A mechanical seal testing system includes a mounting ring and a testing table. The mounting ring includes a first side configured to couple to a mechanical seal, the mechanical seal configured to couple to an oil pump, and a second side configured to couple to a stuffing box, the stuffing box configured to couple to a water pump. The testing table includes a surface configured to collect fluid leaked by the mechanical seal or the stuffing box. The mounting ring is coupled to the surface of the testing table.

A mechanical seal testing system includes a mounting ring and a testing table. The mounting ring includes a first side configured to couple to a mechanical seal, the mechanical seal configured to couple to an oil pump, and a second side configured to couple to a stuffing box, the stuffing box configured to couple to a water pump. The testing table includes a surface configured to collect fluid leaked by the mechanical seal or the stuffing box. The mounting ring is coupled to the surface of the testing table.

Device for testing the sealing of at least one system for insulating two mediums in a sealed manner, the system including a flange and a sealed door mounted in the flange, the test device including a casing including an inflatable seal intended to contact, in the inflated state, with the system and to ensure a sealing enabling the definition of a test volume between the system and the casing, a pneumatic pump and a pneumatic circuit configured to connect, in a first step, the pump to the inflatable seal such that the pump inflates the inflatable seal, and in a second step the pump to the test volume such that the pump generates in the test volume a pressure at a given value, and sensor for measuring the pressure in the test volume.

A multi-seal sealing assembly with sensors includes a housing, a first sensor and a second sensor. The housing can receive multiple seals and can mount to a surface of a tool. The multiple seals are configured to seal against fluid flow between the surface of the tool and the housing. Multiple sensors corresponding to the multiple seals are mounted to the housing adjacent respective seals and between the housing and the surface of the tool. The sensors sense a flow parameter at different levels responsive to an absence or a presence of fluid flow past the seals.

A method and apparatus to ensure proper operation of an air permeable vent on an electronic device by allowing the vent and its surrounding area to be pressure decay leak tested using liquid to create the seal around the air permeable vent. The method may include filling a chamber with a known volume of liquid to cover the vent. Then, a remaining volume of air can be pressurized and monitored to detect a liquid leak either through the vent or through the sealing surface around or between the vent and the substrate of the electronic device. A pressure decay unit may adequately determine a leak rate to determine if the electronic device will pass or fail the required IP rating.

A method for testing whether a sealing method is effective may include the steps of testing a flow characteristic of the substrate, sealing the substrate, re testing the flow characteristic of the substrate, then comparing the before and after flow characteristics of the substrate to determine whether the sealing step was effective or to quantify a sealing effectiveness to the sealing step.

A method for testing whether a sealing method is effective may include the steps of testing a flow characteristic of the substrate, sealing the substrate, re testing the flow characteristic of the substrate, then comparing the before and after flow characteristics of the substrate to determine whether the sealing step was effective or to quantify a sealing effectiveness to the sealing step.

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 pressure detection device is mounted within an actuator housing between a piston rod and the housing, to receive fluid leaked past a seal, via a bore in the housing. The pressure detection device is configured to provide an output indicative of the pressure or flow of the leaked fluid in the bore. Thus, the leaked fluid diverted via the bore operates the pressure detection device to provide an output indicative of leakage.

A hydraulic cylinder unit (1) having a hydraulic cylinder (2), a piston (3) which can be moved in the hydraulic cylinder (2), and a servo valve (7). The piston (3) separates working volumes (5A, 5B) of the hydraulic cylinder unit (1) from one another. The servo valve (7) is connected to a hydraulic pump (8), a tank (9), and the working volumes (5A, 5B). The servo valve (7) is supplied with a pump pressure (pP) via the hydraulic pump (8). The tank (9) has a tank pressure (pT). The servo valve (7) is adjusted to a defined valve position (y). A piston position (z) of the piston (3) in the hydraulic cylinder (2) and working pressures (pA, pB) which are applied to the working volumes (5A, 5B) are detected. An analysis device (12) ascertains a leakage coefficient () of the hydraulic cylinder unit (1) using the piston position (z), the working pressures (pA,pB), the valve position (y), the pump pressure (pP), and a value which represents the tank pressure (pT) in connection with time-invariant parameters of the hydraulic cylinder unit (1).