Tanker Manhole Cover

Short Description:


Body Material: Aluminum alloy, Carbon Steel, Stainless Steel

Style: Clamp,Flange

YOJE RKG 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.

Product Detail

Product Tags


Body: Aluminum alloy
Pressure handle: Steel
Exhaust valve: Aluminum alloy
Safety button: Copper
Seal: NBR

Product Name Manhole cover for tank truck
Model No. RKG-AL-580E
Body Meterial AL alloy
Body size 20 inches
Emergency Exhausting Valve Size 10inches
Working Pressure 0.254MPa
Emergency Open Pressure 21PMa~32PMa
Max Flow Rate 7000m3/h
Temperature Range -20~+70℃
Installment Mode Flanged connection
Seal NBR
Standard EN13317:2002

1. Each manhole cover emergency exhausting valve includes a breathing valve.
2. The breathing valve is installed as required to make the tanker ventilated. Different pressure settings suit different operation requirements.
3. Emergency Exhausting valve and breathing valve has automatic sealing to prevent danger and needless oil spillage.
4. Double open allows safe release of remaining gas before fully opening the cover board.
5. Two reserved blind holes on the main cover can be installed with vapor recovery valve and optic sensor.

Product name: Aliuminium Alloy Tank Truck Manhole Cover
Materia: Body: aluminium alloy
Model JSMC-560/580
Figure size: 560mm/580mm
Technic: Casting
Weight: 15KG
Pressure: 0.6Mpa
Tempreture: -30°C- +60°C
Media: Gasoline,Diesel,Kerosene,etc

Aluminum Alloy Tank Truck Manhole Cover is installed on the top of the tank truck’s oilcan, which has the function of internal respiration and emergency exhausting. The internal respiration valve can balance the oilcan’s inside and outside pressure during the transportation. The emergency exhausting equipment will be opened to release  pressure if the inner pressure increases sharply .Even if the tank truck has an accident, the internal respiration valve’s prevention against overflowing equipment remain sealed, the media inside of the oilcan can’t be leaked ,otherwise it may cause serious accident. The manhole cover can install waste gas recovery valve, gauge hatch, etc.


Company Information
JiaSheng Petroleum Tech Co., Ltd. located in Xuzhou, Jiangsu province, with convenient transportation in railway, highway and aviation. Our company is a specialized manufacturer integrating design ,production and sale into an organic whole.
Our company produces and sales various tanker parts, oilcan parts, watering cart parts, aluminium and stainless steel quick coupling, double-way and treble-way valves, medium and low pressure petrochemical valves, European standard gas recovery tanker parts, gas station recovery products. Our products are widely supplied for industries like petroleum company, troops, oil stocks, tank truck, watering cart and gas station.
Our company has engineering experiences for years, we are also specialized in the installment of gas station wire frame, oil tank, asphalt tank, wine storage tank, pipeline and gas station construction, once and twice gas station recovery redevelopment, European standard tank truck refit.
Our company provides well-equipped products, advanced technique, strong technical force, and we can undertake the manufacture of other special parts

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