BWB液压控制器HCT-2C产品介绍

BWB液压控制器HCT-2C产品介绍

BWB Controls 成立于1971年，是一家为石油和天然气行业提供服务的制造工厂。

BWB阀HCT-2C产品介绍

The BWB "HCT-2C" is a 2 way, normally open, pilot operated, automatic hydraulic controller with manual override. It is normally installed in a SCSSV control panel. It receives instrument pressure (Port A) from a safety system component such as a master relay and hydraulic supply pressure (Port B) from a pump.

During normal operation, instrument pressure (Port A) holds the controller in the closed position. The supply pressure (Port B) is blocked and the hydraulic system will maintain its required working pressure.

When the master relay is actuated, it will bleed instrument pressure (Port A) from the controller and the spring will push the controller into the open position. The supply pressure (Port B) is exhausted (Port C), and returned to the reservoir; thus closing the SCSSV or system.

Should hydraulic working pressure be required to open the SCSSV or system before instrument pressure (Port A) is returned, the manual override may be used. The override handle is manually screwed in; This allows supply pressure (Port B) to be blocked and the hydraulic system to maintain it's working pressure. When instrument pressure (Port A) is returned, the manual override must be manually released for the controller to resume normal operating conditions.

BWB“HCT-2C”是一种2路、常开、先导式、带手动操作的自动液压控制器。它通常安装在 SCSSV控制面板中。它接收来自安全系统组件（例如主继电器）的仪表压力（端口 A）和来自泵的液压供应压力（端口 B）。

在正常操作期间，仪表压力（端口 A）将控制器保持在关闭位置。 供应压力（端口 B）被阻塞，液压系统将保持其所需的工作压力。

当主继电器启动时，它将从控制器中释放仪表压力（端口 A），弹簧将控制器推至打开位置。 供应压力（B 口）被排出（C 口），并返回到油箱； 从而关闭 SCSSV 或系统。

如果在仪表压力（端口 A）返回之前需要液压工作压力来打开 SCSSV 或系统，则可以使用手动操作。 超控手柄是手动拧入的； 这允许供应压力（端口 B）被阻塞，液压系统保持其工作压力。 当仪表压力（端口 A）返回时，必须手动释放手动控制器，以便控制器恢复正常操作条件。

BWB液压控制器其他常用型号：

BWB HCT-2C