Installed on the top of oil tank, manhole can provide function of inside breath and emergency discharge. It can also be used wit

Installed on the top of oil tank, manhole can provide function of inside breath and emergency discharge. It can also be used with oil and gas recovery valve, oil-implement hole anti-overflow probe rod and etc. when the oil level reach the preset position during the fuel filling for the tank, the sensing system will alarm automatically to stop filling. The inside breather valve can keep balance between the pressure inside the tank and outside. The slope anti-overflow design can keep the tank sealed in case of accident. The emergency gas discharge device will release pressure inside the tank automatically when the inside pressure increase dramatically to ensure the security of the oil transportation.
Material: Body: Aluminum Alloy
Dimension: (mm) D D0 D1 D2 H L b Z-d Z-m F580 F580 F495 F130 85 370 13 24×F11 8-M10
Package: Product ID Net Weight Gross Weight Dimension U820-A 8 8.2 58×58×10 cm
Order Specification: Product ID Product Name U820-A Manhole

Manhole