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
Warranty: the product is guaranteed for 12 months from the date of delivery under normal condition. | Customers will enjoy free repair services for failures found within the warranty due to manufacturing quality; | We provide paid repair services for products damages not arising from manufacturing quality issues or not within the scope of warranty. |