Manhole Cover, Tank Truck Fitting, Oil Tank Truck Cover
manhole cover, tank truck fitting, oil tank truck cover
Description
Manhole is installed on the top of the tank, built-in pressure& vaccum vent & emergency vent.
Characteristics
• Pressure & vaccum vent, while inside pressure higher than 6-8 Kpa or lower 2-3Kpa than the outside, will be open to balance the different pressure. While the difference pressure less than -2~6Kpa, the P/V vent will be closed to keep the product not volatilized.
• Automatic sealing of P/V vent in a roll over situation prevents dangerous and spillage.
• When the inside pressure is higher 21-32kpa than the outside. The emergency vent will be open automatically to keep tank safe. The vent capacity is 7000M3/h.
• Two-stage opening allows safe release of residual compartment pressure before fully opening the fill cap.
• Easy maintenance, convenience, safety.
• Working pressure:0.6Mpa
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