A seal monitoring system includes at least one sensor configured to couple to an outer surface of a housing and to output a sensor signal indicative of deformation of the housing. The housing is configured to receive an insert within an internal cavity of the housing, and an engageable seal is configured to selectively establish a seal between the insert and the housing. The seal monitoring system also includes a controller communicatively coupled to the at least one sensor. The controller includes a memory and a processor, the controller is configured to determine a degree of engagement of the engageable seal based on the deformation of the housing. Additionally or alternatively, the controller is configured to determine a fluid pressure within the housing based on the deformation of the housing.

A portable appliance testing apparatus includes a water tank and a pump configured to draw water from the water tank and pressurize the water within a piping assembly. The apparatus further includes a pressure regulator switch coupled to the piping assembly to enable control of the pump based on a pressure within the piping assembly. The apparatus also includes at least one appliance connector coupled to the piping assembly to enable attachment of an appliance thereto.

In a steam turbine seal packing performance monitoring system, steam pressure is measured by installing a pressure sensor inside a seal packing for preventing steam from leaking, so that pressure information can be transmitted using magnetic field communication in order to externally monitor seal packing performance. The system includes a seal packing unit that is installed on a rotor shaft and has a plurality of seal packs disposed along an axial direction of the rotor shaft; a pressure sensor installed inside the seal packing unit to detect a pressure of steam leaked from inside the seal packing unit and to transmit a magnetic field signal by converting a detection signal indicative of the detected pressure into the magnetic field signal; and an adapter for receiving the magnetic field signal, converting the received magnetic field signal into pressure data, and calculating a leakage amount of steam based on the pressure data.

A horizontal high-speed testing device for a spiral seal of a cone bit bearing is provided. The device comprises a shaft, a spiral sleeve and a cone. The spiral sleeve is in threaded connection to the cone. Sealing threads are provided on an inner diameter of the spiral sleeve. Both the spiral sleeve and the cone are sheathed on the shaft. By the testing device of the present invention, a spiral seal structure for a cone bit bearing is simulated, and the cone drives the spiral sleeve to rotate; the sand draining performance of the spiral seal can be tested in two ways, i.e., by measuring the time required to drain the sand-containing liquid and by measuring the weight of drained sand, so that the smooth production and application of spiral seal products can be assured.

A seal integrity verification system includes a pressure source, a valve, and a pressure sensor. The pressure source is fluidly connected to a housing having at least one sealing member. The valve is fluidly connected to the pressure source and the housing. The valve is movable between a first open position and a closed position. The pressure sensor is arranged to provide a first signal indicative of a pressure within the housing.

A leak testing apparatus is provided, for testing connections between tubes penetrating a plate material. A housing is disclosed having a central cylindrical longitudinal hollow. A piston arranged inside the housing, where a distal end of the piston in use is inserted into the tube. A seal arranged circumferentially on the piston, such that in use the second seal may be brought into sealing engagement with the tube. A second end of the housing is closed by an endcap where at least one channel is provided longitudinally in the piston and a connection to the channel allowing connection to a source of pressurized medium is provided, connecting the pressurized medium to a space, in use limited by the first seal, the plate material, the tube and the second seal, and optionally part of the piston and part of the housing.

This seal state detection device includes a plurality of part case members including a cylinder facing part and a rod facing part and are aligned in a circumferential direction of a cylinder by causing the cylinder facing part to face the cylinder and the rod facing part to face a rod so that a housing chamber for housing a part of the cylinder and a part of the rod is formed between the cylinder facing part and the rod facing part. The cylinder facing part includes a seal part which contacts with the cylinder. The seal part includes a protruding part formed at one end and a recessed part formed at the other end in the circumferential direction of the cylinder. The protruding part and the recessed part are fitted to each other when the plurality of part case members are aligned in the circumferential direction of the cylinder.

The method for testing the integrity of a seal of a cavity in an engine includes providing a sealed test tank external to the cavity, the test tank having an internal volume that is particularly selected, as described herein. A pressure differential is generated between the test tank and the cavity, by creating an initial test pressure within the test tank that is different than an ambient pressure inside the cavity. Gas flow between the test tank and the cavity is then permitted, and a change in pressure within the test tank is measured, as is a test time required for the pressure inside the test tank to reach a reference pressure. The measured test time is compared with a predetermined reference time, and the integrity of the seal may be confirmed when the test time is greater than or equal to the reference time.

An operating system cartridge for an annular blowout preventer includes one or more annular walls that define an annular chamber. The operating system cartridge also includes a piston assembly that has an annular piston positioned within the annular chamber and a pusher plate configured to contact an annular packer assembly of the annular blowout preventer when the operating system cartridge is installed within a housing of the annular blowout preventer. The operating system cartridge further includes one or more fluid conduits extending through the one or more annular walls, wherein the one or more fluid conduits are configured to provide a test fluid to the annular chamber to facilitate testing of the operating system cartridge prior to installation within the housing of the annular blowout preventer.

A liquid leakage detection device of the present invention includes a sensor unit and a determination unit. The sensor unit is configured to detect liquid between seals of a plurality of seals that are arranged aligned in an axial direction on an inner circumference of a shaft supporting member, which is an inner circumference of the shaft supporting member into which a shaft is movably inserted, to seal an outer circumference of the shaft. The determination unit is configured to determine whether or not liquid leaks, through detection of liquid by the sensor unit.