Bitumen Tank Hatch LЦ-B-500 for Efficient Tank Operations

Hatch of bitumen tank LC-B-500, mounted on the tank of bitumen carrier. The hatch is equipped with a breathing valve. Conditional diameter DN, mm - 500 Operating temperature, º? - up to +250 Number of thumbs, pcs - 6 Overall dimensions in closed position, mm, not more - 695×685×250 Weight, kg, not more - 45 Characteristics of the breathing valve: <ul> <li>- working overpressure Pr, MPa (kg/cm2) - 0,003 (0,03) - 0,0063 (0,063)</li> <li>working vacuum pressure ??, MPa (kg/cm2) - 0,0015 (0,015) - 0,0025 (0,025)</li> </ul>