JP4344206B2 - Temporary connection pipe - Google Patents

Description

  The present invention provides a temporary connection that is temporarily installed in place of a meter installed between the main pipe outlet of various existing and new pipes for supplying a liquid such as tap water or a gas such as propane gas and the indoor pipe inlet. Regarding the tube.

Conventionally, when constructing houses and buildings such as condominiums, various buildings, etc., main outlets for existing and new pipes that supply liquids such as tap water and gases such as propane gas, and buildings under construction Construction work is performed between the indoor piping inlets of objects and the like with the respective ends open until a meter is attached.
However, if the main outlet and the indoor pipe inlet are not connected and open, dirt such as soil, sand, and leaves will enter the opening, and the pipe is cleaned after the pipe is finished. There is a problem that it takes a long time for the work and also requires man-hours for the waste water treatment after the cleaning. Further, there is a problem that the installation of the meter becomes difficult because the movement, inclination, deformation, etc. of the indoor pipe occur during construction work, and the interval between the main pipe outlet and the indoor pipe inlet is shifted.
In order to solve these problems, (Patent Document 1) discloses a “strainer temporarily connected to a location where a water usage meter of an indoor water branch pipe connected to a main pipe is attached”. .
Japanese Patent Publication No. 3-38882

However, the above conventional techniques have the following problems.
(1) In (Patent Document 1), a strainer body sealed with a cap is provided with a water inlet and a water outlet, and the span between the water inlet end and the water outlet end is the dimension within the connection span of the water consumption meter. It is possible to attach a water usage meter after the piping is finished by preventing the displacement between the main outlet and the indoor piping inlet, but the main outlet and the indoor piping inlet are directly connected. Therefore, it had the subject of being stolen.
(2) (Patent Document 1) is provided with a screw hole for attaching a pressure gauge and drain valve to the strainer body, so test water is supplied from a test pump to supply water pressure to indoor piping. However, since the main pipe outlet and the indoor pipe inlet are directly connected, there is a problem that the test water flows back to the main pipe.

  The present invention solves the above-described conventional problems, and is temporarily installed between the main pipe outlet of various existing and new pipes for supplying a liquid such as tap water and a gas such as propane gas, and the indoor pipe inlet. Therefore, the positioning of the main outlet and the indoor piping inlet can be ensured, the meter can be easily mounted after the work is completed, and the workability is excellent, and the main outlet and the indoor piping inlet are in direct communication. By preventing the water from being stolen, the test liquid or gas can be supplied only to the indoor piping, and inspections such as water leaks and gas leaks and pressure tests can be easily performed, providing excellent reliability. An object of the present invention is to provide a temporary connecting pipe that can discharge liquid and gas for testing reliably, has excellent maintainability, and is excellent in resource saving that can be collected and used repeatedly after the meter is mounted.

In order to solve the above problems, the temporary connecting pipe of the present invention has the following configuration.
The temporary connection pipe according to claim 1 of the present invention is attached between the main pipe outlet of various existing and new pipes for supplying a liquid such as tap water or a gas such as propane gas, and the indoor pipe inlet. A temporary connection pipe temporarily installed in place of the meter, and formed at the pipe side opening at both ends respectively connected to the main pipe outlet and the indoor pipe inlet, and at the pipe opening at both ends. A pipe connection threaded portion, and an external side opening that communicates with the pipe side openings at both ends and opens to the outside.

This configuration has the following effects.
(1) Since it has screw connection parts for pipe connection at both ends connected to the main pipe outlet part and the indoor pipe inlet part, it can be easily connected to the main outlet part and the indoor pipe inlet part for reliable positioning. The meter can be easily removed after the construction of the building or the like is completed, and the meter can be collected and used repeatedly after the meter is attached.
(2) Since the pipe-side openings at both ends communicate with the external openings that are open to the outside, liquid and gas are supplied directly from the main pipe outlet to the indoor pipe inlet during temporary installation of the temporary connection pipe. In particular, when it is connected to a water pipe, theft can be prevented.
(3) A liquid for testing from the external opening connected to the piping connection opening connected to the indoor piping inlet to the indoor piping by having the external opening connected to the piping opening at both ends. Or gas can be supplied to perform a leak test or pressure test on indoor piping, and after the test, the test liquid or gas can be reliably discharged without flowing back to the main pipe.
(4) Since it has an external opening that communicates with the main outlet and the indoor piping inlet, respectively, the liquid can be transferred from the main outlet to the indoor piping by simply bypassing the two external openings with separate members. And gas can be supplied, and witness inspections by the Waterworks Bureau can be easily performed in a short time.
(5) Since pipe connection threaded parts are formed at the pipe side openings at both ends connected to the main pipe outlet and the indoor pipe inlet, the indoor pipe can be left unused for a long time due to relocation, etc. It can be attached instead of a meter, and it can prevent misalignment between the main pipe outlet and the indoor pipe inlet, and has external openings that communicate with the pipe openings at both ends. No liquid or gas is supplied from the main pipe outlet to the indoor pipe inlet simply by attaching a plug to the opening, and it is possible to prevent water theft, especially when connected to a water pipe.
(6) Since there is an external opening that communicates with the pipe openings at both ends and opens to the outside, the liquid in the main pipe can be removed from the external opening that communicates with the main outlet before starting the use of the indoor pipe. The gas can be taken out, and after checking the flow rate, physical properties, etc., and confirming the safety, the meter can be attached to supply the liquid or gas to the indoor piping.

Here, the temporary connection pipe is preferably made of a synthetic resin such as FRP or polyvinyl chloride resin or a metal such as stainless steel, copper, aluminum, or gun metal. Those made of synthetic resin are excellent in processability and low cost, and those made of metal are excellent in durability, and are particularly suitable for repeated use. In addition, the material is properly used depending on the type and temperature of the liquid or gas flowing through the main pipe, and corrosion resistance, heat resistance, etc. are given as necessary.
The length of the temporary connection pipe may be prepared in advance according to the width of the meter to be installed later, or it may be extended by adding between the temporary connection pipe and the main pipe outlet or indoor pipe inlet. An adjustment pipe for adjusting the height may be prepared and combined with a temporary connection pipe formed smaller than the width of the meter.
In addition, a closing member that fits to the outer shape of the external opening and the inner diameter of the opening is attached to the external opening except for connecting a pump, a pressure gauge, a bypass pipe, and the like for inspection. Thereby, invasion of dust from the external opening can be prevented. Moreover, since the sealing property can be improved by using an elastic body such as rubber as the material of the closing member, leakage of liquid or gas from the main pipe side can be prevented, and the reliability is excellent. In addition, the elastic body used for the member for obstruction | occlusion selects the thing which has chemical resistance, heat resistance, etc. according to the kind, temperature, etc. of the liquid and gas which flow through a main pipe.

Invention of Claim 2 is a temporary connection pipe of Claim 1, Comprising: It has the structure by which the said external side opening part was orthogonally formed with the axis line of the said piping side opening part. .
With this configuration, in addition to the operation of the first aspect, the following operation is provided.
(1) Since the external opening is formed perpendicular to the axis of the pipe opening, the external opening and the pipe opening can be easily communicated with each other, and the productivity is excellent.
(2) Since the external opening is formed perpendicularly to the axis of the pipe opening, the connection that bypasses the external openings by arranging the two external openings in the same plane. Work and installation of test pump and pressure gauge can be easily performed.
Here, the connecting pipe may be formed with a flat portion on the side facing the external opening. As a result, the connection pipe does not rotate at the time of temporary connection of the connection pipe, and the connection workability is excellent, and the external opening is stably arranged upward, so that the connection work bypassing the external opening, the test pump And workability such as pressure gauge installation work can be improved.
Moreover, it is not necessary to arrange the two external openings in the same plane, and it is easy to take out a pipe such as a bypass pipe or a test pump connected to the external opening in accordance with a place where the temporary connection pipe is temporarily installed. Since each direction can be selected, it is excellent in workability and versatility. In particular, by disposing the two external openings in opposite directions, a sufficient work space can be ensured when connecting to the external openings, and the workability is excellent.

A third aspect of the present invention is the temporary connection pipe according to the first aspect, wherein the external opening is formed in parallel with the axis of the pipe opening.
With this configuration, in addition to the operation of the first aspect, the following operation is provided.
(1) Since the outer side opening is formed in parallel with the axis of the pipe side opening, it is possible to prevent the two outer openings from being arranged in the same plane. During the connection work that bypasses, the external openings of each other do not get in the way and a working space can be secured, so that it can be temporarily used even in a place where the distance between the pipe outlet part and the indoor pipe inlet part is narrow.
Here, by disposing the two external openings in opposite directions, a sufficient work space can be ensured during connection work to the external openings, and the workability is excellent.

A fourth aspect of the present invention is the temporary connection pipe according to any one of the first to third aspects, further comprising an external connection threaded portion formed in the external opening. It has a configuration.
With this configuration, in addition to the operations of the first to third aspects, the following operation is provided.
(1) Since the external connection threaded part is formed in the external opening, the test pump and pressure gauge can be mounted securely and easily, and leakage of test liquid or gas can be prevented. Therefore, a highly reliable inspection can be performed.
(2) Since the external connection threaded portion is formed in the external opening, when the inspection is not performed, the cap can be securely screwed and the external opening can be closed. It is possible to reliably prevent such intrusion and leakage of liquid and gas from the main pipe.
Here, the external connection screwing portion can be formed on the inner periphery and / or outer periphery of the outer opening. When the external connection threaded part is formed on the inner periphery and outer periphery of the external opening, one temporary connection pipe can be used for connection with two types of pipes, and it has excellent versatility. . If the diameter and type of the connection part of the pipe such as the bypass pipe or test pump are different from the external connection threaded part of the external opening part, use the conversion connector etc. to connect the external side opening part and the bypass pipe. Or a test pump or the like may be connected.

As described above, according to the temporary connecting pipe of the present invention, the following advantageous effects can be obtained.
According to invention of Claim 1, it has the following effects.
(1) Since it has screw connection parts for pipe connection at both ends connected to the main pipe outlet part and the indoor pipe inlet part, it can be easily connected to the main outlet part and the indoor pipe inlet part for reliable positioning. Temporary connecting pipe with excellent resource saving that can be easily removed after installation of a building, etc., can be installed and the meter can be mounted, and has excellent workability. Can be provided.
(2) Since the pipe-side openings at both ends communicate with the external openings that are open to the outside, liquid and gas are supplied directly from the main pipe outlet to the indoor pipe inlet during temporary installation of the temporary connection pipe. Therefore, it is possible to provide a temporary connection pipe excellent in safety that is excellent in safety and can prevent theft of water particularly when connected to a water pipe.
(3) A liquid for testing from the external opening connected to the piping connection opening connected to the indoor piping inlet to the indoor piping by having the external opening connected to the piping opening at both ends. It is possible to perform leak inspection and pressure test of indoor piping by supplying gas and gas, and it has excellent functionality, and after inspection, it can reliably discharge the test liquid or gas to the main pipe without backflow It is possible to provide a temporary connecting pipe that is excellent in performance and maintainability.
(4) Since it has an external opening that communicates with the main outlet and the indoor piping inlet, respectively, the liquid can be transferred from the main outlet to the indoor piping by simply bypassing the two external openings with separate members. It is possible to provide a temporary connection pipe excellent in workability and functionality that can supply gas and gas and can be easily witnessed by a water station or the like in a short time.
(5) Since pipe connection threaded parts are formed at the pipe side openings at both ends connected to the main pipe outlet and the indoor pipe inlet, the indoor pipe can be left unused for a long time due to relocation, etc. Can be attached instead of a meter, and it is possible to prevent misalignment between the main pipe outlet and the indoor pipe inlet, and it has excellent reliability, and has external openings connected to the pipe openings at both ends. Therefore, it is excellent in workability and reliability because liquid or gas is not supplied from the main outlet to the indoor piping inlet just by installing a plug on the outside opening, especially when connected to a water pipe It is possible to provide a temporary connecting pipe excellent in functionality capable of preventing theft.
(6) Since there is an external opening that communicates with the pipe openings at both ends and opens to the outside, the liquid in the main pipe can be removed from the external opening that communicates with the main outlet before starting the use of the indoor pipe. The gas can be taken out and is excellent in workability, and after checking the flow rate and physical properties, etc. to confirm the safety, the meter can be installed and the liquid and gas can be supplied to the indoor piping for reliability and maintenance. An excellent temporary connection pipe can be provided.

According to invention of Claim 2, in addition to the effect of Claim 1, it has the following effects.
(1) Since the external opening is formed perpendicular to the axis of the pipe opening, the external opening and the pipe opening can be easily communicated with each other. It is possible to provide a temporary connecting pipe having excellent properties.
(2) Since the external opening is formed perpendicularly to the axis of the pipe opening, the connection that bypasses the external openings by arranging the two external openings in the same plane. It is possible to provide a temporary connecting pipe excellent in workability, which can easily perform work and mounting of a test pump and a pressure gauge in a short time.

According to invention of Claim 3, in addition to the effect of Claim 1, it has the following effects.
(1) Since the external opening is formed in parallel with the axis of the pipe opening, it is possible to prevent the two external openings from being arranged in the same plane. During connection work that bypasses the side openings, the external openings of each other do not get in the way and work space can be secured, so workability is excellent, and even in places where the distance between the pipe outlet and the indoor pipe inlet is narrow A temporary connection pipe excellent in versatility and space saving that can be used can be provided.

According to invention of Claim 4, in addition to the effect of Claims 1 thru | or 3, it has the following effects.
(1) Since the external connection screw part is formed in the external opening, it is possible to install the test pump and pressure gauge reliably and easily, and the workability and reliability are excellent. In addition to preventing leakage of liquid and gas, it is possible to perform highly reliable inspections, and when not performing inspections, the caps etc. can be securely screwed in to close the external openings, and dust Thus, it is possible to provide a temporary connection pipe excellent in reliability that can reliably prevent the intrusion of the liquid and the like and the leakage of liquid and gas from the main pipe.

Hereinafter, a temporary connection pipe according to an embodiment of the present invention will be described with reference to the drawings.
(Embodiment 1)
FIG. 1A is a front view of a temporary connection pipe according to Embodiment 1 of the present invention, and FIG. 1B is a plan view of the temporary connection pipe according to Embodiment 1 of the present invention.
In FIG. 1, 1 is a temporary connecting pipe, 2a and 2b are main outlets and indoors of various existing and new pipes that supply liquids such as tap water and gases such as propane gas at homes, offices, and laboratories. Pipe connection threaded portions 3a and 3b respectively formed at both ends of the temporary connection pipe 1 for connection to the pipe inlet section are connected to a bypass pipe, a test pump, a pressure gauge, etc., or sealed with a cap or the like. The external connection screwing portions 4a and 4b are connected to the pipe connection screwing portions 2a and 2b and the external connection screwing portions 3a and 3b. Reference numerals 5b and 6b denote a pipe side opening and an external side opening of each of the communication portions 4a and 4b.

About the temporary connection pipe formed as mentioned above, the usage method at the time of installing in a newly established water pipe is demonstrated below, referring drawings.
FIG. 2 is a schematic diagram showing an installation state of the temporary connecting pipe in the first embodiment of the present invention.
In FIG. 2, 10 is a main pipe outlet part of a newly installed water pipe provided with a stop cock valve 10a, 11 is an indoor pipe inlet part, 12 is a main pipe outlet part 10 and indoor pipe inlet part 11 of the temporary connection pipe 1. Temporary nuts 13 that are temporarily connected to the connecting screw portions 2a and 2b at both ends, respectively, have three high-pressure hoses 14 connected by a Y-shaped three-way valve 15 whose path can be changed by a switching knob 15a. Two bypass pipes are screwed and fixed to the external connection screwing portions 3a and 3b of the temporary connection pipe 1 by a connection nut 14a such as an owl nut disposed at the tip of the high-pressure hose 14, and 16 is a bypass pipe. 13 is a connector screwed into the connection nut 14a and connected to the test pipe 17, 18 is a test valve provided in the middle of the test pipe 17, and 19 is a pressure gauge 20 provided in the test pipe 17. For testing with Pump, arrows a to e are path showing the flow of the tap water.

A leak test and water pressure test method for a newly built indoor pipe using a temporary connection pipe will be described.
First, all the paths of the three-way valve 15 and the test valve 18 and the stop cock valve 10a are opened by the switching knob 15a. The tap water sent from the main pipe outlet 10 of the path a passes through the path b, is branched into the paths c and d by the three-way valve 15, is passed to the test pump 19, and the indoor piping inlet of the path e 11 is sent to indoor piping. After opening the faucet in the building and confirming the running of tap water into the indoor piping, close the stop cock valve 10a and close the path connected to the main pipe outlet 10 of the three-way valve 15. The tap water is pumped or pressurized by the pump 19 for use. The pumped tap water passes from the test pipe 17 through the bypass pipe 13 and is branched by the three-way valve 15 and passes from the path d through the external opening 6b, the communication part 4b, the pipe side opening 5b, and the indoor pipe of the path e. Water is fed from the inlet 11 to the indoor piping. As a result, water leakage in the indoor piping is confirmed. Moreover, the pressure of the tap water pumped from the test pump 19 is managed by the pressure gauge 20, and the water pressure test of the indoor piping is performed.
In the first embodiment, the three-way valve 15 is used to prevent the reverse flow of tap water to the main side of the newly installed water pipe. However, the external side opening 6a communicating with the main pipe outlet 10 A closing valve may be provided between the bypass pipe 13 and the connecting nut 14a, or the bypass pipe 13 may be removed from the external opening 6a and a closing plug or the like may be attached to the connecting nut 14a. Good.
In the witness inspection by the Waterworks Bureau, the water pressure test described above is performed, followed by a water flow test from the main water pipe to the indoor pipe. First, the path c connected to the test pump 19 of the test valve 18 and the three-way valve 15 is closed, and the stop cock valve 10a is opened. An external opening 6a communicated with the pipe connection opening 5a connected to the main pipe outlet 10 and an external opening 6b communicated with the pipe connection opening 5b connected to the indoor pipe inlet 11 Since it is connected via the bypass pipe 13, the tap water fed from the main pipe of the water pipe passes through the path b from the main pipe outlet 10 of the path a, and is branched into the path d by the three-way valve 15, and the path e Water is fed from the indoor piping inlet 11 to the indoor piping. Confirm the passage of water to the indoor piping by opening the faucet in the building. After completing all inspections, remove the temporary connecting pipe 1 and install the meter.
In addition, although this Embodiment demonstrated the water pipe as an example, it is applicable also to a gas pipe and various piping.

As described above, the temporary connecting pipe in the first embodiment is configured, and thus has the following effects.
(1) Since the pipe connection threaded portions 2a and 2b are connected to the main pipe outlet 10 and the indoor pipe inlet 11 respectively, the main pipe outlet 10 and the indoor pipe inlet 11 can be easily connected. Thus, the positioning can be performed reliably, and the meter can be easily removed after the construction of the building or the like is completed, and the meter can be collected and used repeatedly after the meter is installed.
(2) Since the pipe-side openings 5a and 5b drilled at both ends are not in communication, the tap water is sent from the main pipe outlet 10 to the indoor pipe inlet 11 during temporary installation of the temporary connection pipe 1. Without being stolen.
(3) By connecting the pipe side opening 5b and the external side opening 6b through the communication part 4b, tap water is sent from the external side opening 6b to the indoor pipe connected to the indoor pipe inlet 11. Water leak inspection and water pressure test of indoor piping can be performed.
(4) Since the external opening 6a and 6b communicated with the main pipe outlet 10 and the indoor piping inlet 11 respectively, the main pipe is simply bypassed by the bypass pipe 13 with the two external openings 6a and 6b. Tap water can be sent from the outlet portion 10 to the indoor piping inlet portion 11, and a witness inspection by the Waterworks Bureau can be easily performed in a short time.
(5) Since the external openings 6a and 6b are formed orthogonal to the axis of the pipe openings 5a and 5b, the external openings 6a and 6b and the pipe openings 5a and 5b are connected to the communication portion 4a. 4b makes it easy to communicate with each other and is excellent in productivity.
(6) Since the external side openings 6a and 6b formed perpendicular to the axis of the pipe side openings 5a and 5b are arranged in the same plane, the two external side openings 6a and 6b are bypassed. Connection work and test pump and pressure gauge installation work can be performed easily.
(7) Since the external connection screw parts 3a and 3b are formed in the external openings 6a and 6b, the bypass pipe 13 can be attached reliably and easily, and water leakage can be prevented. Therefore, a highly reliable inspection can be performed.
(8) Since the external connection screw portions 3a and 3b are formed in the external openings 6a and 6b, when the inspection or the like is not performed, the cap or the like is securely screwed and fixed to the external openings 6a and 6b. 6b can be closed, and entry of dust and the like and water leakage from the main pipe can be reliably prevented.
(9) The bypass pipe 13 that bypasses the two external openings 6a and 6b respectively communicating with the main pipe outlet 10 and the indoor pipe inlet 11 has the three-way valve 15 so that a route through which tap water flows can be arbitrarily set. It can be selected, and leak inspection and water pressure test of indoor piping can be reliably performed without backflowing tap water to the main side.
(10) Since the pipe connecting threaded portions 2a and 2b are connected to the main pipe outlet 10 and the indoor pipe inlet 11 respectively, the meter is used when the indoor pipe has not been used for a long time due to moving or the like. The main pipe outlet 10 and the indoor pipe inlet 11 can be prevented from being displaced, and the pipe-side openings 5a and 5b at both ends communicate with the communication parts 4a and 4b to the outside. Since the external openings 6a and 6b are opened, tap water is not sent from the main outlet 10 to the indoor piping inlet 11 just by attaching a plug to the external openings 6a and 6b. Water can be prevented.
(11) Since the pipe side openings 5a and 5b at both ends and the outside openings 6a and 6b which are formed in communication with the communication parts 4a and 4b and open to the outside are provided, the main pipe is used before the start of indoor pipe use. The main tap water can be taken out from the external side opening 6a connected to the pipe side opening 5a connected to the outlet 10, and the staff of the Waterworks Bureau confirmed the safety by examining the water volume and water quality. The meter can be installed above to supply tap water to the indoor piping.

(Embodiment 2)
Next, the temporary connection pipe in Embodiment 2 of this invention is demonstrated. In addition, the same code | symbol is attached | subjected to the thing similar to Embodiment 1, and description is abbreviate | omitted.
FIG. 3 (a) is a front view of the temporary connection pipe according to the second embodiment of the present invention, FIG. 3 (b) is a plan view of the temporary connection pipe according to the second embodiment of the present invention, and FIG. It is a perspective view which shows the modification of the form 2 of.
The temporary connection pipe 21 in the second embodiment is different from that in the first embodiment in that the outer side openings 6a and 6b having outer connection screwing portions 3a and 3b formed on the outer periphery are the pipe side openings 5a, It is formed in parallel with the axis of 5b and arranged in the opposite direction.
4 differs from the temporary connection pipe of the second embodiment in that the external openings 6a and 6b are formed perpendicular to the axis of the pipe openings 5a and 5b, and are arranged in the opposite direction. It is a point.

As described above, according to the temporary connecting pipe in the second embodiment, the following actions are obtained in addition to the actions obtained in the first embodiment.
(1) By forming the external openings 6a and 6b parallel or orthogonal to the axis of the pipe openings 5a and 5b, the two external openings 6a and 6b are not arranged in the same plane. In the connecting operation of bypassing the two external openings 6a and 6b, the external openings 6a and 6b can be secured without interfering with each other, so that the main outlet 10 and the indoor piping can be secured. Even in a place where the interval between the inlet portions 11 is narrow, it can be temporarily used.

  The present invention temporarily installs between the main pipe outlet part and the indoor pipe inlet part of the existing and new pipes for supplying liquid such as tap water and gas such as propane gas, and the indoor pipe inlet part. Positioning with the pipe inlet can be performed reliably, meter installation is easy after work is completed and workability is excellent, and the main pipe outlet and the indoor pipe inlet are not directly connected to prevent water theft. In addition, it can be used suitably as a temporary connection pipe that can easily perform inspections and pressure tests for water leaks and gas leaks by supplying safe test liquids and gases to indoor pipes in various pipes in factories, etc. Can do.

(A) Front view of temporary connection pipe in Embodiment 1 of the present invention (b) Plan view of temporary connection pipe in Embodiment 1 of the present invention The schematic diagram which shows the installation state of the temporary connection pipe | tube in Embodiment 1 of this invention. (A) Front view of temporary connection pipe in embodiment 2 of the present invention (b) Plan view of temporary connection pipe in embodiment 2 of the present invention The perspective view which shows the modification of Embodiment 2.

Explanation of symbols

1, 21, 31 Temporary connection pipe 2a, 2b Pipe connection screw part 3a, 3b External connection screw part 4a, 4b Communication part 5a, 5b Pipe side opening part 6a, 6b External side opening part 10 Main pipe outlet part 10a Water stop valve 11 Indoor pipe inlet 12 Temporary nut 13 Bypass pipe 14 High pressure hose 14a Connection nut 15 Three-way valve 15a Switching knob 16 Connector 17 Test pipe 18 Test valve 19 Test pump 20 Pressure gauge a, b , C, d, e route

Claims (4)

  A temporary connection pipe that is temporarily installed in place of a meter that is installed between the main pipe outlet of various existing and new pipes that supply liquids such as tap water and propane gas, and the indoor pipe inlet. A pipe-side opening at both ends connected to the main pipe outlet and the indoor pipe inlet, a pipe connection screw formed at the pipe-side openings at both ends, and a pipe side at both ends A temporary connection pipe having an external opening that communicates with the opening and opens to the outside.   The temporary connection pipe according to claim 1, wherein the external opening is formed perpendicular to an axis of the piping opening.   The temporary connection pipe according to claim 1, wherein the outer opening is formed in parallel with an axis of the pipe opening. The temporary connection pipe according to any one of claims 1 to 3, further comprising an external connection threaded portion formed in the external opening.

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