aluminum alloy material for fuel tank truck manhole cover .It can vent atmospheric,when load or unload oil ,it can open or close automaticly, it can maintain stable pressure inside the tank an, reduse oil and gas outflow,and keep oil inside clean.When dumping at a certain angle, the breathing valve is completely closed to prevent liquid fromoverflow.
II.Product Parameters
Body Material | Aluminum Alloy |
Medium | compressed air |
Design tempresure | -20°~+50° |
Air connection | 6mm |
Applicable gas source pressure | 0.5-0.8mpa |
III.Product Pictures
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