DESC:FORM 2
THE PATENTS ACT, 1970
(39 of 1970)
As amended by the Patents (Amendment) Act, 2005
&
The Patents Rules, 2003
As amended by the Patents (Amendment) Rules, 2016

COMPLETE SPECIFICATION
(See Section 10 and Rule 13)
TITLE
“DESIGN AND DEVELOPMENT OF HYDRO PRESSURE TESTING MACHINE”
APPLICANT
(a) Name : Mishra Dhatu Nigam Limited
(b) Nationality : Indian
(c) Address : PO Kanchanbagh, Hyderabad, Telangana – 500058, India

The following specification particularly describes the application and the manner in which it is to be performed.
PRIORITY STATEMENT
The present application hereby claims priority from Indian patent application with the application number 202341024887, filed on 31 March 2023, the entire contents of which are incorporated herein by reference.

TECHNICAL FIELD OF INVENTION
The present invention relates to a determining the quality of water tightness of a pipe or tubes, and more particularly, it relates to an apparatus designed to test hydro pressure a newly manufactured tubes thereby ensuring its workability in critical operations.

BACKGROUND OF INVENTION
Hydrostatic testing provides a method of finding leaks and flaws in vessels used for pipelines, refineries, chemical plants, oil and gas drilling and production, plumbing, or other operations, and to determine whether a particular installation is suitable and safe for use with the working pressure to which it will be exposed. Newly manufactured sections of pipe are initially qualified using hydrostatic pipe testing. Used pipe may also undergo hydrostatic pipe testing.
For open-ended pipe, conventional pipe testing is conducted by sealing the ends of the pipe with flanges. These flanges are attached to the outer edge of the pipe generally by welding. The pipe is then filled with a nearly incompressible liquid (usually water or oil) and examined for leaks or permanent changes in shape. The test is usually performed at 1.5 times the working pressure to which the section of pipe will be exposed.
The attachment of flanges to the end of the sections of pipe requires a significant amount of time and expense. They will also need to be removed following the test in open-ended or modular systems.
Temporary external pipe end plugs are known. For example, United Kingdom Patent No. 2448036B, issued on Oct. 21, 2009, describes an external pipe end plug that hydraulically seals to the open end of pipe. United Kingdom Patent No. 2448036B is incorporated herein by reference.
Conventional hydro-testing equipment and practices are typically low-tech, require a long set-up, testing time, and disassembly, and suffer from numerous safety concerns. Because the pipe is placed under high pressure, the chance of injury exists due to failure of the pipe plugs or the pipe itself, particularly if personnel are present near the pipe and if insufficient care is taken.
There is a need for an apparatus which is efficient, economic as well as easy to operate. Accordingly, based on necessity a safe hydro-testing apparatus for open-ended tubes was designed and developed which can be easily operated by laborer once provided with the necessary information.

OBJECT OF THE INVENTION
The object of present invention is to disclose a hydro pressure testing apparatus that is easy to attach to tube and is able to detect tube which shall be able withstand 200 bar pressure during its testing.

SUMMARY OF THE INVENTION
This summary is provided to introduce a selection of concepts, in a simplified format, that are further described in the detailed description of the disclosure. This summary is neither intended to identify key or essential inventive concepts of the disclosure nor is it intended for determining the scope of the disclosure.
A hydro pressure testing apparatus for testing tubes ability to withstand 200 bar pressure during its test comprising of a plurality of big supporting frames (10), small supporting frames (12), a rectangular supporting structure (14), a horizontal rod (16), connecting valve (18), platform (20) with a circular groove (22), wherein said circular groove (22) is configured to accommodate a tube to be tested, wherein the upper end of the big supporting frame (10) forms a platform (24) housing a valve (26) for axial movement to seal the tube vertically, wherein said apparatus includes a pair of tube attachment means mounted on said supporting frames (10) and (12), said tube attachment means comprising rotatably threaded valves (18) and (26) adapted to engage threads on the ends of the pipe to be tested, said valves having passages communicating with the passage inside the pipe when attached, further comprising a pump and a pressure gauge to apply and measure pressure within the pipe during testing, respectively, wherein one of said valves is axially movable relative to the pipe and the other valve is horizontally movable relative to the pipe, wherein loading rails are provided to move the pipe to an operative position, and a pipe elevator is provided to lower the pipe to a position where it will be engaged by the tube attachment means.

BRIEF DESCRIPTION OF THE DRAWINGS
These and other features, aspects, and advantages of the present disclosure will become better understood when the following detailed description is read with reference to the accompanying drawings in which like characters represent like parts throughout the drawings, wherein:
Fig. 1 illustrates a perspective view of the present invention according to an embodiment of the present invention.
Further, skilled artisans will appreciate that elements in the drawings are illustrated for simplicity and may not have necessarily been drawn to scale. For example, the flow charts illustrate the method in terms of the most prominent steps involved to help to improve understanding of aspects of the present disclosure. Furthermore, in terms of the construction of the device, one or more components of the device may have been represented in the drawings by conventional symbols, and the drawings may show only those specific details that are pertinent to understanding the embodiment of the present disclosure so as not to obscure the drawings with details that will be readily apparent to those of ordinary skill in the art having the benefit of the description herein.

DETAILED DESCRIPTION OF THE INVENTION

For the purpose of promoting an understanding of the principles of the present disclosure, reference will now be made to the various embodiments and specific language will be used to describe the same. It will nevertheless be understood that no limitation of the scope of the present disclosure is thereby intended, such alterations and further modifications in the illustrated system, and such further applications of the principles of the present disclosure as illustrated therein being contemplated as would normally occur to one skilled in the art to which the present disclosure relates.
It will be understood by those skilled in the art that the foregoing general description and the following detailed description are explanatory of the present disclosure and are not intended to be restrictive thereof.
The present invention aims to overcome the limitations of prior art by providing a hydro pressure testing apparatus that is easy to attach to pipes and maintain 200 bar pressure during testing. In the present disclosure, the terms "tube" and "pipe" are sometimes used interchangeably.
Inventive Feature of the present invention
In an embodiment of the present disclosure, a hydro pressure testing apparatus is disclosed. Hereinafter, a hydro pressure testing apparatus according to an embodiment of the present disclosure will be described with reference to Figure 1. As illustrated in Figure 1, a Hydro pressure Testing Apparatus (100) consists of plurality of big supporting frames (10), small supporting frames (12), rectangular supporting structure (14), Horizontal rod (16), connecting valve (18), platform (20) with a circular groove (22). The circular groove (22) is adapted to accommodate the tube to be tested. The upper end of the big supporting frame (10) is configured to form a platform 24. The platform (24) houses a valve (26) for axial movement resulting the tube to be tested be sealed in a vertical direction.
Referring to Fig.1, the supporting frames (10) and (12) house a rectangular supporting structure (14), to which there is mounted a pair of platform (20) and (24) with tube attachment means (22) which include rotatably threaded valves (18) and (26) adapted to engage threads on the ends of the pipe to be tested, and which have passages which communicate with the passage inside the tube to be tested when they are attached.
In accordance with an embodiment of the present invention, wherein the pipe attachment means includes a pair of valves (18) and (26), wherein one of the valve valve (18) is horizontally movable relative to the tube and another valve (26) is axially movable relative to the tube, whereby the pipe attachment means can be brought toward the tube to be threaded to it, and one end of the pipe can be used for purpose of filling the pipe. A connection is provided for filling the pipe with liquid.
In accordance with an embodiment of the present invention, the machine also includes a pressure gauge and a pump to apply pressure to the interior of the pipe. The pressure gauge measures the pressure inside the pipe during testing, and the pump is used to adjust the pressure as needed. The machine is designed to handle high pressure upto 200 bars.
In accordance with an embodiment of the present invention, loading rails are provided to move the pipe to an operative position via valve (18), and a valve (26) enables lowering of the pipe to a position where it will be engaged by the pipe attachment means.
The hydro pressure testing apparatus, as disclosed, comprises the following features:
• Pipe Attachment Means: Mounted on a frame, featuring rotatably threaded plugs to engage threads on pipe ends, with passages communicating internally with the pipe.
• Axial and Horizontal Movement: One plug is axially movable relative to the pipe, and one is horizontally movable, allowing the attachment means to approach the pipe and use one end for filling purposes.
• Liquid Filling Connection: Includes a connection for filling the pipe with liquid.
• Pressure Gauge and Pump: Equipped with a pressure gauge to measure internal pressure during testing and a pump to adjust pressure as required, suitable for high-pressure conditions and various pipe sizes.
• Loading Rails and Pipe Elevator: Incorporates loading rails to position the pipe and a pipe elevator to engage the pipe attachment means.

ADVANTAGES AND APPLICATION
The present invention is used to test the strength and integrity of various types of pipes that are designed to contain fluids under pressure. Some advantages of the present invention include enhanced safety by identifying any potential leaks, cracks or weaknesses in the system before it is put into use, Cost-effective by identifying any issues before the equipment is put into use, providing accurate and reliable test results.
,CLAIMS:CLAIMS

We claim

1. A hydro pressure testing apparatus for testing tubes ability to withstand 200 bar pressure during its test comprising of:
a. a plurality of big supporting frames (10),
b. small supporting frames (12),
c. a rectangular supporting structure (14),
d. a horizontal rod (16),
e. connecting valve (18),
f. platform (20) with a circular groove (22),
i. wherein said circular groove (22) is configured to accommodate a tube to be tested,
ii. wherein the upper end of the big supporting frame (10) forms a platform (24) housing a valve (26) for axial movement to seal the tube vertically,
iii. wherein said apparatus includes a pair of tube attachment means mounted on said supporting frames (10) and (12), said tube attachment means comprising rotatably threaded valves (18) and (26) adapted to engage threads on the ends of the pipe to be tested, said valves having passages communicating with the passage inside the pipe when attached,
iv. further comprising a pump and a pressure gauge to apply and measure pressure within the pipe during testing, respectively,
v. wherein one of said valves is axially movable relative to the pipe and the other valve is horizontally movable relative to the pipe,
vi. wherein loading rails are provided to move the pipe to an operative position, and a pipe elevator is provided to lower the pipe to a position where it will be engaged by the tube attachment means.
2. The hydro pressure testing apparatus as claimed in claim 1, wherein said circular groove (22) is designed to securely hold the tube during testing, preventing slippage or movement.
3. The hydro pressure testing apparatus as claimed in claim 1, wherein said pump is operable to adjust pressure within the pipe as required during testing, ranging up to 200 bar.
4. The hydro pressure testing apparatus as claimed in claim 1, wherein said pair of tube attachment means further comprises a connection for filling the pipe with liquid.
5. The hydro pressure testing apparatus as claimed in claim 1, wherein said big supporting frames (10) and small supporting frames (12) are constructed from materials capable of withstanding high-pressure conditions.