| 摘要 |
A preloading gate valve system is defined by preloading valve assembly integrated into a gate valve. The preloading gate valve system comprises: a gate valve; a gate; a preloading valve arrangement; and a means for control. The gate valve has an upstream cavity and a downstream cavity, and a gate disposed within the gate valve, wherein the gate is movable between open and closed position of the gate valve. The preloading valve arrangement defines an at least one preloading cavity and an at least one preloading valve. The at least one preloading cavity permits fluid to enter the gate valve through the at least one preloading cavity, through the at least one preloading valve, and into the gate valve. The means for control serves as a control interface allowing opening/closing of the gate. |
