SI/DP

The external connection piece of the housing Housing A housing is a solid shell, which surrounds a content, either protecting the content from external influences, or protecting the environment from the content. is usually fitted with a gate valve that is provided by the customer and aids the normal operating procedure. During normal operation, the valves are kept in the open position. It is only closed in case of emergency or for necessary repairs to the gate valve. The key feature of these valves is the shut-off element inside the container.

The Internal Safety Valve is operated/opened by a pneumatic actuator. The required closing force is provided by sufficiently dimensioned compression springs installed in the actuator. The controls must be designed in a way so that in the event of a malfunction Malfunction Devices, protective system, and components do not fulfill their intended function. , i.e., if the control substance (compressed air for the actuator and/or electrical power for the 3-way solenoid valve) fail, the internal safety valve Internal safety valve An internal safety valve is a shut-off valve for tanks. automatically seals tightly. By attaching an additional element, the Internal Safety Valve can also be opened or closed manually. This attachment must be removed for the valve to operate automatically. The PROTEGO® SI/DP is available in various nominal sizes. Optionally, the Internal Safety Valve can be equipped with an internal nozzle to connect to a suction and filling pipe or a swing pipe system.