Patent ID: 9297377
Filing Date: 2016-03-29
CPC Classification: F04B,F04D,F16J

Claim Text:
1. A device for a dynamic sealing system for a pump connectable to a process fluid conduit by a process inlet line and a process outlet line for pressurising a process fluid, comprising at least one feed line running from a barrier fluid source toward the dynamic sealing system, wherein the dynamic sealing system comprises a first valve device arranged in the feed line, which is provided to open or close the feed line and a second valve device arranged such that in an open position, the second valve device opens a first bypass line that runs from a point on the feed line between the first valve device and a low pressure point at the pump in order to relieve pressure in a barrier fluid in the sealing system, and a control unit having means for receiving actual working pressure conditions of the pump, where the first and second valve devices are connected to the control unit which controls the first and second valve devices in accordance with the working pressure conditions of the pump, wherein the feed line splits into a first feed line and a second feed line, the first feed line comprises the first valve device and the second feed line comprises a second feed line valve device.