manhole cover

tanker manhole cover Management Certification: ISO 9001:2000 Fit EN13317:2002 standard Size:16 inch

tanker 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.

Feature:

All types manhole cover has the breathing valve

Breathing valve's different pressure set can fit different operation requirement

Breathing valve has the automatically seal's function,can avoid leakage under emergency

Fit EN13317:2002 standard

Material:

Body: Casting AL alloy

Breathing valve: AL alloy

Handle: steel

Safety locker:  SS

Seal: FPM

Size	16 inch
Emergency Breathing valve	10 inch
Pressure resistance	0.254MPA
Emergency open pressure	21KPA-32KPA
Max air flow rate	7000m³ /H
Connect way	Flange
Temperature	-20 to 70 °C