Abstract: Universal disinfecting connector, connector or cap can interface with male, female, female stopcock, and female hemodialysis threaded fittings, therefore encompassing an entire spectrum of disinfecting connectors. Disinfecting connector or cap includes a configuration of structural elements that provide a universal rotary cap incorporating rotary-activated interfaces and design features allowing the cap to be configured to selectively present any one of a plurality of connection types, or interfaces, for engaging, coupling, or capping, a corresponding type of a male or a female connector or luer.

Abstract: A dome cap and tail plug assembly for a flow control device include a dome that attaches to an upper end of a body of the flow control device and a tail plug that screws into a top of the dome cap. A seal is provided between the dome cap and the tail plug. The seal can be formed by one or more sealing elements, such as O-rings, positioned between the dome cap and the tail plug. The seal can also be provided by engagement between a shoulder on the tail plug bearing against an end face of the dome cap. Also, threads used to couple the tail plug to the dome cap could be conical threads, which also help to provide a seal between the dome cap and the tail plug.

Abstract: In well bores with included tubulars, it is often desirable to segregate a portion of the wellbore's pressure-driven fluid flowpath in the conduit portion formed by included tubulars to permit work to be completed in a pressure-controlled portion of that flowpath. The subassembly and included frangible device provided here does so with minimal exposure of seals to well fluid environments, and provides a field-adjustable variability to the pressure differentials required to open the conduit by removal of the frangible sealing device from the flowpath into which the subassembly is installed or included.

Abstract: A drainage device is provided. The drainage device includes a drainage head having at least one head portion having an internal collection space and provided with at least one through recovery passage, and an attachment sleeve at least partially deformable. The attachment sleeve can be secured to the drainage head and capable of being inserted inside the flow pipe. The drainage device further includes a compression washer attached on the attachment sleeve and a central screw. The central screw can be movable in relation to the drainage head and threadably engaged with the compression washer to obtain, under the effect of a rotation of the central screw relative to the drainage head, an axial movement of the compression washer on the side of the drainage head and an outward radial deformation of the attachment sleeve.

Abstract: A downhole temporary pressure isolation tool configured to withstand very high gas pressures at high temperatures may be achieved by a variety of configurations, processes, and techniques. In particular implementations, a barrier valve having one or more frangible discs configured to resist fluid flow in a particular specified duration. In some implementations, the barrier valve may achieve a V0 rating. In one embodiment, for example, a barrier valve may prevent the passage of fluid (i.e., gas and/or liquid) at 15,000 psi and a temperature of 400 degrees F. for at least 15 minutes. If the barrier valve has two frangible ceramic discs, it may prevent the passage of fluid from two directions for at least 15 minutes.

Abstract: A weld test plug has a flange; an actuator rod mounted to the flange, the actuator rod having: a part expander; an annular seal; and an axial stop; in which the actuator rod is connected to, during use, cause the part expander to actuate: the axial stop to move in a radially outward direction relative to the actuator rod; and the annular seal to radially expand and abut the axial stop. A method includes inserting an actuator rod into an open end of a vessel, the actuator rod carrying an annular seal, and an axial stop; sealing the open end of the vessel around the actuator rod; operating the actuator rod to actuate: the axial stop to move in a radially outward direction relative to the actuator rod; and the annular seal to radially expand to abut the axial stop and seal against an inner circumferential surface of the vessel.

Abstract: A system, method and apparatus for removing a test seal part from a vent positioned on a roof of a structure and being removable without requiring a person on site to accomplish the same includes a test seal part having a surface for connection enabling removal, wherein the seal part removably sealably connects to the plumbing vent pipe, and a remote controlled apparatus and/or remote controller directly or indirectly removes the test seal part. The remote controlled apparatus can includes an unmanned aerial vehicle (UAV) or a powered actuator having a receiver operably disposed adjacent the seal part in manner to actuate the seal part out of sealable connection with the vent pipe.

Abstract: A pipe isolation device and method of using the same. The pipe isolation device includes a control bar head, a first sealing head, and a second sealing head. The first sealing head has a first seal element and a first sliding engagement. The first sliding engagement permits the first sealing head to slide relative to the control bar head along a first fixed path and traverse a right angle to gain access to an interior space of a pipe. The second sealing head has a second seal element and a second sliding engagement. The second sliding engagement permits the second sliding head to slide relative to the first sealing head along a second fixed path and traverse the right angle to gain access to an interior space of the pipe.

Abstract: A valve assembly includes a valve housing having an inlet, an outlet and an opening, and an insert removably insertable in the opening. The insert has a first side facing upwards and a second side facing downwards when positioned in the opening. The first side and the second side have a conduit positioned therebetween, and a control valve located at least partially within the conduit and movable between an open position and a closed position. The control valve in the closed position stops fluid from passing through the conduit. When the insert is inserted in the opening and the control valve is in the closed position, the insert substantially seals the inlet and stops fluid flowing to the outlet.

Abstract: A profile system for a sanitary system, such as a floor-level shower, includes at least one profile element and at least one flat and flexible sealing element. The sealing element has a mounting area which, in a non-installed state, is fixed to the profile element by a mounting element. The sealing element includes at least one region overlapping the profile element, the overlapping region being adapted to fix the profile element in its mounting position.

Abstract: The invention discloses an intelligent plugging robot and method thereof for rerouting, maintaining and repairing long-distance pipelines. The intelligent plugging robot includes a through-flow governor, a flow-blocking mechanism and a telescopic mechanism, wherein the through-flow governor and the flow-blocking mechanism are symmetrically distributed on both sides of the device. The invention can realize remote, fast, safe and accurate plugging during maintaining and repairing the long-distance pipeline, wherein the telescopic mechanism cooperates with the flow-blocking mechanism to move autonomously in the pipe to achieve precise positioning, the through-flow governor can not only adjust the plugging robot but also ensure the cleaning of the pipe wall, make it stable contact with the signal transceiver, and realize the stable communication between the robot in the pipe and the remote monitoring machine.

Abstract: A method for detecting and repairing external diseases of a buried drainage pipeline includes steps of: S1, controlling a robot to enter the pipeline to perform comprehensive detection of pipeline diseases; S2, analyzing detected pipeline diseases with a computer terminal based on detection results of the robot, and determining locations of external diseases of the pipeline; S3, controlling the robot to detect a depth of the external diseases of the pipeline relative to a ground surface; S4, determining a projection position of the external diseases of the pipeline on the ground surface according to detection results of the step S2, and drilling a hole from the ground surface; determining a drilling depth according to detection results of the step S3, and inserting a grouting pipe; and S5, grouting and repairing the external diseases of the pipeline through the grouting pipe.

Abstract: An overflow cover interconnection system utilizes an overflow elbow with an upper portion for insertion through an overflow drain hole in a bathtub wall; a nut, ring, or other component that fits on or around the upper portion to secure the overflow elbow in position; and an overflow cap that shields the upper portion and nut, ring, or other component from view of a user of the bathtub. The system is configured for use with bathtubs having varying wall thicknesses, without necessitating any modifications.

Abstract: Techniques for implementing a system including a pipe segment and a test head. The test head includes a shell that defines an annulus cavity to be used to interface with an annulus of the pipe segment, in which the shell includes a bore insert having a male taper to be inserted into a pipe bore of the pipe segment, a testing port that extends through the shell and fluidly coupled to the annulus cavity, and an internal clamp assembly including clamp segments having a female taper that slidably interface with the male taper of the bore insert, in which an outer surface diameter of the clamp segments is controlled by position of the clamp segments on the bore insert to facilitate selectively securing and sealing an open end of the pipe segment in the test head to enable integrity of the tubing to be tested.

Abstract: An apparatus for hydrostatic testing of items containing flanged openings and which items require periodic pressure testing, such as flanged pipe sections, flanged pipelines, flanged hose assemblies, as well as other flanged equipment requiring periodic pressure testing. The apparatus is clamp-like and is comprised of multiple circular plates that are designed and arranged to hold a blind flange against the flange of the item to be tested. One of the circular plates contains a circular cavity into which the blind flange can be stored when the apparatus is not in use.

Abstract: A mechanical plug includes first and second plug portions and an elongate member. The first plug portion includes a first endwall and a first sidewall. The first sidewall includes a female section extending in a direction along a longitudinal axis of the mechanical plug. The second plug portion is movable relative to the first plug portion. The second plug portion includes a second sidewall, a second endwall coupled to the second sidewall, and a seal. The second sidewall includes a male section extending in a direction along the longitudinal axis. The seal surrounds a portion of the male section in a region along the longitudinal axis between the second endwall and the female section. The elongate member is coupled to the first and second plug portions. Actuation of the elongate member moves the first plug portion and the second plug portion toward each other to compress the seal.

Abstract: A top latch-in plug includes a housing having a bore and a transitionable seal. The transitionable seal seals the bore of the housing when in a first configuration, and the transitionable seal unseals the bore when in a second configuration. The transitionable seal is triggerable to transition from the first configuration to the second configuration. A casing floatation system includes a casing having a pre-load collar and a landing collar; and a lower bottom latch-in plug. The lower bottom latch in plug includes a catch mechanism compatible with the pre-load collar; and a landing mechanism compatible with the landing collar.

Abstract: A method checks a sealing of an interior space of a plug connection that is to be tested. The plug connection has two plug connection elements, namely a plug connector element and a mating connector element, the plug connector element being plugged into the mating connector element in a plug-in direction. One of the plug connection elements additionally has a test opening to the interior space, via which, for the purpose of checking the sealing, a test medium is applied to the interior space, and the test opening is then sealed toward the interior space.

Abstract: A top latch-in plug includes a housing having a bore; and a transitionable seal, wherein: the transitionable seal seals the bore of the housing when in a first configuration, the transitionable seal unseals the bore when in a second configuration, and the transitionable seal is triggerable to transition from the first configuration to the second configuration. A casing floatation system includes a casing having a pre-load collar and a landing collar; and a lower bottom latch-in plug comprising: a catch mechanism compatible with the pre-load collar; and a landing mechanism compatible with the landing collar.

Abstract: A high-pressure container has a body part, and a cap inserted in the body part, and the body part has a cylindrical liner, and a reinforcement layer provided on an outer circumferential surface of the liner for reinforcing the liner. The cap has a contact portion that contacts with an inner circumferential surface of the liner, a through-hole that communicates the inside of the body part with the outside, and a projecting portion that is pressed outward in radial directions of the body part, and bites into the reinforcement layer, so as to inhibit the cap from moving in the axial direction.

Abstract: A covering system is provided having a cover, with a first mounting geometry at least partially running circumferentially around the cover, a carrier plate designed to attach the cover, a seal at least partially running circumferentially around the carrier plate, and an elastic mounting geometry that is formed on the seal. The first mounting geometry and the elastic mounting geometry are designed and arranged for positive engagement with each other.

Abstract: A property assessment system is provided to assess a property for various purposes. The system includes a property assessment apparatus configured to be inserted into any space of a property and retrieved therefrom once necessary information is collected from the space. The property assessment apparatus operates to monitor various conditions in the space, which is used to assess the property.

Abstract: A plug for plugging a line includes a seal, a first end assembly and a second end assembly. The first end assembly includes a gripping member. An actuator is configured to draw the first and second end assemblies together when there is a relative motion between the actuator and the first end assembly. The actuator is configured to actuate the gripping member. An initial part of a motion of the actuator actuates the gripping member to grip an inner surface of the line, thus inhibiting a motion of the first end assembly, and a subsequent part of the motion of the actuator, relative to the thus motion-inhibited first end assembly, draws the second end assembly toward the first end assembly so as to compress the seal such that the seal may seal against the inner surface of the line thus plugging the line.

Abstract: An apparatus for hydrostatic testing of openings in items surrounded by a flange, such as flanged pipe sections, flanged pipelines, flanged hose assemblies, as well as other flanged equipment requiring initial and/or periodic pressure testing.

Abstract: A conduit locking device includes a housing having a first end, a second end, and a sidewall disposed between the first end and the second end. The conduit locking device may further include a slide engaged with the sidewall of the housing, the slide including an extension arm and an end portion structurally configured to engage with an inner wall of a conduit. The slide may be extendable via the extension arm from a first position substantially adjacent to the sidewall of the housing to a second position disposed away from the sidewall of the housing, where, when in the second position, the slide is configured to retain the conduit locking device at a fixed position within the conduit through the engagement of the end portion with the inner wall of the conduit.

Abstract: A pipe tester connector includes rigid cylindrical member. The rigid cylindrical member defines a first side hole. A continuous flexible cup member includes circular floor portion and a central tubular portion extending upwardly therefrom. A first flexible sleeve extends from the top of the flexible cup. The first flexible sleeve has a folded down first position and a folded up second position, in which it envelopes the end of the first pipe. A first hose clamp secures the flexible sleeve to the pipe. An attachment unit includes a rigid insert, an attachment pipe, a first adapter and an attachment. The rigid insert is disposed against the tubular portion of the interior surface of the flexible cup. The rigid insert defines a hole in alignment with the first side hole and the second side hole, through which the attachment pipe passes. An adapter is affixed to the attachment pipe.

Abstract: An arrangement for removing blow-by gases from a crankcase of an internal combustion engine, the blow-by gases being able to be supplied to an air intake system via a tube device, the tube device being connected or connectable to a component assigned to the air intake system and to a component which is in fluid connection to the crankcase. The tube device including a blow-by conduit. The risk of a leaking or incorrectly mounted tube device is avoided in that the tube device has a diagnostic conduit, a spurious air flow being detectable via the diagnostic conduit when the tube device is not tightly connected or is not connected.

Abstract: An assembly of a closure with a container, for sealing of the container, comprises the container having an inner container surface defining a cavity opening to ambient through an opening, the closure comprising an upper portion and a lower portion, the lower portion having a lower lateral surface, the lower portion being adapted to be inserted into the opening of the container and two grooves provided on the lower lateral surface and adapted to receive two respective sealing members, the two grooves being separated by a predetermined distance, the two sealing members provided in the two respective grooves, the two sealing members being adapted to provide sealing between the lower lateral surface and the inner container surface, wherein the lower lateral surface, the inner container surface and the two auxiliary sealing members together define an annular space and a barrier sealant in the annular space.

Abstract: A plunger for a gas producing well having a production tubing string has a plunger body with a pad receiving profile defined by first and second pad retainers. A plurality of pads is engaged between the first and second pad retainers, which permit limited radial movement of the pads sufficient to contact an inner surface of the production tubing string. A sheet of resilient material, acting as a spring member, is positioned within the pad receiving profile and between the plurality of pads and the plunger body. The spring member defines an annular chamber between the spring member and the plunger body in fluid communication with the downhole end of the plunger body and provides an outward force to the pads. In use, the openings and pressure chamber allow for a pressure differential across the pads.

Abstract: The invention relates to engineering geodesy for monitoring a height and deformation of a pipeline. The invention includes use of a complex of interrelated monitoring measures that include monitoring a control position of deformation control benchmarks using optic geodetic devices and mobile satellite geodetic receivers. A state geodetic network is used only at an initial stage for reference of the network sites to the local system of coordinates. Geodetic measurements are then converted to a local system of coordinates. The invention decreases an amount of time and labor for detection of the oil pipeline coordinates for operational needs and simplifies a planned high-altitude position data exchange, storage and transfer during measurement.

Abstract: A sleeve is provided with an upstream end a downstream end each fitted with inflatable bladders. Rigid rings are provided inboard of these inflatable bladders to keep the sleeve open when the bladders are expanded against a surface of a fluid transport line. The ends of the sleeve preferably include cuffs thereon with the rings residing within these cuffs. Spreader bars can be provided between the rings at the upstream and downstream ends of the sleeves, to keep the sleeve in an elongated form. Sleeve support trolleys can be provided for supporting the sleeve and resisting sagging thereof at points between ends of the sleeve. Portions of the rings and sleeve support trolley can be collapsible to facilitate placement through limited size entry ports into the fluid transport line. Flow thus continues through the sleeve while maintenance is done on portions of the fluid line adjacent to the sleeve.

Abstract: A pneumatic test gun for use in performing a leak test on a tube is provided. The pneumatic test gun has a handle for being manually gripped by an operator, a distal end portion for insertion into a tube to be tested, and a proximal end plate from which the distal end portion extends and which is adapted to be abutted against an open end of the tube to be tested. The distal end portion includes a support tube providing a flow path for compressed air into a tube to be tested, a longitudinally-compressible and radially-expandable annular seal located on the support tube, and a self-activating retaining element assembly adapted for radial-expansion into engagement with an inner diameter of the tube to be tested to improve retention of the distal end portion within the tube when the tube is pressurized during a leak test. A method is also provided.

Abstract: An apparatus for hydrostatic testing of openings in items surrounded by a flange, such as flanged pipe sections, flanged pipelines, flanged hose assemblies, as well as other flanged equipment requiring periodic pressure testing.

Abstract: A system (100) for testing is disclosed. The system (100) comprises a pipe joint having a male pipe section (102) and a female pipe section (104), a test port (106) disposed in a test space provided on the male pipe section (102) and a testing apparatus. The testing apparatus comprises a needle (112), a tubing (114) attached to the needle (112), a pressure supply assembly (116) attached to the tubing (114) in order to provide a predetermined air pressure while testing of the pipe joint and a ballast (118) adapted to support and hold the tubing (114) in order to provide necessary length of the tubing (114) to insert the needle (112) inside the test port (106). Further, the test port (106) is fixed into the interior diameter of the male pipe section (102) and is secured into the test space of the male pipe section (102) using a fastening means.

Abstract: A pneumatic test plug for clean-out tees and a method of testing a pipeline are disclosed. The pneumatic test plug includes a cap and a bladder. The cap has an inflation inlet and a testing fluid inlet. The testing fluid inlet provides a conduit for a testing fluid. The testing fluid may be a liquid or a gas. The bladder is in fluid connection with the inflation inlet. The bladder has an open end and a closed end. The open end receives air from the inflation inlet. The closed end is opposite the open end. The testing fluid inlet provides testing fluid through the cap and outside of the bladder. The inflation inlet provides a passageway to the bladder.

Abstract: A system (100) for testing a pipe joint comprises a pipe joint having a male pipe section (102) and a female pipe section (104), a test port (106) disposed in a test space provided on the male pipe section (102) and a testing apparatus comprising a needle (112), a tubing (114) and a pressure supply assembly (116). Further, the test space is a cavity provided in the male pipe section (102). Further, test port (106) connects an annular space (110) created at a junction of the male pipe section (102) and female pipe section (104) by providing gaskets (108). Further, the tubing (114) comprises a puck (805) adapted to extract the needle (112) from the test port (106).

Abstract: A wireless oxygen monitor for monitoring oxygen in a weld zone. The oxygen monitor receives weld zone gas samples and an oxygen sensor detects oxygen levels. A controller generates gas sample oxygen level data and wirelessly transmits gas sample data via an oxygen monitor wireless communication interface to a remote device that displays the gas sample data and logs it in a remote device storage.

Abstract: The present invention belongs to the field of display technology, in particular to inclining test equipment. The inclining test equipment comprises a workbench, and further comprises an abutment and an adjusting unit provided under the workbench, the adjusting unit being arranged between the abutment and the workbench, and being connected to the workbench and the abutment respectively, and the adjusting unit being configured to adjust the angle of inclination of the workbench relative to a plane of the abutment. The inclining test equipment has high test efficiency, high accuracy, and higher safety.

Abstract: A pipeline plug having a seal assembly and a slip assembly coupled to the seal assembly. The slip assembly moves from a retracted position to an expanded position when the seal assembly moves from a disengaged position to an engaged position. The slip assembly frictionally engages the internal wall of a pipe when in the expanded position. The force exerted on the pipeline plug by fluid within the pipe increases the force by which the slip assembly engages the internal wall of the pipe. The plug is removable from the pipe without damaging the plug by moving the seal assembly back to the disengaged position. A method of sealing a pipeline using the pipeline plug.

Abstract: A welding system using a purge plug for data acquisition. In one example, a purge plug includes purge plug component having a sealing structure. The sealing structure is configured to abut a surface of a hollow device and to form a seal between the sealing structure and the hollow device. The purge plug also includes a sensor at least partly disposed in the purge plug component, the sealing structure, or some combination thereof. The purge plug component is configured to be disposed on a workpiece having the hollow device to purge an undesired gas from the workpiece.

Abstract: A method and an apparatus for detecting breakage of piping, the method including the steps of: closing an outlet of heat exchanger tubes with an outlet-side shutoff valve; supplying high-temperature water into the heat exchanger tubes with a desalinated water pump; closing an inlet of the heat exchanger tubes with an inlet-side main shutoff valve and an inlet-side auxiliary shutoff valve with the heat exchanger tubes filled with the high-temperature water; and determining breakage of the heat exchanger tubes based on a change in the pressure of the high-temperature water in the heat exchanger tubes with the inlet and the outlet closed.

Abstract: A fluid-transferring expander, wherein a tube is disposed through a bladder structure, an expansion space is formed between the tube and the bladder structure, the tube is continuously extrudedly formed, the tube is formed with a first passage connected with a first fluid source and a second passage connected with a second fluid source and outside therein, and the tube is further formed with a through hole communicating with the expansion space and the first passage.

Abstract: The invention relates to an odor trap (31) for a transport conduit (10) with a division into a main branch (11) and a side branch (12). The odor trap comprises a mounting part (32) for releasable mounting in the side branch, and a membrane (33) of elastic material which comprises a first membrane part (33) to be received in the side branch (12) and a second membrane part (34) to be received in the main branch (11). The second membrane part (34) lies at an angle relative to the first membrane part (33). The membrane is at least partially movable under pressure of a fluid from a closing position, in which the membrane closes the passage of the main branch to the fluid, to a position allowing passage in which the membrane leaves clear the passage of the main branch for the fluid. The invention also relates to a system of a transport conduit (10) with a division into a main branch (11) and a side branch (12) and an odor trap (1) according to the invention.

Abstract: A blocked sewer unit includes a substantially impermeable barrier having a first side exposed to the interior of a sewage network and a second side, the barrier movable in the direction of the second side in response to fluid pressure on the first side. The blocked sewer alert unit includes a transducer separated by the barrier from the sewage network, the transducer configured to generate an electrical signal when the barrier moves into the dry section. The blocked sewer alert unit includes an alarm circuit configured to convert the electrical signal into a user alert.

Abstract: The cap for suspension of submersible pump with a pressure pipe and a cable with a cover with central axial hole and circular collar, with conical inner surface narrowing towards central hole, and clamping flange with central hole, sealing rubber ring of rubber cross-section installed between conical surface of collar of cover and flat side of flange. Bolts with nuts are installed in coaxial holes of cover for fixation of ring on the outer side of casing pipe of the well. Central hole of clamping flange has diameter smaller than mean diameter of rubber ring, while smaller diameter of conical surface of collar of cover is made with diameter exceeding mean diameter of rubber ring. Increased reliability and durability is provided by elimination of possibility of edge of the flange hole to cut into the rubber ring.

Abstract: A septic line cleaning assistance device that positions into alignment with a lower opening in a T-pipe to plug the lower opening in the T-pipe. The blocked lower opening enables a suction apparatus to suck waste from a pipe connected to a waste opening in the T-pipe through an upper opening in the T-pipe. A rod is configured to be inserted along the T-pipe and positioned into place along the T-pipe. The rod comprises a plug end holding the plug that is configured to frictionally engage the lower opening in the T-pipe to effectively seal the lower opening. A handle end having a grip enables the positioning of the plug over the lower opening, and pulling the plug into a mating position with the lower opening. An adjustable peripheral fastener is slidably positioned over the upper end of the T pipe to hold the device and plug in place.

Abstract: A test plug for insertion into and plugging of an open end of an elbow pipe is provided. The test plug includes a resilient sealing element and set of gripper segments carried on a shaft. The set of gripper segments are movable relative to the shaft between pipe-gripping and pipe-non-gripping positions such that, when the test plug is placed in sealing and gripping engagement relative to an inner diameter wall of an elbow pipe, the set of gripper segments are positioned in eccentric relation to at least one of the sealing element and the shaft.

Abstract: These fixtures aid in installing, sealing and securing pipe. Specifically, the invention aids in mating bell & spigot joints and securely capping open pipe ends of standard polyvinyl chloride (PVC), polyethylene (PE), and acrylonitrile-butadiene-styrene (ABS) pipe products as well as non-plastic piping by enabling equalized full circumference pressure on pipe ends to nudge, seal and/or secure pipe ends during installation or decommissioning.

Abstract: The isolation tool works at depth in the bore of a pipe whose upper end is to be severed and replaced. The tool isolates the lower pipe bore from the upper bore so that flammable downhole fluid is prevented from reaching a welding site along the pipe wall. The tool incorporates: means for establishing a pair of axially spaced apart annular seals engaging the pipe inner surface; means for venting downhole fluid to ground surface; and means for monitoring for seal leakage. The tool is primarily mechanical in nature. It finds use in connection with off-shore platform riser renewal operations.

Abstract: An end closure device (2) adapted to be used in connection with internal hydrostatic pressure testing of polymer tubes and comprising a mainly dome-shaped end cap (4) provided with sealing means for establishing a pressure-proof connection with opposite end parts of a sample (6) of the tube to be tested, an exterior ring-shaped part (14) of said dome-shaped end cap (4) being adapted to be connected with at least one or more squeezing parts (10) adapted to be assembled around said opposite end parts of said sample (6) of said tube to be tested, where said one or more squeezing parts (10) each being built-up of a number of piled up and interconnected plate elements (16) the configuration of each of which being provided by a cutting operation such as laser cutting or water cutting. By the concept of the present invention it becomes possible to vary both the internal configuration and the thickness of the piled-up plate members forming at least the squeezing parts of the end closure device.