Abstract: An inlet adapter includes a top portion threadingly engageable to a body portion, an expandable portion disposed adjacent the body portion, and a bolt threadingly engageable to the top portion, the bolt securing the expandable portion adjacent the body portion and compressing the expandable portion in association with rotation of the body portion about the top portion.

Abstract: A coupling used during testing of a water line including an upstream pipe and a downstream pipe connected by the coupling. A removable barrier disk prevents water from flowing through the connected pipes until after testing, when the disk is then detached from the body member of the coupling. A piercing assembly interacts with a groove near the perimeter of the disk to initiate a tear that propagates along the groove as the disk is pulled away from the body member of the coupling. The piercing assembly is attached to the disk by a fulcrum element offset with respect to a center of the planar disk.

Abstract: A system for testing systems which are in turn used to test the leaktightness of a hollow body is suggested. Instead of the hollow body, a test body (2) is placed in the system which generates a defined pressure increase in a measuring chamber (4) within a pre-determined time span. This defined pressure increase corresponds exactly to the pressure increase generated by a hollow body with a small amount of leakage, wherein the hollow body can still just be regarded as leaktight. The test body can be configured as a glass capillary which extends in a sealing manner between two chambers with different air pressure. Alternatively, the test body can comprise a material which can accept a defined amount of moisture from the ambient atmosphere during storage. A vacuum formed around the test body causes moisture to be withdrawn from the test body and at least partially evaporated in the vacuum, which again leads to an increase in pressure in the chamber.

Abstract: An improved testing device for testing a drainage or plumbing system for vertical piping is provided which allows the tester to determine which particular floor is being currently checked for leaks at any time during the test. The testing device includes a tee disposed in fluid tight series communication between a drainage system and drain. A controller means is included which utilizes a ball valve to prevent water spillage during removal of the testing device when testing the drainage system for leaks. A ball valve actuator facilitates actuation of the ball valve. A closure plug assembly is provided which includes multiple ports adapted to accommodate a valve stem of the controller means and a fillgauge apparatus. A fluid elevation gauge provides tester with a visual readout of water elevational levels. A lightweight container is provided to store the testing device to facilitate transportability.

Abstract: Measuring elements for the output of measured quantities in respect of the flow, namely the flow quantity and direction, the water pressure and the flow noise are integrated in a measurement probe (1) for water supply networks (13), whereby all these measuring elements are connected or can be connected to a data collector (12) by means of transmission by radio, modem or cable connection. The measurement probes are installed permanently at the key points (10) and at the most varied measurement points (11) following one another as closely as possible in the water supply network (13) and can thus contribute, by delivering all the necessary data, to the rapid tracing of leaks with pinpoint accuracy as well as to constant monitoring.

Abstract: A system is provided for testing a flexible tube. First and second hollow mandrels are inserted into opposing ends of the tube. Each mandrel has a conically tapered portion at one end thereof and a cylindrical portion extending from the conically tapered portion. The cylindrical portion has a plurality of annular indentations formed thereabout. Each of a plurality of clamps encircle the tube in line with one annular indentation to sealably engage the tube. A fluid delivery system is coupled between the cylindrical portions of the mandrels to deliver a flow of fluid through the tube via the mandrels. A measured strain producing load, continuous or cyclical, is applied by an apparatus which controllably moves the first mandrel relative to the second mandrel such that a cross-sectional shape of the tube between the mandrels is altered.

Abstract: A method and device for pressure testing a pipe line is provided wherein a fitting is inserted into the pipeline by inserting male ends of the pipeline into female ends of the fitting to define a flow path through the fitting extending along a longitudinal axis. The fitting has an internal recess cooperating with a test slide to block flow through the fitting. An externally accessible port allows insertion and removal of the test slide. The test slide has an internal recess in which a pressure release slide moves to open a hole to release pressure, and to close the hole to block flow through the fitting for pressure testing. After testing and the release of the fluid test pressure, the test slide is removed and a finish slide is inserted into the recess. The finish slide has an opening located and configured to coincide with the flow path through the male ends of the pipes, and to block the recess to provide a substantially uniform, cylindrical flow path through the fitting.

Abstract: A unitary removable barrier for installation in a cylindrical water line to selectively block the water line to passage of water therethrough. The unitary removable barrier is composed of a single piece body having at least one cylindrical section sized to receive upstream and downstream pipes of the water line. A planar disk is molded with the cylindrical section and is of a circular circumference which completely blocks the water line but which is selectively removable from the cylindrical section thus removing the barrier to the passage of water through the line. Removal of the barrier is facilitated through the use of a piercing device and pull tab which can be actuated from a position outside of the waste line.

Abstract: A unitary removable barrier for installation in a cylindrical water line to selectively block the water line to passage of water therethrough. The unitary removable barrier is composed of a single piece body having at least one cylindrical section sized to receive upstream and downstream pipes of the water line. A unitary planar disk is molded with the cylindrical section and is of a circular circumference which completely blocks the water line when in place but which is selectively removable from the cylindrical section thus removing the barrier to the passage of water through the line.

Abstract: A penetration fitting for forming a sealed connection between a conduit and a containment structure in an underground storage tank fueling system is provided that includes a main fitting element for forming a sealed connection to each of the conduit and the containment structure, wherein the main fitting element includes an interstitial space that is in fluid communication with each of the conduit and the containment structure. In one embodiment a monitoring fluid is disposed in the interstitial space and a sensor is used to monitor the level of the monitoring fluid.

Abstract: The present invention provides a sealing assembly for protecting a downhole connection. The sealing assembly comprises independently energized metal-metal seals and a housing that prevents the energization of individual seals from affecting other seals.

Abstract: A pipe test plug for scaling and pressure testing a water utility supply line or other pressurized pipe has a plug body sized and shaped for insertion into an open end of a water supply line. The plug body has an inner and an outer end, with first and second spaced apart annular seals supported on the plug body. The annular seals and plug body together seal the water supply line when the pipe test plug is inserted therein. A securing member extends through at least one portion of the water supply line and into the plug body inserted therein for securing the pipe test plug in the water supply line under test pressure, the securing member being received in the plug body between the second annular seal and the other end of the plug body. The plug body may include first and second cylindrical seal plates each defining a peripheral groove for respectively receiving and supporting the first and second annular seals. The cylindrical seal plates are connected by web portions.

Abstract: A plumbing testing device (10) has a pair of aligned and closed pipe sections (12 and 14) with open sides facing in opposite directions. The plumbing testing device (10) is longitudinally collapsible to facilitate removal from between pipe ends (19 and 20). The pipe sections (12 and 14) each have a port (32, 35), a transparent hose (38) connects the ports to one another, and a valve (30) controls the flow of water between the pipe sections (12 and 14) through the hose (38).

Abstract: A tool for conducting localized testing of the integrity of a pressure seal on an aircraft. The tool comprises a body having an exterior surface and an interior cavity. A peripheral edge on the body defines an opening to the interior cavity. The tool is positioned on an aircraft over the pressure seal to be tested with the interior cavity communicating with the pressure seal. A sealing member is positioned between the aircraft and the peripheral edge so that a fluid tight seal is formed between the tool and the aircraft. A vacuum is created in the interior cavity. After a predetermined length of time the amount of vacuum in the interior cavity is observed and the integrity of the pressure seal is determined.

Abstract: A rotary seal machine is provided and includes a motor drive shaft which extends into and through a canister. A test seal specimen surrounds the shaft in the outer wall, and contaminant circulates through the canister for inducing leakage of the contaminant through the seal being tested. The seal and protruded shaft are visually exposed from outside the outer wall so that contaminant leakage past the seal can be visually detected.

Abstract: The invention concerns a device (1) for testing the sealed integrity of a chamber (2), in the form of a particular clamp capable of being opened, in functional position, to sealingly enclose all or part of the chamber (2) to define theraround a vacuum release chamber (3). It comprises: a rigid support frame (5) in several sections (10a, 10b) mutually articulated (111, 112) for fixing or removing the clamp on the chamber. said frame being like a U-shaped drip channel open radially inwards, and a jacket (6) made of a relatively flexible material supported by the frame (5) and shaped, at the edges of the drip channel, like deformable sealing lips (16) tightly pressed on the chamber surface.

Abstract: A sealed connection device in which, two chambers (“A” and “B”), each has an access opening equipped with a door (2, 3) cooperating with a flange (4, 5) with the interposition of sealing means (12, 14), one (2) of the two doors being articulated with its flange (4). The detection device comprises two grooves (30, 35), formed in the external face of the flange (4) of chamber (A), a seal (36) placed in the groove (35), a network of ducts (31, 32, 33) formed in flange (4) and connecting the inner groove (30) to a coupling (34), a vacuum pump (38) the intake (37) of which is connected to the said coupling, and a sensor (44) measuring the strength of the partial vacuum in the pneumatic circuit leading to the groove (30) and reacting on alarm means (47, 48) if ever the partial vacuum does not reach an appropriate value.

Abstract: A pressure test cap includes a mounting collar with an outer rib to limit depth of insertion of the cap into a pipe. A closure disc which seals the mounting collar is connected to the collar through an inner rim by a weakened ring. An outer rim section registers with the inner rim so that impacts to the outer rim are transferred to the weakened ring to separate the disc from the collar. The closure disc includes a centrally positioned nipple for connection of a conduit of a pressurized test fluid source. The nipple is closed by a break-away nipple plug. The nipple plug has a centrally located indentation for piercing to bleed trapped air from the system and resealing by a screw.

Abstract: There is described herein a method and a device for determining leaks at the seal of a valve or a valve rod, in particular of a process valve so that an indication that the valve-rod seal needs changing can then be obtained in good time. In order to determine the leak, the pressure is determined, if appropriate as a function of time, in a control volume between a first valve-rod seal and a second valve-rod seal, and the leak flow rate is calculated therefrom.

Abstract: A unitary removable barrier for installation in a cylindrical water line to selectively block the water line to passage of water therethrough. The unitary removable barrier is composed of a single piece body having at least one cylindrical section sized to receive upstream and downstream pipes of the water line. A unitary planar disk is molded with the cylindrical section and is of a circular circumference which completely blocks the water line when in place but which is selectively removable from the cylindrical section thus removing the barrier to the passage of water through the line.

Abstract: A unitary removable barrier for installation in a cylindrical water line to selectively block the water line to passage of water therethrough. The unitary removable barrier is composed of a single piece body having at least one cylindrical section sized to receive upstream and downstream pipes of the water line. A unitary planar disk is molded with the cylindrical section and is of a circular circumference which completely blocks the water line when in place but which is selectively removable from the cylindrical section thus removing the barrier to the passage of water through the line.

Abstract: A tool for conducting localized testing of the integrity of a pressure seal on an aircraft. The tool comprises a body having an exterior surface and an interior cavity. A peripheral edge on the body defines an opening to the interior cavity. The tool is positioned on an aircraft over the pressure seal to be tested with the interior cavity communicating with the pressure seal. A sealing member is positioned between the aircraft and the peripheral edge so that a fluid tight seal is formed between the tool and the aircraft. A vacuum is created in the interior cavity. After a predetermined length of time the amount of vacuum in the interior cavity is observed and the integrity of the pressure seal is determined.

Abstract: A test plug and method for isolating and testing a connection, such as a welded connection, which interconnects a wall of tank, vessel, or pipe to a branch pipe or nozzle. The test plug isolates the connection from the remainder of the tank, vessel or piping system and enables pressure/leak testing of the connection without requiring pressurization of the entire tank or vessel or a large section of the piping system. Further, the test plug can be utilized during welding operations to isolate harmful materials, vapors or fumes existing within tanks, vessels or piping systems from the weld location and to permit the flow of an inert gas to safely flush any potentially harmful vapors or the like away from the welding area.

Abstract: A leak testing device includes a generally cylindrical sealing gasket which defines a recess therein. The gasket includes first and second end portions for receiving the respective ends of two adjacent conduits. A shoulder portion extends from the gasket. A diaphragm member is positioned in the gasket. A hole is provided in the diaphragm member which can be selectively opened or closed by a valve operably connected to the diaphragm member to thereby permit or restrict the flow of a fluid between the two conduits. A coupling for clamping the leak testing device about one or two conduits includes a generally cylindrical member having a central axis and including a plurality of sections. The sections are interconnected to one another by at least two hinge members in a manner that two sections have free end points to be releasably fastened together.

Abstract: A hydrostatic tester for pipe has a frame. A pair of heads are mounted to the frame and spaced apart from each other for receiving a pipe between them. A piston is carried by the frame for moving one of the heads toward the other and holding the heads in abutment with the pipe. Each head has a mandrel, the mandrel having an outer surface that inserts into one of the ends of the pipe. A seal on the outer surface sealingly engages the inner diameter of the pipe. Another seal located on the head sealingly contacts one of the ends of the pipe.

Abstract: A leakage detecting device has a cover, a first cup and a second cup. The cover is mounted on the opening of the water tank and has a through hole. The first cup is connected to the cover and communicates with the through hole in the cover. A tortuous air channel is defined in the first cup. The second cup is mounted on the first cup and has a second tortuous air channel communicating with the first tortuous air channel in the first cup. Accordingly, the leakage of cylinders of the vehicle engine can be precisely detected from the water tank of the vehicle.

Abstract: The present invention comprises a device and a method for determining if a system with multiple seals has a leak and, if so, which of the multiple seals is causing said leak. The device and method employ a change in the optical reflectivity of a transparent, plastic membrane due to pulling a vacuum on the seal to make the above mentioned determination.

Abstract: The invention relates to a method for the integral leak detection on test samples with relatively thin walls, in which the test sample (1) comprising the test gas is tested for leaks in a test chamber; in order to test whether or not test samples are properly filled with test gas, it is proposed that for checking the test gas concentration in the test samples (1), the test gas concentration in at least one of the test samples (1) is measured thereby that its wall (2) is provided with a leak (4), and that with this test sample (1) a leak detection process is carried out.

Abstract: A unitary removable barrier for installation in a cylindrical water line to selectively block the water line to passage of water therethrough. The unitary removable barrier is composed of a single piece body having at least one cylindrical section sized to receive upstream and downstream pipes of the water line. A planar disk is molded with the cylindrical section and is of a circular circumference which completely blocks the water line but which is selectively removable from the cylindrical section thus removing the barrier to the passage of water through the line. Removal of the barrier is facilitated through the use of a piercing device and pull tab which can be actuated from a position outside of the waste line.

Abstract: A test plug and method for isolating and testing a connection, such as a welded connection, which interconnects a wall of tank, vessel, or pipe to a branch pipe or nozzle. The test plug isolates the connection from the remainder of the tank, vessel or piping system and enables pressure/leak testing of the connection without requiring pressurization of the entire tank or vessel or a large section of the piping system. Further, the test plug can be utilized during welding operations to isolate harmful materials, vapors or fumes existing within tanks, vessels or piping systems from the weld location and to permit the flow of an inert gas to safely flush any potentially harmful vapors or the like away from the welding area.

Abstract: A fixture for testing a sealed container for possible leakage, having a removable cover and a silicon gel gasket affixed to the undersurface of the cover, and having a lower housing with a cavity for receiving the sealed container, the container top surface being isolated from the rest of the container surfaces by the silicon gel gasket.

Abstract: There is described a method and an apparatus for testing or isolating a section of pipe, the apparatus comprising a cylindrical mandrel for insertion into a section of pipe, the mandrel including at least one portion of progressively increasing diameter, and at least one seal disposed around the mandrel and actuatable in response to applied fluid pressure to move along the increasing diameter portion of the mandrel, causing the seal member to radially expand into sealing contact with an inner surface of the pipe.

Abstract: The invention relates to an electric contact array having two contacts between which an electrically conductive connection exists, wherein the contact array is watertight and dust-tight, wherein the contacts are disposed in a sealed area. According to the invention, two sealing elements are disposed at a distance from one another in order to seal the sealed area. A test area is provided between the sealing elements, said test area having a hole that enables access from the outside.

Abstract: A unitary removable barrier for installation in a cylindrical water line to selectively block the water line to passage of water therethrough. The unitary removable barrier is composed of a single piece body having at least one cylindrical section sized to receive upstream and downstream pipes of the water line. A unitary planar disk is molded with the cylindrical section and is of a circular circumference which completely blocks the water line when in place but which is selectively removable from the cylindrical section thus removing the barrier to the passage of water through the line.

Abstract: A sealed connection device in which, two chambers (“A” and “B”), each has an access opening equipped with a door (2, 3) cooperating with a flange (4, 5) with the interposition of sealing means (12, 14), one (2) of the two doors being articulated with its flange (4). The detection device comprises two grooves (30, 35), formed in the external face of the flange (4) of chamber (A), a seal (36) placed in the groove (35), a network of ducts (31, 32, 33) formed in flange (4) and connecting the inner groove (30) to a coupling (34), a vacuum pump (38) the intake (37) of which is connected to the said coupling, and a sensor (44) measuring the strength of the partial vacuum in the pneumatic circuit leading to the groove (30) and reacting on alarm means (47, 48) if ever the partial vacuum does not reach an appropriate value.

Abstract: A method and apparatus for testing plumbing installations including a tool for making an opening through a test cap or other blockage in a fluid-carrying line of a plumbing system. The tool and cap make the testing method possible. During the rough-in plumbing phase of construction, a test cap welded in the drain pipe seals the drain line from the sewer line at the location of the clean-out. Thereafter, the rough-in plumbing system is tested by pressurizing the system through the clean-out on the building side of the cap. Following successful completion of this test, the top-out plumbing is completed, leaving the test cap welded in place. After the roof vents are in, the top-out test of the plumbing system is made, also through the clean-out. After final test and inspection, a special tool constructed in accordance with the present invention is inserted down the clean-out to penetrate and ream-out the test cap.

Abstract: An apparatus for testing a waterproof state of a sub insertion portion of a grommet provided in eccentric with a main insertion portion. The apparatus is provided with an enclosure for sealably enclosing an end portion of the sub insertion portion, an air feeder for feeding air for testing to a space in which the sub insertion portion is sealably accommodated, and a judging apparatus for judging whether the sub insertion portion is in a good waterproof state based on a status of the air fed from the air feeder.

Abstract: The present invention provides an apparatus and method for evaluating the integrity of seal on liquid-filled container. According to one aspect of the invention, the apparatus comprises a for containing a liquid solution and a clamp with a first and second member between which the container is engaged. The clamp is positioned with respect to the tank such that a portion of the container properly situated in the clamp will extend into the tank and contact the liquid solution. A ram and cylinder are operatively connected to the clamp to engage the container. A seat is provided to support a portion of the container such hat at least a portion of the container supported by the seat will extend into the tank. A drill is provided to pierce a surface of the container to make an opening preferably at a location above the solution level of the liquid solution in the immersion tank.

Abstract: The present invention relates to a fixture to be used during pressure/vacuum testing. The fixture includes a shell having a main body and a coupling ring surrounding the main body. The coupling ring has threads for engaging an external thread connection on the device to be tested and for facilitating installation and removal of the fixture. The fixture further includes a back plate welded to one end of the main body and a pressure adapter for connecting the fixture to a pressure source or a vacuum source. The fixture still further includes an optional insulator to be placed in contact with the device being tested.

Abstract: There is described a method and an apparatus for testing or isolating a section of pipe, the apparatus comprising a cylindrical mandrel for insertion into a section of pipe, the mandrel including at least one portion of progressively increasing diameter, and at least one seal disposed around the mandrel and actuatable in response to applied fluid pressure to move along the increasing diameter portion of the mandrel, causing the seal member to radially expand into sealing contact with an inner surface of the pipe.

Abstract: A tube testing system consists of two subassemblies, the probe and the applicator. The probe uses a stack of Belleville style washers that when compressed allow the locking fingers to relax and the probe to be inserted into the tube. Once the probe is placed in the correct location using the applicator, the Belleville style washers are allowed to expand, locking in the fingers and engaging the urethane seals. As the water fills the tube, the air is pushed through a bleed hole in the mandrel of the probe. The bleed hole leads to a chamber in the top of the probe that contains a plastic ball. The ball floats on water and as the chamber fills, the ball seals off the leak path and the tube can then be pressurized and the test performed. Once the test is complete, the water is drained and using the applicator, the probe is removed from the tube.

Abstract: A leakage detecting instrument includes a connecting device (1) and an air-inlet device (2) combined with the connecting device (1). The connecting device (1) has a cap (10) adapted to be firmly secured on an inlet tube (31) of a water tank (30) and a screw rod (13) rotably penetrates the cap (10). The screw rod (13) supportably extends between the cap (10) and the inlet tube (31) to provide resistance to an internal pressure of the water tank (30) when air is compressed into the water tank to detect leakage.

Abstract: The present invention provides an apparatus and method for evaluating the integrity of a seal on liquid-filled container. According to one aspect of the invention, the apparatus comprises a tank for containing a liquid solution and a clamp with a first and second member between which the container is engaged. The clamp is positioned with respect to the tank such that a portion of the container properly situated in the clamp will extend into the tank and contact the liquid solution. A ram and cylinder are operatively connected to the clamp to engage the container. A seat is provided to support a portion of the container such that at least a portion of the container supported by the seat will extend into the tank. A drill is provided to pierce a surface of the container to make an opening. The drill is positioned such that the opening can be made while the container is in the clamp and/or the seat such that at least a portion of the container extends into the tank.

Abstract: The present invention relates to a fixture to be used during pressure/vacuum testing. The fixture includes a shell having a main body and a coupling ring surrounding the main body. The coupling ring has threads for engaging an external thread connection on the device to be tested and for facilitating installation and removal of the fixture. The fixture further includes a back plate welded to one end of the main body and a pressure adapter for connecting the fixture to a pressure source or a vacuum source. The fixture still further includes an optional insulator to be placed in contact with the device being tested.

Abstract: There is described a method and an apparatus for testing or isolating a section of pipe, the apparatus comprising a cylindrical mandrel for insertion into a section of pipe, the mandrel including at least one portion of progressively increasing diameter, and at least one seal disposed around the mandrel and actuatable in response to applied fluid pressure to move along the increasing diameter portion of the mandrel, causing the seal member to radially expand into sealing contact with an inner surface of the pipe.

Abstract: The invention provides an assembly for hydrostatic testing of welds between components, such as but not limited to welds which connect components such as nozzles (2) or patches (40) to a pressure vessel (1). A sealing body (8) is secured against one of the components to define a sealed space (25) adjacent to the weld (5) to be tested. The body is secured by at least one tie rod (9), positioned to pull the body against the component by tightening of a nut (12). Pressure testing can then be carried out by introducing pressurized fluid into the sealed space and applying appropriate monitoring techniques to check for leakage.

Abstract: A method and apparatus for detecting leaks in hollow bodies can be used to detect leaks in recreational vehicles which have standard air vents in their roofs. The apparatus includes a cuff which can be attached to a standard air vent from inside the vehicle. A conduit connects the cuff to an air impeller. The impeller can draw air into the vehicle through the roof vent to increase air pressure within the vehicle. Soapy water or a similar substance is then applied to the outside of the vehicle. Leaks are evidenced by the presence of bubbles in the soapy water, and can then easily be located and repaired. The air impeller can be powered from standard AC power receptacles inside the recreational vehicle.

Abstract: A leak testing device includes a generally cylindrical elongated sealing gasket which defines a recess therethrough. The gasket includes first and second end portions for receiving the respective ends of two adjacent conduits. A shoulder portion extends radially into the recess for supporting a diaphragm member thereon. The diaphragm member includes a diameter substantially corresponding to the diameter of the recess. In a preferred embodiment, the diaphragm member is made integral with the gasket. A hole is provided in the diaphragm member which can be selectively opened or closed by a valve assembly provided on the diaphragm member to thereby permit or restrict the flow of a fluid between the two conduits.

Abstract: The present invention provides an apparatus and method for evaluating the integrity of a seal on liquid-filled container. According to one aspect of the invention, the apparatus comprises a tank for containing a liquid solution and a clamp with a first and second member between which the container is engaged. The clamp is positioned with respect to the tank such that a portion of the container properly situated in the clamp will extend into the tank and contact the liquid solution. A ram and cylinder are operatively connected to the clamp to engage the container. A seat is provided to support a portion of the container such that at least a portion of the container supported by the seat will extend into the tank. A drill is provided to pierce a surface of the container to make an opening. The drill is positioned such that the opening can be made while the container is in the clamp and/or the seat such that at least a portion of the container extends into the tank.

Abstract: A method for detecting leakage in a bellow-type flow control valve and an apparatus for use in such detection are described. In the method, a leakage detection device can be connected in line and in fluid communication between a shut-off valve and a bellow-type flow control valve. The leakage detection device includes a mass flow controller and a recording means for detecting any possible leakage of a facility gas that is used to open or close the bellow-type flow control valve into a process gas conduit through a defective bellow. The apparatus may be advantageously equipped with quick disconnect fittings such that it can be used for checking a large number of bellow-type flow control valves that are normally used on a semiconductor fabrication apparatus.