DESC:FIELD OF THE INVENTION:

[0001] The present invention relates to a device for hydro testing of pipes without dummy welding at both ends of the pipes. More particularly, the invention relates to an equipment and arrangement to carry out the hydro testing in pipes by using concentric circular grooved discs to accommodate pipes of different length and diameter at both ends of the device and sealed using PTFE (Polytetrafluoroethylene) gland rope.

[0002] The present invention further relates to a device for hydro testing of elbows without dummy welding at both ends of the elbows. More particularly, the invention relates to an equipment and arrangement to carry out the hydro testing in elbows by using concentric circular grooved discs to accommodate elbows of different radii at both ends of the device and sealed using PTFE (Polytetrafluoroethylene) gland rope.

BACKGROUND OF THE INVENTION:

[0003] Background description includes information that may be useful in understanding the present invention. It is not an admission that any of the information provided herein is prior art or relevant to the presently claimed invention, or that any publication specifically or implicitly referenced is prior art.

[0004] The piping products require welded pipes & elbows which need hydro testing for conforming to approved quality plan to ensure quality of welding. The hydro testing is carried out by subjecting the weldments of pipes & elbow to test pressure.

[0005] In the conventional hydro testing method, the dummy plate is butt welded at both ends of the pipes/elbows. This process involved a longer cycle time, and it consumes excess pipe lengths that need to be kept after butt-welding of pipes for dummies welding, as well as cutting and edge preparation on both sides of the pipe. After the hydro test, the dummies must be cut on both sides, including the extra length of the pipe. This process takes more time and finally the pipe has to move to prepare the edge preparation once more for the desired dimensions. This leads to less productivity and more resource requirement for doing hydro test on straight pipes, branch pipes and elbows.

[0006] Thus, conventional method for hydro testing of pipes & elbows requires extra straight length of pipe at both ends of pipes and elbow, later which needs to be cut off thereby leads to wastage of material. Also, the dummy plates are welded at both ends and then cut off which consumes time and resources.

[0007] In order to overcome these issues, a new hydraulic device is developed using which pipes of different lengths, diameter & thickness as well as elbows of different angles, outer diameter and different bend radii can be hydro tested without dummy welding. The devices are designed differently for pipes and elbows.

OBJECTS OF THE INVENTION:

[0008] It is therefore an object of present invention to propose hydraulic operated hydro testing device with concentric circular grooved end discs for pipes & elbows.

[0009] Another object of the invention is to provide devices for hydro testing of pipes & elbows, which avoids welding of dummy plates at both ends of pipes and elbows while performing hydro testing and does not require re-chamfering (edge preparation).

[0010] One another object of present invention is to provide devices for hydro testing of pipes & elbows which eliminates the requirement of excess material.

[0011] Yet another object of present invention is to provide devices for hydro testing of pipes & elbows that reduces the human efforts and cycle time in the testing process.

[0012] Still another object of present invention is to provide devices for hydro testing of pipes & elbows that reduce the hydro testing process time and thereby save the machining cost and labour cost.

[0013] Still one another object of present invention is to propose the use of concentric circular grooved discs sealed with PTFE gland during the hydro test process, which enables the use of one dummy plate for different sizes of pipes.

[0014] These and other objects and advantages of the present invention will be apparent to those skilled in the art after a consideration of the following detailed description taken in conjunction with the accompanying drawings in which a preferred form of the present invention is illustrated.

[0015] At the outset of the description that follows, it is to be understood that the ensuing description only illustrates a particular form of this invention. However, such a particular form is only an exemplary embodiment and is not intended to be taken restrictively to imply any limitation on the scope of the present invention.

SUMMARY OF THE INVENTION:

[0016] One or more drawbacks of conventional systems and process are overcome, and additional advantages are provided through the apparatus/composition and a method as claimed in the present disclosure. Additional features and advantages are realized through the technicalities of the present disclosure. Other embodiments and aspects of the disclosure are described in detail herein and are considered to be part of the claimed disclosure.

[0017] According to the present invention, there is provided a device for hydro testing of pipes & elbows without welding of dummy plates at both ends of the pipes & elbows.

[0018] In an aspect, a device for performing the hydro testing of pipes is provided. The device comprises of a stand to support a base frame; a plurality of concentric circular grooved discs having glands to receive both ends of at least one pipe and hold them during hydro testing; a steering wheel to adjust the height of the concentric circular grooved disc to align with one of the ends of the pipe; a Non-Return Valve (NRV) cum water inlet line; a pressure gauge connected to the water inlet line; and a plurality of vertical plates attached to the base frame; wherein a hydraulic jack is mounted on at least one vertical plate, wherein the concentric circular grooved disc is equipped with the water inlet line and configured to be mounted on another vertical plate to receive the one end of the pipe, and wherein the concentric circular grooved disc is equipped with an adjustable air vent and configured to be mounted on a movable trolley to receive another end of the pipe.

[0019] In an aspect, water is filled inside the pipe from the concentric circular grooved disc through the water inlet line and the pressure gauge is used to check the pressure of the water inside the pipe during hydro testing.

[0020] In an aspect, the movable trolley comprises of a plurality of wheels; a counterweight placed at the trolley to balance the trolley during movement; a pusher assembly provided on the back side of the trolley; an adjustable air vent to accommodate the pipes of different diameter; an air outlet mounted on the pusher assembly having a pin valve; a mounting to support the steering wheel; and a lifting hook to move the concentric circular grooved disc up and down, to accommodate the pipe during hydro testing; wherein the air from the accommodated pipe is released through the air outlet after the pipe is filled with water and thereafter, the air vent is closed using the pin valve.

[0021] In another aspect, the hydraulic jack is connected to the movable trolley through the pusher assembly provided on the trolley, to support and hold the movable trolley during hydro testing.

[0022] In another aspect, the trolley is configured to move along with the base frame to accommodate and hold the pipes of different length and thickness.

[0023] In an embodiment, a device for performing hydro testing of elbows is provided. The device comprises of a plurality of vertical plates attached to a base frame; a plurality of concentric circular grooved discs having glands to receive both ends of at least one elbow and hold them during hydro testing; and a clamp provided at the centre of the device so as to lock the elbow with the device; wherein at least one hydraulic jack is mounted on at least one vertical plate and another hydraulic jack is mounted on another vertical plate, wherein the concentric circular grooved disc is equipped with a water inlet line and configured to receive the one end of the elbow, and wherein the concentric circular grooved disc is equipped with an air vent line and configured to receive another end of the elbow.

[0024] In an aspect, the hydraulic jacks are operated one at each end of the elbow respectively, to apply force tangentially on the elbow through the concentric circular grooved discs during hydro testing. In addition, the hydraulic jacks are configured to support and hold the concentric circular grooved discs during hydro testing

[0025] In an aspect, the device is configured to hold and test the elbows of different radii and different angles.

[0026] Various objects, features, aspects, and advantages of the inventive subject matter will become more apparent from the following detailed description of preferred embodiments, along with the accompanying drawing figures in which like numerals represent like components.

[0027] It is to be understood that the aspects and embodiments of the disclosure described above may be used in any combination with each other. Several of the aspects and embodiments may be combined to form a further embodiment of the disclosure.

[0028] The foregoing summary is illustrative only and is not intended to be in any way limiting. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features will become apparent by reference to the drawings and the following detailed description.

BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWING:

[0029] The foregoing and other features of the invention, comprising apparatus for conducting hydro testing using dummy grooved plates and hydraulic jacks together with the construction and relative arrangement of the several parts, will be apparent from the following more particular description of the invention, as illustrated in the accompanying drawings, in which like reference characters refer to the same parts throughout the different figures and subsequently incorporated in the subjoined claims.

[0030] The following description is intended only by way of example, and simply illustrates certain selected embodiments of devices, systems, and processes that are consistent with the subject matter as claimed herein. The drawings are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the invention and in which:-

[0031] Figure 1 illustrates the schematic drawing of a device with hydraulic jack used for hydro-testing of pipes according to the present invention.

[0032] Figure 2 illustrates the schematic drawing of trolley used in the device for hydro-testing of pipes in the present invention.

[0033] Figure 3a illustrates the schematic isometric drawing of frame of the trolley.

[0034] Figure 3b illustrates the schematic isometric drawing of trolley with steering mechanism used for hydro-testing of pipes of the present invention.

[0035] Figure 4 illustrates the cross-section view of the concentric circular grooved disc mounted on trolley.

[0036] Figure 5 illustrates the schematic isometric drawing of a device with two hydraulic jacks used for hydro-testing of elbows in accordance with the present invention.

[0037] The figures depict embodiments of the present subject matter for the purposes of illustration only. One skilled in the art will readily recognize from the following description that alternative embodiments of the structures and methods illustrated herein may be employed without departing from the principles of the disclosure described herein. Throughout the drawings and the detailed description, unless otherwise described, the same drawing reference numerals should be understood to refer to the same elements, features, and structures. The relative size and depiction of these elements may be exaggerated for clarity, illustration, and convenience.

DETAILED DESCRIPTION OF A PREFERRED EMBODIMENT OF THE PRESENT INVENTION WITH REFERENCE TO THE ACCOMPANYING DRAWING:

[0038] While the embodiments of the disclosure are subject to various modifications and alternative forms, specific embodiment thereof have been shown by way of example in the figures and will be described below. It should be understood, however, that it is not intended to limit the disclosure to the particular forms disclosed, but on the contrary, the disclosure is to cover all modifications, equivalents, and alternative falling within the scope of the disclosure.

[0039] As used in the description herein and throughout the claims that follow, the meaning of “a,” “an,” and “the” includes plural reference unless the context clearly dictates otherwise. Also, as used in the description herein, the meaning of “in” includes “in” and “on” unless the context clearly dictates otherwise.

[0040] Each of the appended claims defines a separate invention, which for infringement purposes is recognized as including equivalents to the various elements or limitations specified in the claims. Depending on the context, all references below to the "invention" may in some cases refer to certain specific embodiments only. In other cases, it will be recognized that references to the “invention" will refer to subject matter recited in one or more, but not necessarily all, of the claims.

[0041] Groupings of alternative elements or embodiments of the invention disclosed herein are not to be construed as limitations. Each group member can be referred to and claimed individually or in any combination with other members of the group or other elements found herein. One or more members of a group can be included in, or deleted from, a group for reasons of convenience and/or patentability. When any such inclusion or deletion occurs, the specification is herein deemed to contain the group as modified thus fulfilling the written description of all groups used in the appended claims.

[0042] Various embodiments are further described herein with reference to the accompanying figures. It should be noted that the description and figures relate to exemplary embodiments and should not be construed as a limitation to the subject matter of the present disclosure. It is also to be understood that various arrangements may be devised that, although not explicitly described or shown herein, embody the principles of the subject matter of the present disclosure. Moreover, all statements herein reciting principles, aspects, and embodiments of the subject matter of the present disclosure, as well as specific examples, are intended to encompass equivalents thereof. Yet further, for the sake of brevity, operation or working principles pertaining to the technical material that is known in the technical field of the present disclosure have not been described in detail so as not to unnecessarily obscure the present disclosure.

[0043] The terms “comprises”, “comprising”, or any other variations thereof used in the disclosure, are intended to cover a non-exclusive inclusion, such that a device, system, assembly that comprises a list of components does not include only those components but may include other components not expressly listed or inherent to such system, or assembly, or device. In other words, one or more elements in a system or device proceeded by “comprises… a” does not, without more constraints, preclude the existence of other elements or additional elements in the system or device.

[0044] The present subject matter discloses a device for hydro testing of pipes & elbows without welding dummy plates at both ends of pipes & elbows.

[0045] Figure 1 illustrates the schematic drawing of a device with hydraulic jack used for performing hydro-testing of pipes in accordance with an embodiment of the present invention. The device (100) for performing the hydro testing of pipes comprising of a base frame (1) on which the set-up of the complete fixture is fixed; a stand (11) to support and hold the base frame (1); at least one pipe (110) which have two ends (120, 120’) on which hydro testing is performed. The device comprises of a plurality of concentric circular grooved discs (4, 5) which have the Polytetrafluoroethylene (PTFE) glands in their grooves so that they may receive both the ends (120, 120’) of the pipe (110) freely and hold them firmly during hydro testing; a steering wheel (7) which is used to adjust the height of the concentric circular grooved disc (5) so as to align with one of the ends of the pipe (110); a movable trolley (3); a hydraulic jack (2); a Non-Return Valve (NRV) cum water inlet line (9) to supply the water inside the pipe (110); a pressure gauge (10) connected to the water inlet line (9); and a plurality of vertical plates (20, 20’) which are attached vertically to the base frame (1).

[0046] The device (100) for doing hydro testing of pipes in which the hydraulic jack (2) is mounted on the at least one vertical plate (20’). The concentric circular grooved disc (4) is equipped with the water inlet line (9) and is configured to be mounted on another vertical plate (20) to receive the one end (120) of the pipe (110). The concentric circular grooved disc (5) is equipped with an adjustable air vent (6), i.e., air breather, and configured to be mounted on the movable trolley (3) to receive another end (120’) of the pipe (110).

[0047] As shown in figure 1, an air breather outlet (12) is provided on the trolley mechanism. The reaction load absorbing tubes (8) is provided in the device to absorb the heavy load of the pipes filled with water during the hydro testing process. The water is filled inside the pipe (110) from the concentric circular grooved disc (4) through the water inlet line (9). Further, the pressure gauge (10) is used to check the pressure of the water inside the pipe (110) during hydro testing. If very high pressure is reached inside the pipe (110) than the prescribed limit, then the excess of pressure can be released from the pipe with the help of the pressure relief valve. The steering wheel (7) may be operated manually.

[0048] Figure 2 illustrates the schematic drawing of trolley mechanism used in the device for hydro-testing of pipes, according to the present invention. The device (100) for performing the hydro testing of pipes uses the movable trolley (3) to accommodate the pipes of different length. The movable trolley (3) comprises of a plurality of stepped wheels (14) with plumber block and shaft; a counterweight (13) placed at the trolley (3) to balance the trolley during movement; a pusher assembly (15) provided on the back side of the trolley (3); an adjustable air vent (6) to accommodate the pipes (110) of different diameter; an air breather outlet (12) mounted on the pusher assembly (15) and having a pin valve (16).

[0049] The trolley (3) further comprises of a mounting (18) to support the steering wheel (7); and a lifting hook (19) to move the concentric circular grooved disc (5) up and down so as to accommodate the pipe (110) during hydro testing, as shown in figure 3b, which illustrates the schematic isometric drawing of trolley with steering mechanism used for hydro-testing of pipes. Now, the air from the accommodated pipe (110) is released through the air breather outlet (12) after the pipe (110) is filled with water and thereafter, the air vent (6) is closed using the pin valve (16).

[0050] In an embodiment, the device (100) for performing the hydro-testing of pipes is comprises of a trolley frame, as shown in figure 3a which illustrates isometric drawing of the frame of the trolley. The hydraulic jack (2) is connected to the movable trolley (3) through the pusher assembly (15) provided on the trolley (3), to support and hold the movable trolley (3) during hydro testing. The trolley (3) is further configured to be move along with the base frame (1) to accommodate and hold the pipes (110) of different length and thickness.

[0051] Figure 4 illustrates the cross-section view of the concentric circular grooved disc (5) mounted on the trolley (3), as per an embodiment of the present invention. The adjustable air breather (6) as provided on the movable trolley (3) is used to accommodate the pipes (110) having different diameter. The pusher assembly (15) as provided on the back side of the movable trolley (3) having an air breather outlet (12) mounted on it which have a pin valve (16). The trolley (3) is having a lifting eye (17) which may be lifted by the lifting hook (19) to move the concentric circular grooved disc (5) up and down so as to accommodate the pipe (110) during hydro testing. The air from the accommodated pipe (110) is released through the air breather outlet (12) after the pipe (110) is filled with water and thereafter, the air breather (6) is closed using the pin valve (16), so that the hydro testing could be easily performed on the accommodated pipe.

[0052] Figure 5 illustrates the schematic isometric drawing of a device with two hydraulic jacks used for performing hydro-testing of elbows. The device (200) for performing the hydro testing of elbows comprising of a base frame (202); a plurality of vertical plates (204, 204’) attached vertically to the base frame (202); at least one elbow (210) which have the two ends (220, 220’); a plurality of concentric circular grooved discs (206, 208) having Polytetrafluoroethylene (PTFE) glands so as to receive both the ends (220, 220’) of the elbow (210) freely and hold them firmly during hydro testing; a plurality of hydraulic jacks (212, 212’); a clamp (214) is also provided at the centre of the device so as to lock the elbow (210) with the device; a water inlet line; and an air vent line. At least one hydraulic jack (212) is mounted on at least one vertical plate (204) and another hydraulic jack (212’) is mounted on another vertical plate (204’), wherein the concentric circular grooved disc (206) is equipped with the water inlet line and configured to receive the one end (220) of the elbow (210), and the concentric circular grooved disc (208) is equipped with the air vent line and configured to receive another end (220’) of the elbow (210).

[0053] The hydraulic jacks (212, 212’) used in the for performing hydro testing of elbows, are operated at each end (220, 220’) of the elbow (210) respectively, in order to apply force tangentially on the elbow (210) through the concentric circular grooved discs (206, 208) during hydro testing. The hydraulic jacks (212, 212’) are further configured to support and firmly hold the concentric circular grooved discs (206, 208) during hydro testing. The device (200) is configured to hold and test the elbows (210) of different radii and having 90o degree angles. Elbows of less than 90o degree angles can be accommodated in this device by using suitable angular spool pieces between hydraulic jacks (212, 212’) and concentric circular grooved discs (206, 208) at each end.

[0054] According to the present invention, a device cum fixture is developed to carry out hydro test of pipes without dummy welding. Two concentric circular grooved discs are used to close both the ends of pipe while performing the hydro testing. The discs have circular grooves inside which Polytetrafluoroethylene PTFE glands are placed. The circular groove is made such that the pipe being hydro tested gets easily inserted in the discs. One disc is fixed at one end of the fixture through which water is filled from filling line of pump. The second disc is equipped with an air vent line and is placed on a movable trolley between hydraulic jack and pipe. The hydraulic jack is operated to push the discs firmly against both ends of pipe. The hydraulic jack is used in the fixture to support and hold the concentric grooved discs during hydro testing of pipes.

[0055] Thus, the present invention proposes a device/fixture to hold pipes of various lengths, diameter and thickness. This invention uses grooved dummy flanges. The size (Nominal Diameter & Thickness) of the groove is such that the pipe gets freely inserted inside dummy grooved disc. The disc at one end of pipe has provision to fill water during hydro testing. The disc at other end of pipe has an air vent. The fixture has a base frame and two welded vertical plates. Hydraulic jack is mounted on one vertical plate at one end as shown in figures. Disc through which water is filled is mounted on another vertical plate at other end of the device. Hydro test is carried out by filling water through the provision given in the disc equipped with water inlet line. After filling the water in the pipe and confirming that no air is trapped inside pipe, the air vent in other dummy plate is closed by a valve. Water is pressurised to do required hydro test pressure and hydro test is completed.

[0056] Further, another device cum fixture is developed to carry out the hydro testing of elbows without dummy welding. Two concentric circular grooved discs are used to close both ends of the elbow while performing hydro testing. The discs have circular grooves inside which Polytetrafluoroethylene PTFE glands are placed. The circular groove is made such that the elbow being hydro tested gets inserted easily in the discs. One disc is fixed at one end of the device through which water is filled from filling line of pump. The second disc is fixed on other end of elbow and is equipped with an air vent line. Two hydraulic jacks are operated, one at each end of elbow to push the discs firmly against both ends of elbow. Water is filled inside elbow for conducting hydro-test and pressure is increased gradually till required test pressure is reached. The pressure in hydraulic jack is also increased steadily to avoid water leakage. The hydro test is carried out at required test pressure for required time. Two hydraulic jacks are used in the fixture to support and hold the concentric grooved discs hydro testing of elbows.

[0057] Thus, this invention involves a device/fixture to hold elbows of different angles and of different radii. This invention uses grooved dummy flanges. The size (Nominal Diameter & Thickness) of the groove is such that the elbow gets freely inserted inside the discs. The disc at one end of elbow has provision to fill water during hydro test. The disc at another end of elbow has an air vent. The device has a base frame and two welded vertical plates. Hydraulic jacks are mounted on these vertical plates as shown in figure 5. Hydraulic jacks are used to apply the force tangentially on the elbow through discs. To ensure that the elbow is safely locked in fixture, a clamp is provided in the fixture to hold the elbow at centre. Hydro test is carried out by filling the water through the provision given in one disc. After filling up the water, the air vent in another disc is closed by a valve. Water is pressurised to do required hydro test pressure and hydro test is completed.

Advantages of Invention

[0058] Additionally, the device for performing the hydro-testing of pipes and elbows is having the following advantages:

• It avoids extra machining works,
• It eliminates the requirement of excess material, thus avoids the wastage of extra pipe length & consumables,
• It eliminates dummy preparation works like welding and cutting,
• It reduces the human effort and cycle time in the testing process,
• To save the machining cost and labour cost,
• To reduce the hydro testing process time,
• To increase productivity, and
• It enhances the overall efficiency of the testing process.

WORKING OF THE INVENTION

[0059] The present invention proposes a device for performing the hydro testing of pipes without dummy welding. Two concentric circular grooved discs are used to close both the ends of pipe while performing the hydro testing. The discs have circular grooves inside which PTFE glands are placed. Hydro test is carried out by filling water in the pipe through the provision given in the disc equipped with water inlet line. After filling the water in the pipe and confirming that no air is trapped inside pipe, the air vent in other dummy plate is closed by a valve. Water is pressurised gradually till required test pressure is reached. The pressure in hydraulic jack is also increased steadily to avoid water leakage. The hydro test is carried out at required test pressure for required time.

[0060] The present invention further proposes a device for performing the hydro testing of elbows without dummy welding. Two concentric circular grooved discs are used to close both ends of the elbow while performing hydro testing. The discs have circular grooves inside which PTFE glands are placed. Hydro test is carried out by filling water in the elbow through the provision given in the disc equipped with water inlet line. After filling the water in the elbow, the air vent in other dummy plate is closed by a valve. Water is pressurised gradually till required test pressure is reached. The pressure in hydraulic jack is also increased steadily to avoid water leakage. The hydro test is carried out at required test pressure for required time.

TEST RESULT

[0061] After doing many trials, a unique hydro testing device/fixture for arresting the pipe and sealing the end openings with PTFE gland fixed inside grooved flange is developed. This flanged sealing setup has been tested for working up to 120 Kg/cm2 pressure in straight pipe of outer diameter, OD 219 mm and thickness 12 mm. This was done to reduce cycle time of hydro testing operation at BHEL. The hydraulic force during hydro-test is directly proportional to hydro test pressure and area of pipe (calculated with ID of pipe). Based on the force, the hydraulic jack(s) of suitable capacity may be selected.

[0062] Therefore, it may be significant that when applied in industrial manufacturing settings, the present invention significantly enhances the efficiency, and quality control and reduces the cost and human efforts in performing the hydro testing for pipes and elbows. It further eliminates unnecessary steps, material wastage, and simplifies the overall testing process.

[0063] Each of the appended claims defines a separate invention, which for infringement purposes is recognized as including equivalents to the various elements or limitations specified in the claims. Depending on the context, all references below to the "invention" may in some cases refer to certain specific embodiments only. In other cases, it will be recognized that references to the "invention" will refer to subject matter recited in one or more, but not necessarily all, of the claims.

[0064] Groupings of alternative elements or embodiments of the invention disclosed herein are not to be construed as limitations. Each group member can be referred to and claimed individually or in any combination with other members of the group or other elements found herein. One or more members of a group can be included in, or deleted from, a group for reasons of convenience and/or patentability. When any such inclusion or deletion occurs, the specification is herein deemed to contain the group as modified thus fulfilling the written description of all groups used in the appended claims.

[0065] It will be understood by those within the art that, in general, terms used herein, and especially in the appended claims (e.g., bodies of the appended claims) are generally intended as “open” terms (e.g., the term “including” should be interpreted as “including but not limited to,” the term “having” should be interpreted as “having at least,” the term “includes” should be interpreted as “includes but is not limited to,” etc.). It will be further understood by those within the art that if a specific number of an introduced claim recitation is intended, such an intent will be explicitly recited in the claim, and in the absence of such recitation no such intent is present. For example, as an aid to understanding, the following appended claims may contain usage of the introductory phrases “at least one” and “one or more” to introduce claim recitations. However, the use of such phrases should not be construed to imply that the introduction of a claim recitation by the indefinite articles “a” or “an” limits any particulars claim containing such introduced claim recitation to inventions containing only one such recitation, even when the same claim includes the introductory phrases “one or more” or “at least one” and indefinite articles such as “a” or “an” (e.g., “a” and/or “an” should typically be interpreted to mean “at least one” or “one or more”); the same holds true for the use of definite articles used to introduce claim recitations. In addition, even if a specific number of an introduced claim recitation is explicitly recited, those skilled in the art will recognize that such recitation should typically be interpreted to mean at least the recited number (e.g., the bare recitation of “two recitations,” without other modifiers, typically means at least two recitations, or two or more recitations). Furthermore, in those instances where a convention analogues to “at least one of A, B and C, etc.” is used, in general such a construction is intended in the sense one having skill in the art would understand the convention (e.g., “a system having at least one of A, B and C” would include but not be limited to systems that have A alone, B alone, C alone, A and B together, A and C together, B and C together, and/or A, B, and C together, etc.). In those instances where a convention analogous to “at least one of A, B, or C, etc.” is used, in general such a construction is intended in the sense one having skill in the art would understand the convention (e.g., “a system having at least one of A, B, or C” would include but not be limited to systems that have A alone, B alone, C alone, A and B together, A and C together, B and C together, and/or A, B, and C together, etc.). It will be further understood by those within the art that virtually any disjunctive word and/or phrase presenting two or more alternative terms, whether in the description, claims, or drawings, should be understood to contemplate the possibilities of including one of the terms, either of the terms, or both terms. For example, the phrase “A or B” will be understood to include the possibilities of “A” or “B” or “A and B”.

[0066] The above description does not provide specific details of manufacture or design of the various components. Those of skill in the art are familiar with such details, and unless departures from those techniques are set out, techniques, known, related art or later developed designs and materials should be employed. Those in the art are capable of choosing suitable manufacturing and design details.

[0067] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present disclosure. It will be appreciated that several of the above-disclosed and other features and functions, or alternatives thereof, may be combined into other systems or applications. Various presently unforeseen or unanticipated alternatives, modifications, variations, or improvements therein may subsequently be made by those skilled in the art without departing from the scope of the present disclosure as encompassed by the following claims.

[0068] The claims, as originally presented and as they may be amended, encompass variations, alternatives, modifications, improvements, equivalents, and substantial equivalents of the embodiments and teachings disclosed herein, including those that are presently unforeseen or unappreciated, and that, for example, may arise from applicants/patentees and others.

[0069] While various aspects and embodiments have been disclosed herein, other aspects and embodiments will be apparent to those skilled in the art. The various aspects and embodiments disclosed herein are for purposes of illustration and are not intended to be limiting, with the true scope and spirit being indicated by the following claims.
,CLAIMS:We Claim:

1. A device (100) for performing hydro testing of pipes, the device (100) comprising:
- a stand (11) to support a base frame (1);
- a plurality of concentric circular grooved discs (4, 5) having glands to receive both ends (120, 120’) of at least one pipe (110) and hold them during hydro testing;
- a steering wheel (7) to adjust the height of the concentric circular grooved disc (5) to align with one of the ends of the pipe (110);
- a Non-Return Valve (NRV) cum water inlet line (9);
- a pressure gauge (10) connected to the water inlet line (9); and
- a plurality of vertical plates (20, 20’) attached to the base frame (1);
wherein a hydraulic jack (2) is mounted on at least one vertical plate (20’),
wherein the concentric circular grooved disc (4) is equipped with the water inlet line (9) and configured to be mounted on another vertical plate (20) to receive the one end (120) of the pipe (110), and
wherein the concentric circular grooved disc (5) is equipped with an adjustable air vent (6) and configured to be mounted on a movable trolley (3) to receive another end (120’) of the pipe (110).

2. The device (100) for performing hydro testing of pipes as claimed in claim 1, wherein water is filled inside the pipe (110) from the concentric circular grooved disc (4) through the water inlet line (9).

3. The device (100) for performing hydro testing of pipes as claimed in claim 1, wherein the pressure gauge (10) is used to check the pressure of the water inside the pipe (110) during hydro testing.

4. The device (100) for performing hydro testing of pipes as claimed in claim 1 or 2, wherein the movable trolley (3) comprises:
- a plurality of wheels (14);
- a counterweight (13) placed at the trolley (3) to balance the trolley during movement;
- a pusher assembly (15) provided on the back side of the trolley (3);
- an adjustable air vent (6) to accommodate the pipes (110) of different diameter;
- an air outlet (12) mounted on the pusher assembly (15) having a pin valve (16);
- a mounting (18) to support the steering wheel (7); and
- a lifting hook (19) to move the concentric circular grooved disc (5) up and down, to accommodate the pipe (110) during hydro testing;
wherein the air from the accommodated pipe (110) is released through the air outlet (12) after the pipe (110) is filled with water and thereafter, the air vent (6) is closed using the pin valve (16).

5. The device (100) for performing hydro testing of pipes as claimed in claim 1 or 4, wherein the hydraulic jack (2) is connected to the movable trolley (3) through the pusher assembly (15) provided on the trolley (3), to support and hold the movable trolley (3) during hydro testing.

6. The device (100) for performing hydro testing of pipes as claimed in claim 1 or 4, wherein the trolley (3) is configured to move along with the base frame (1) to accommodate and hold the pipes (110) of different length and thickness.

7. A device (200) for performing hydro testing of elbows, the device (200) comprising:
- a plurality of vertical plates (204, 204’) attached to a base frame (202);
- a plurality of concentric circular grooved discs (206, 208) having glands to receive both ends (220, 220’) of at least one elbow (210) and hold them during hydro testing; and
- a clamp (214) provided at the centre of the device so as to lock the elbow (210) with the device;
wherein at least one hydraulic jack (212) is mounted on at least one vertical plate (204) and another hydraulic jack (212’) is mounted on another vertical plate (204’),
wherein the concentric circular grooved disc (206) is equipped with a water inlet line and configured to receive the one end (220) of the elbow (210), and
wherein the concentric circular grooved disc (208) is equipped with an air vent line and configured to receive another end (220’) of the elbow (210).

8. The device (200) for performing hydro testing of elbows as claimed in claim 7, wherein the hydraulic jacks (212, 212’) are operated one at each end (220, 220’) of the elbow (210) respectively, to apply force tangentially on the elbow (210) through the concentric circular grooved discs (206, 208) during hydro testing.

9. The device (200) for performing hydro testing of elbows as claimed in claim 7 or 8, wherein the hydraulic jacks (212, 212’) are configured to support and hold the concentric circular grooved discs (206, 208) during hydro testing.

10. The device (200) for performing hydro testing of elbows as claimed in claim 7 to 9, wherein the device (200) is configured to hold and test the elbows (210) of different radii and different angles.