The application of quick-opening blind plate pressure alarm valve enhances safety. And its lock ring movable part is connected to the pressure alarm valve. This prevents the unit from being accidentally opened. And it can carry high loads and double pivots. This part can fully bear the weight of the shutter door. This enables a small turning radius and repeatable operation. before opening the blind. The operator should confirm the switch state of each valve.

Pig Scraper jamming is a serious problem that may occur during pigging. If it is not serious, it will cause the interruption of the oil transportation process. In severe cases, it may cause an abnormal increase in pipeline pressure. This may even lead to serious problems such as pipe leakage. There are various reasons for pig jamming.