C801T-500 Carbon Steel Manhole Cover
Manhole Cover
1.With Breathe Valve and Emergency vent device builtin, It can control the
interior and outerior pressure automaticaly to reach balance. While the tank
leaning,the valve will close itself to avoid the leakage effectively.
2.When the temprature is too high and the pressure is beyond 2130kpa, the
emergency vent device will open to release the inside pressure of the tank
to avoid the explosion effectively.
