanker's inside pressure to change.
Then the manlid's breathing valve can automatically make the tanker pressure to the normal level. If some emergency happen ,like the tanker overturn,the breathing valve will automatically close to avoid the
tanker's explosion when under the fire condition
Material:
Boday: SS
Handle:SS
Breathing valve: AL alloy
Insurance deduction:SS
Seal: VITON
Feature:
Steel butt plate,pressure vacuum valve can ventilate the oil tanker, different manipulation can set updifferent pressure.
Pressure vacuum valve has the automatically seal function,can avoid the oil leakage. Before completely openthe butt plate, double opening device can make the tanker's remaining gas to discharge safely.
Parameters:
Size | 20 inch |
Emergency Breathing valve | 10 inch |
Pressure resistance | 0.254MPA |
| Emergency open pressure | 21KPA-32KPA |
Max air flow rate | 7000m³ /H |
Installment mode | Hooped |
Temperature | -20 to 70 °C |
