A system and method for cleaning and inspecting ring frames is disclosed here. In one embodiment, a vacuum valve comprising at least one sealing O-ring; and a pressure monitoring tape on a mating surface on a vacuum processing chamber, wherein the pressure monitoring tape is configured to perform a pressure profile mapping between the mating surface on the vacuum processing chamber and a surface of the at least one sealing O-ring on the vacuum valve to determine a closing condition of the vacuum valve.

A seal assembly includes: a seal element; a part to be sealed; and a measuring arrangement for monitoring an aging of the seal element. The seal element is held on the part so as to provide a contact stress between the seal element and the part. The seal element has a contact face with which the seal element bears against the part. At least one measuring component of the measuring arrangement is integrated in each case into the seal element and into the part. The contact face of the seal element has a surface geometry with depressions.

A flexible joint for conveying a fluid in a fluid pipe in order to unite two pipes in leaktight and flexible manner comprises a tubular vessel having an upstream end for flexible and leaktight connection with an upstream tube, a downstream end for leaktight connection with a downstream tube, and a tubular bellows fastened in leaktight manner to the inside of the vessel, thereby defining two concentric spaces that are mutually separated in leaktight manner in normal operation. An inner space is provided in which the fluid flows between the upstream end and the downstream end. A peripheral space is situated between the inner space and a side wall of the vessel and is filled with an incompressible liquid. The joint further includes at least one sensor for detecting a hydrocarbon fluid in the incompressible liquid if the seal is broken between the inner space and the peripheral space.

A seal arrangement for sealing a gap between a machine element comprising a shaft and a housing includes: at least one sealing element formed, at least partially, from polymeric material. The at least one sealing element is of annular design and is made of PTFE. The at least one sealing element has at least one first annular element and at least one second annular element. The at least one first element is electrically conductive and the at least one second element is electrically insulating. The at least one first element is arranged axially adjacently to the at least one second element. The at least one sealing element is provided with electrically conductive contact elements. The housing has an installation space forming an annular groove for the at least one sealing element. The installation space is provided with a lining forming an insulation.

A load structure for testing a loadability of a large bearing includes a housing, a force-transmitting structure configured to generate a force or a moment relative to the housing and to transmit the force or the moment to a bearing ring of the large bearing, and a force-receiving element connected to the housing and configured to contact a counter ring of the large bearing. The housing is configured to support the counter ring indirectly via the force-receiving element such that the transmitted force or moment is transmitted to the housing at least partially via the counter ring and the force-receiving element, and a material of the force-receiving element has a higher degree of hardness than a material of the housing. Also a method of load testing a bearing.

A predictive diagnostics system for monitoring mechanical seals. The system autonomously detects a loss of lubrication within a sliding seal interface of a mechanical seal, the system including a loss of lubrication failure mode logic module configured to monitor data sensed by one or more sensors and diagnose conditions relating to a loss of lubrication within the sliding seal interface, and a plurality of other failure mode logic modules configured to monitor data sensed by the one or more sensors and diagnose conditions relating to specific types of mechanical failures known to occur in mechanical seal systems, the loss of lubrication failure mode logic module configured to determine which of the plurality of other failure mode logic modules are activated during the diagnosis of conditions related to a loss of lubrication within the sliding seal interface.

A computer implemented method of determining when to replace a seal component of a seal assembly includes obtaining an indication of an accumulation of acoustic emission energy emitted from the seal component over a period of time and determining an estimate of remaining lifetime of the seal component based on the indication.

The invention provides a sealing assembly that includes an elastic seal lip having a movable part. The seal lip is configured to be attached to a first part of a machine and to be in sliding contact with a second part of the machine. It is proposed that at least one vibration sensor is fixed to the movable part of the seal lip.

Disclosed is a system for testing the tightness of a cable gland feed-through of a partition, in particular of an immersible electrical connector, of the type including a cable gland body in which a seal and a cable gland rammer for compressing the seal are placed, characterized in that it includes a tightness testing ring inserted in the seal and provided with a bore opposite a hole of the cable gland body opening on same, and provided with a connection to a pressure/vacuum source for testing the tightness of the cable gland.

Disclosed is a system for testing the tightness of a cable gland feed-through of a partition, in particular of an immersible electrical connector, of the type including a cable gland body in which a seal and a cable gland rammer for compressing the seal are placed, characterized in that it includes a tightness testing ring inserted in the seal and provided with a bore opposite a hole of the cable gland body opening on same, and provided with a connection to a pressure/vacuum source for testing the tightness of the cable gland.