Description
Specifications
RKG***-AS Aluminum Petroleum Manhole Assemblies are manhole covers,
which are equipped on the top of tank truck.
RKG Series Of Aluminum Petroleum Manhole Assemblies
1) Manhole Cover is equipped on the top of tank
truck.
2) It is the entrance of fluid transfer
operation inspection and maintaining the inside tank. It can
protect the tank when involving in an emergency.
3) Under normal practice, vent is closed When
loading and unloading and temperature variation, it will cause the
pressure variation inside the tank, such as air pressure and
negative vacuum pressure, the vent of manhole cover will be closed
automatically in order to keep the tank under a normal
pressure.
4) When involving in emergency, such as a car
accident, the Emergency Exhaust Valve will open the inside tank,
meets the setting, in order to prevent explosion.
5) It is internationally accepted, and
specified, by oil companies around the world to assist with
the safe transportation of petroleum based products.
6) Features Benefits:
a. Material: Extend aluminum plate
b. Pressure and vacuum vent fitted as standard for tank
breathing. Various ratings are available to suit operational
requirements.
c. Spring-loaded fill cap provides emergency fire engulfment
venting to NTTC DOT **6, required in the event of the tank being
exposed to a fire.
d. Automatic sealing of the P/V vent in a roll over situation
prevents dangerous and costly spillage.
e. Aluminium cover arm is also available on some
variants.
f. Two-stage opening allows safe release of residual
compartment pressure before fully opening the fill cap.
g. **0mm(*0?)fill hole for easy drop pipe insertion when top
loading.
h. High quality of baseplate and component materials, to
international standards, are used for durability and
performance.
i. Especially, theft-proof sensor of Aluminum Alloy
baseplate for Manhole Assemblies is available.
7) Technique Specification:
a. Setting pressure of vent discharge : 7.*4Kpa
b. Negative opening pressure:*2Kpa~*3Kpa
c. Setting pressure of emergency exhaust valve:
0.***6Mpa±0.**1Mpa
d. Pressure resistance:0.**4Mpa
e. Metting EN ****7:***2 Standard
