DE29617140U1 - Multifunctional test and auxiliary device for maintenance, repair, pressure and leak test work on sanitary, heating systems and other piping systems, lines and systems - Google Patents

Description

JosefFaßbender

Schopenhauerstrasse 5

53842 Troisdorf-Oberlar

and

Detlef Kisters

In Lohfeld 20

52457 Aldenhoven

Test and auxiliary equipment

The invention relates to a compact, multifunctional testing and auxiliary device for maintenance and testing work on heating systems, hot water systems and the like, as well as for pressure and leak tests on sanitary, heating and other piping systems, lines and systems.

1. Maintenance, repair and inspection work on heating systems, hot water systems and the like:

In order to carry out maintenance and repair work on water-filled systems, it is generally necessary for these systems to be emptied so that the necessary maintenance or repair work can be carried out.
This generally requires the use of a long hose to fill and empty the systems, and depending on the local conditions and the distance to the water supply point, this work can only be carried out by two technicians. In particular, venting these systems during the filling process is very time-consuming and laborious, because spray water often has to be collected from nipples that are very difficult to access.

With regard to the necessary inspection work during maintenance work on heating systems, hot water systems and the like, certain inspection and measurement work is required depending on the system, legal regulations and manufacturer's instructions.

This work is often not carried out or is only carried out superficially due to a lack of measuring equipment and the risk of people being injured is often very high.

e.g. checking the blow-out pressure and general function of the safety valve.

Here, if at all, only the function of the safety valve is tested insofar as the safety valve is opened and it is thereby established that the safety valve is functioning. The legally prescribed pressure at which the valve must automatically open and close again has not yet been tested or has only been tested with very extensive tools, with the risk of severe contamination of living spaces.

Faßbender/Kisters Page: 2

2. Pressure and leak tests on sanitary, heating and other water pipes and systems:

When carrying out repair work on the above-mentioned pipe systems and equipment, emptying and subsequent filling is also necessary. As already described above, this work is very time-consuming and it is often necessary to use a longer hose and additional personnel are required.

For leak testing or pressure testing, these lines/systems are tested for leaks with either water or air, depending on the system, situation or temperature.

This laborious test often requires a great deal of time and effort in terms of personnel, and in the case of compressed air tests, the fact that additional pressure testing devices are required.

In some cases, residual drainage work on piping systems cannot be carried out at all because the necessary auxiliary equipment is not available.

The object of the present invention is to carry out the checking/measurement of the safety valve pressure, checking/measurement of the differential pressure and pump output pressure, checking /measurement of the expansion tank pressure and pressure/leakage tests on the lines/systems listed in point 2 as a compact and multifunctional auxiliary device for filling, emptying, venting and as a testing device .

In addition, the testing and auxiliary device should also make the various filling devices on heating and hot water systems superfluous. This testing and auxiliary device simplifies the above-mentioned work processes in terms of time, personnel and costs for executing companies, system and device manufacturers and for the end user.

3. Device description

The invention consists of a compact housing in which the basic functions are installed and mounted. (Drawing 1, Drawing 2, Drawing 3)
The following are permanently installed/mounted on and in the above housing:

- Pressure gauge for checking the safety valve (1)

- Pressure gauge for checking the expansion vessel and other
Air pressure tests (2)

- Pressure gauge for checking the supply pressure (3)

- Pressure gauge for checking the return pressure (4)

= Testing the differential pressure and pump performance (3 + 4)

- Pressure gauge for pressure and filling level testing (5)

- Two shut-off valves (6)

- Non-return valve (7) and check valve (7A)

- Connection nipple for quick couplings (8A to 8H)

- various cables and connecting parts (9)

- various labels and handling instructions (10)

- Carrying attachments (11)

- Storage compartment for additional and auxiliary parts (12)

Faßbender/Kisters Page: 3

The following are additional and auxiliary equipment, which is available in the appropriate storage compartment in the hoof and testing device:

- various connecting hoses, different lengths

- Special key

- Air pump with mounted connecting hose

- Nipples for quick couplings

- Plug-in adapter for device nipples for connecting quick couplings (Drawing 8)

- Quick couplings/nipples mounted on the above-mentioned connecting hoses

Handling the invention

A. Maintenance, repair and inspection work on

Heating systems, hot water systems, etc.

The auxiliary and testing device is set up in the immediate vicinity of the systems / work areas or hung up / attached using the associated fastening and holding straps.

1. Inspection and pressure measurement -expansion vessel- (Drawing 4)

A flexible hose approximately two meters long and approximately 4 - 8 mm thick, with a quick coupling mounted at each end, is

a. on the "connection nipple for expansion vessel testing" mounted on the auxiliary and testing device and

b. plugged into the corresponding connection on the expansion vessel.

The connection on the expansion tank is opened.

The existing air pressure closes the "air check valve" installed in the HuTs and test device and the existing pressure of the expansion vessel is read on the built-in pressure gauge. If it should now happen that there is too little air pressure in the expansion vessel, the missing compressed air is pumped in using the "air pump" additional part belonging to the invention, whereby the hose mounted on the air pump with the quick coupling is plugged onto the "connection nipple for air pump" attached to the auxiliary and test device. The required amount of air can be checked on the above-mentioned pressure gauge.

2. Checking the safety valve -blow-out pressure- (Drawing 5)

A hose approximately 1 m long - as described in point 1 - is placed on the "safety valve" connection nipple mounted on the auxiliary and test device and on an adapter with a nipple for quick coupling screwed onto the safety valve.

Another hose as mentioned above is attached to the "outlet pressure safety valve" nipple mounted on the side of the housing, but the other end of the hose is placed in a collecting container or drainage area such as a washbasin, shower tray or bathtub.

The shut-off valve installed on the test and auxiliary device is closed.

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Another hose connection is made from a water supply point to the device connection nipple for water supply and from the device nipple connection "filling line" to the system nipple "heating flow", plugged in with quick couplings.

The system shut-off valves (heating system - pipe system) - flow and return shut-off valves - are both closed.

The water supply is opened at the auxiliary and test device shut-off valve and the boiler is filled via the heating flow.

This filling process is then carried out until the safety valve opens automatically and releases the excess pressure. The above filling process is terminated immediately. At the moment when the safety valve automatically releases the excess pressure, this pressure is read off the corresponding pressure gauge on the auxiliary and testing device. This read-off pressure must comply with legal requirements.

The shut-off valve (6) on the auxiliary and test device for releasing the blow-out pressure is opened and the escaping overpressure water reaches the above-mentioned drain area via the above-mentioned second hose.

The shut-off valve remains open until the safety valve closes automatically again.

This process is observed on the pressure gauge and this gives you the exact information about the pressure drop at which the safety valve automatically closes again.

Depending on the readings, which are stipulated by law, the safety valve may need to be replaced.

3. Checking the system water level / pressure and filling of the systems (Figure 6)

A hose as described in point 1 is plugged onto the "filling line to the device" connection nipple mounted on the auxiliary and test device and the other end with the quick coupling onto the plug-in adapter on the forward or reverse flow nipple.

A second hose is plugged onto the side-mounted connection nipple “filling line” and the other end of the hose onto the connection adapter of the water pipe supply point (tap, bath mixer etc.).

The "filling process shut-off valve" installed on the auxiliary and testing device is closed.

The above-mentioned water pipe supply valve is opened and the water pressure reaches the above-mentioned closed shut-off valve via the plugged-in hose connection.

The corresponding valve / nipple (flow or return) is opened on the system.

By opening the shut-off valve on the auxiliary and testing device above, the water quantity/pressure for filling the system can now be regulated.
Any backflow into the drinking water pipe area is prevented by the backflow preventer installed in the auxiliary and testing device.

After the filling process is complete, the above-mentioned shut-off valve and the water supply point are closed again.

Faßbender / Kistere Page: 5

Before the hose connections are removed again, the "pressure gauge / water level indicator" mounted on the system can / must be checked.

All you need is the pressure shown on the pressure gauge on the FBlfs-u.

Test device compared with the pressure gauge display of the system.

In this case, the displayed values must be the same.

After this check, the water supply to the flow or return line is closed and the hose connections are dismantled.

4. Checking the flow and return pressure and checking the pump performance (differential pressure measurement) (Drawing 7)

With two hoses, as already described, the plug connections are created from the nipples attached to the auxiliary and test device "supply connection" and "return connection" to the plug-on adapters on the supply and return systems.

The maintenance valves on the system are opened and the system is put into operation.

The connection nipples on the system's supply and return lines are opened so that a pressure connection is established to the pressure gauges "pressure supply" and "pressure return" installed in the auxiliary and test device through the plugged-in hose connections.

The respective pressure of the system’s supply and return lines is now checked using the above-mentioned supply and return pressure gauges of the auxiliary and test device.

The pump built into the system is now switched on.

This is where the second test process begins .

When the pump is put into operation, the pump output now provided, which pumps the system water with a corresponding pump output in the direction of flow, creates an increase in pressure in the supply line area .

This results in differences in the readings on the pressure gauges mentioned above.

If the pump is working properly, the pressure gauge for the supply line must show a higher pressure than the pressure gauge for the return line.

This gives us the "differential pressure" display.

This differential pressure indicates the actual pump performance!

5. Additional parts according to the invention and associated with the invention

- Push-on adapter for system nipple - (Drawing 8)

This "plug-on adapter for device nipples" is an essential component of the above-mentioned overall invention "auxiliary and testing device".

«. „ _t Faßbender /Kisters Page: 6

This "snap-on adapter" is designed to accommodate quick couplings for all common system and device nipples. This snap-on adapter is plugged onto the device and system nipple mentioned above in such a way that the front nipple area is pressed into a rubber seal. By tightening the existing lock nut, two spring elements are pressed downwards and thereby enclose the rear ring area of the system nipple.

This ensures that the push-on adapter no longer comes off the system nipple due to water pressure or other circumstances.

The other part of the plug adapter is now screwed into the adapter part that has been screwed on above, and this ensures that this adapter part, to which the nipple for the quick coupling has been attached, is pressed against the other side of the rubber seal mentioned above, thus creating an airtight and watertight transition from the system nipple to the quick coupling and other necessary connections.

The design of this plug adapter is also ideal for creating connections of the same type.

B. Pressure and leak tests on sanitary, heating and other water pipes/systems

Here too, the auxiliary and testing device has a practical and simple range of applications.

1. Leak test with water pressure (Figure 9)

It does not matter whether it is a new installation or repair work. Checking the tightness of pipes is always possible with the Hufs and testing device for entire pipes or partial areas.

The main component here is the plug connection function already described "Filling process of the system".

The main difference here is that this filling process of pipe systems is carried out in such a way that a plug connection can be made to any available tap. If the plug connection has been created from a water supply point to the auxiliary and testing device, a plug connection is now made from the "filling line connection nipple" to any other possible threaded opening in the pipe to be tested. Connection options here are wall connection angle valve, wall connection bath and shower mixer or, in the heating area, individual radiators and connection points.

What is important here is the fact that these pipes were not tested with uncontrolled water pressure as before, but with the pressure gauge display of the auxiliary and testing device, the

,. ,. Faßbender/Kisters Page: 7

actual test pressure can be influenced by regulation via the shut-off valve.

Without any other test equipment, which is required for time-based testing of invisible pipe sections, a pressure test can now be carried out using the auxiliary and test device and the pressure gauges installed in it.

The pressure drop/leakage can be read precisely on the pressure gauge.

Another important testing area with the auxiliary and testing device is the testing of pipe areas that are not directly connected to the water supply pipes / main pipes.

e.g. hot water pipes for instantaneous water heaters.

In this case, there is no direct connection to the cold water pipe before installing the instantaneous water heater.

Previously, complicated connections had to be made as connecting pipes and the testing of these hot water pipes was only possible by supplying water under pressure via the cold water pipe.

Just as described above, a plug connection is created from a water supply point to the auxiliary and testing device and a hose plug connection supported by an adapter is created from the "filling line" connection on the auxiliary and testing device to the above-mentioned hot water line.

Now, independently of the cold water pipe, the hot water pipe area can be checked using the pressure gauge tester.

2. Leak testing of pipelines using compressed air (Figure 10)

Here too, the area of application with the auxiliary and testing device is almost unlimited.

The main difference to the above-mentioned test procedure with water pressure is that all of the leak tests described above are now carried out with compressed air using the auxiliary and testing device.

The previous additional use of compressed air testing devices is no longer necessary through the use of the auxiliary and testing device.

The plug connection process/structure is the same as for the water pressure test, but here the plug connections from the "connection for expansion vessel" on the auxiliary and testing device are plugged into the corresponding adapter on the pipes to be tested and from the plug nipple connection "air pump connection" either the air pump is used to generate compressed air or an electric compressed air pump is connected in between.

,. .. Faßbender /Kisters Page: 8

The pressure gauge "Pressure gauge" monitors the test pressure required to test the lines and the test/leakage result is read off.

3. Emptying of water pipes of any kind (Figure 11)

The Hufs and testing device is used to empty all pipe systems.

The special attention to this "residual drainage" lies in the fact that with the help of the auxiliary and testing device, residual water can be drained easily from pipe systems such as, for example,

- Underfloor heating - pipe systems

- Pipeline areas below the existing drainage points

- etc
is possible.

By creating hose plug connections from the "expansion tank connection" on the auxiliary and test device to the line area to be emptied using appropriate adapters, the air pump belonging to the accessory is also plugged into the "air pump connection".

A hose belonging to the equipment is attached to another pipe opening for emptying and placed in the corresponding water collection areas (sink, shower, bathtub, etc.).

By operating the air pump, compressed air is now forced into the pipe system to be emptied via the hose connection mentioned above. This air supply process is carried out until no more residual water comes out of the other hose mentioned above (water collection area). Simultaneous control that only sufficiently strong air pressure is supplied is achieved by displaying the compressed air produced on the "expansion vessel pressure gauge".

Previous pipe damage caused by frost because the pipe sections mentioned above could not be "emptied" no longer occurs when the "emptying" is carried out using the auxiliary and testing device.

4. The auxiliary and testing device as a pressure monitoring and pressure regulation station . (Drawing 12)

The auxiliary and testing device is connected between loose - these can be, for example, longer water hose connections - or fixed water pipe connections. The auxiliary and testing device is connected to the above-mentioned pipe systems using appropriate hose connections with quick coupling connections, whereby larger connecting hoses can also be used here, with appropriate adapters so that the water is directed over the auxiliary and testing device in the flow direction of the water supply.

Faßbender / Kisters Page: 9 ··

By operating the corresponding* shut-off valves on the auxiliary and test device, the existing water pressure can now be regulated as required.

The pressure gauges installed on the auxiliary and testing device allow the water pressure to be constantly monitored.

Water backflow and possible contamination of the drinking water areas is prevented by the backflow preventer built into the auxiliary and testing device.

Conclusion:

It is clear that the "auxiliary and testing device" according to the invention is a considerable help in almost all activities for carrying out maintenance work on heating, hot water systems and similar pipe systems for emptying, filling and venting.
A compact unit for testing processes on heating, hot water and other piping systems and is therefore used as a multifunctional "auxiliary and testing device" in almost all areas of sanitary, heating and other piping construction.
The "auxiliary and testing device" not only simplifies and accelerates previous work executions, but with this device, testing procedures that could not be carried out previously or could only be carried out partially are now possible in a simple form.

The HiMs and testing device is, in its design and handling, an additional safety station, depending on the application.
The connecting hoses belonging to the auxiliary and testing device are designed in such a way that only a few hoses are necessary, since ultimately only two or three identical hoses are used and required.

The use of the Hufs and testing device means cost savings for thermal bath, boiler and system manufacturers, because the testing processes that are now possible, such as differential pressure measurement, save the manufacturer the need to deliver replacement parts, as actual performance pressure test results are now available. The company and the end user experience cost savings due to less personnel deployment and faster work completion.

The invention consists of a compact housing, the design and dimensions of which are such that, with all assembled parts including additional parts and hoses, a device measuring approximately 45 cm x 40 cm and approximately 10 - 15 cm deep is available for handling all of the auxiliary and testing work listed.
The auxiliary and testing device is easy to transport in terms of weight and can be used in all areas thanks to the accompanying carrying and fastening straps.

Legend to drawings AZ; 296 17 140.9

Drawing 1:

1 - Pressure gauge

2 - Pressure gauge

3 - Pressure gauge

4 - Pressure gauge

5 - Pressure gauge

6 - Shut-off valve

8B - Connection nipple for quick coupling 8C - Connection nipple for quick coupling

11 - Fastening loops / fastening eyelets for carrying strap

12 - Storage compartment for additional and auxiliary parts

13 - Housing

Drawing 2:

1,2,3,4,5 - Pressure gauge 6 - Shut-off valve 8A ₃ 8B ₅ 8C, 8D, 8E ₅ 8F ₅ 8G ₅ 8H - Connection nipple for quick coupling

10 - Information signs / connection identification

11- Fastening loops / fastening eyelets for carrying straps

12- Storage compartment for additional and auxiliary parts

Drawing 3:

1,2,3.4,5 - Pressure gauge

6 - Shut-off valve

7 - Non-return valve 7A - Check valve 8A ₅ 8B, 8C, 8D, 8E ₅ 8F ₅ 8G ₅ 8H - Connection nipple for quick coupling 9 - Connecting lines / pipe connections

11 - Fastening loops / fastening eyelets for carrying straps

12 - Storage compartment for additional and auxiliary parts

Drawing 4:

2 - Pressure gauge 8A, 8B - Connection nipple for quick coupling

13 - Hose

14 - Quick coupling

15 - Threaded connection

17 - Expansion vessel connection

18 -Air pump

H - Heating system (heating boiler / heating system)

Drawing 5:

1 and 5 - Pressure gauge

6 - Shut-off valve 6A - Shut-off valve

7 - Backflow preventer

8C ₅ 8D. 8E ₅ 8H - Connection nipple for quick coupling 13 - Hose 13A-Hose

•&bgr; ··

further drawing 5:

14 - Quick coupling

15 - Shut-off valve heating flow

16 - Shut-off valve heating return

18 - Safety valve

19 - Nipple (connector for quick coupling)

20 - Push-on adapter for nipple

H - Heating system (heating boiler / heating system)

V - Heating flow R - Heating return A - Water supply point / water tap

Drawing 6:

5 - Pressure gauge

6 - Shut-off valve

7 - Backflow preventer

8E, 8H - Connection nipple for quick coupling

13 - Hose

13S- Hose for emptying 13A-Hose

14 - Quick coupling 14A - Quick coupling 30 - Connection nipple on the device A- Water supply point / water tap H - Heating system (heating boiler / heating system)

Drawing 7:

3 and 4 - Pressure gauge 8F and 8G - Connection nipple for quick coupling

13 - Hose

14 - Quick coupling

21 - Housing connection nipple / push-on adapter

H - Heating system (heating boiler / heating system)

V - Heating flow R - Heating return

Drawing 8:

Fig.l = Plug-in adapter with screwed-in plug-in part for quick coupling Fig.2 = System nipple / drain nipple on thermal baths / boilers Fig.3 = Sectional drawing of plug-in adapter Fig.4 = Plug-in part for quick coupling

Fig.5 = System nipple (Fig.2) with push-on adapter and tightened lock nut Fig.6 = Push-on adapter on system nipple with screwed-in push-on part including quick coupling, as a finished connection

Fig.l and Fig. 3:

1 - Lock nut

2 - Clamp bolt

2 - Clamp bolt I - Internal thread

Further drawing 8; Fig. 5:

1 - Lock nut

2 - Clamp bolt D - Seal

Fig.6:

1 - Lock nut

2 - Clamp bolt D - Seal S - Quick coupling

Drawing 9:

5 - Pressure gauge

6 - Shut-off valve

7 - Backflow preventer

8E and 8H - Connection nipple for quick coupling

13 - Hose

14 - Quick coupling

22 - Adapter

A - Water extraction point / water tap K - Cold water pipe LH - Heating system pipe W-wall

Drawing 10:

2 - Pressure gauge

8A and 8B - Connection nipple for quick coupling

13 - Hose

14 - Quick coupling L - Air pump WL - Water pipe LH - Heating system pipe W-wall

Drawing 11:

2 - Pressure gauge

8A and 8B - Connection nipple for quick coupling

13 - Hose

14 - Quick coupling

23 - Adapter, pipe connection

25 - Adapter, pipe end / line drain end

R - Pipeline Rl - Pipeline - Water bag W - Wall B - Floor

Drawing 12:

5 - Pressure gauge

6 - Shut-off valve

7 - Backflow preventer

8E and 8H - Connection nipple for quick coupling

further drawing 12:

14 - Quick coupling 13 - Hose 26 - End line (larger water hose etc. or fixed pipe connections) F - Flow direction

Claims (1)

·* .» Fassbender/Kisters Protection claims Testing and auxiliary device for filling, emptying, venting, functional, pressure and leak tests of water-containing systems, devices, pumps and safety devices in heating systems, hot water systems and other piping systems and installation systems in the sanitary and heating construction sectors, characterized by (drawings 1, 2, 3) a compact housing with the pressure gauges (1 to 5) installed and mounted on and in it, shut-off valves (6), connection nipples for quick couplings (8A to 8H), backflow preventer (7), check valve (7A), connection and connecting parts (9), fastening loops (11), and storage compartment for additional and auxiliary parts (12). Testing and filling device for expansion vessels according to claim 1, characterized (drawing 4) in that an approximately 1.80 m long hose (13) with an internal diameter of approximately 4-8 mm, which is provided with a quick coupling (14) at one end and a threaded connection (15) at the other end, is plugged onto the corresponding housing connection nipple (8A). The hose end with the threaded connection is screwed onto the corresponding connection of the expansion vessel (17). At the second housing nipple connection provided for this test process, a hose (13) as described above, 1.50 m long, on which an air pump (18) is mounted at one end and a quick coupling at the other end, is plugged onto this second housing connection nipple (8B). Function and blow-out pressure test device for safety valves according to Claim 1, characterized (drawing 5) that a hose (13A) with an inner diameter of 4-8 mm, about 1.40 m long, which is provided with a quick coupling (14) on both ends, is plugged onto the corresponding housing nipple connection (8D), and the second quick coupling is stretched onto an adapter screwed into the safety valve (18) with a nipple for a quick coupling. A hose (13) of the same length, which is provided with a quick coupling on one end and a nipple (19) on the other end, is plugged onto the other housing nipple (8C) installed for this test process. From the water supply point (A), a hose connection from the above-mentioned 1.50 m hose is plugged onto the connection nipple (8H) via the quick coupling (14). From the connection nipple (8E) another 1.40 m long hose connection with quick coupling (14) is plugged into the plug-in adapter (20) that was previously plugged onto the nipple of the heating device flow (V). Fassbender / Kisters Test device for checking system pressure, water levels and pressure indicator fittings according to claim 1, characterized (drawing 6) that a approximately 1.50 m long, 4-8 mm inner diameter, long hose (13A) which is provided with a quick coupling (14) at each end is plugged onto the corresponding housing connection nipple (8E) and a further plug connection is made by plugging the other quick coupling (14A) onto the corresponding connection nipple of the areas / devices to be tested. Auxiliary device for filling heating systems, hot water preparation systems and the like according to claim 1, characterized in that (drawing 6) a hose (13A) about 1.50 m long with an inner diameter of 4-8 mm, which is provided with a quick coupling (14) at both ends, is attached to the corresponding housing connection nipple (8E). The other quick coupling (14a) that has not yet been attached is attached to a corresponding connection nipple (30) of the system areas to be filled or emptied. A second hose as mentioned above is used to empty the systems. (13) is plugged onto the corresponding additional connection nipple (8H) installed in the housing. To fill the systems, the second hose used for emptying is connected to the free quick coupling (14) is attached to a corresponding adapter that has been screwed to the corresponding water outlet (A). The filling pressure and the filling quantity are regulated independently of the water supply point at the shut-off valve (6). The filling quantity and pressure are monitored at the gauge (5). Test device for testing the flow and return pressure in heating systems, pipe systems of water heaters and the like, according to claim 1, characterized in that (drawing 7) hose connections (13) made of hoses approximately 1.50 m long and 4-8 mm inner diameter, which have a quick coupling (14) at both ends, are made on corresponding housing connection nipples (8F and 8G) in such a way that a quick coupling (14) is plugged onto corresponding housing connection nipples (21) and connection adapters of the corresponding test areas, such as flow or return, cold water or other line connections. Test and measuring device for determining the pump output pressure and for carrying out the differential pressure measurement, according to claim 1, characterized in that (drawing 7) an approximately 1 m long hose (13) which has a quick coupling (14) on each end, on the corresponding housing connection nipple (8F) and on the » Fassbender / Kisters A second identical hose (13) is plugged onto another housing connection nipple (8G) and onto the connection adapter of the return line. Push-on adapter as an auxiliary device for making connections between system nipples/drainage nipples to accommodate the quick couplings, characterized (drawing 8) by the fact that the push-on adapter (Fig. 1) consists of a nipple push-on part (Fig. 3) and a push-on part for quick couplings (Fig. 4). The nipple push-on part (Fig. 3) is designed with an internal seal so that when pushed onto the system nipple/drainage nipple (Fig. 2) an airtight and watertight seal is created. By tightening the lock nut (1), the two clamp bolts (2) are pressed firmly onto the intermediate edge of the system/drainage nipples (Fig. 5). By screwing the quick coupling attachment (Fig. 4) into the nipple attachment (Fig. 5), the seal is pressed onto the clamped front part of the system/drain nipple and an airtight and watertight connection is created (Fig. 6). The quick coupling is attached to this system/drain nipple connection (Fig. 6). Auxiliary device for carrying out leak tests on pipes in the areas of sanitary, heating and similar pipe systems according to claim 1, characterized in that (drawings 9 and 10) a hose (13) of approximately 2 m in length, 4-8 mm inside diameter, which has a quick coupling at each end, is plugged onto the corresponding housing connection nipple (8E) and the other end with this quick coupling is plugged onto the connection adapter of the pipe areas of sanitary and heating pipes to be tested. A second hose of the same type is plugged onto a further housing connection nipple (8H), and the other end is also plugged onto an adapter (22) of a water extraction point (A).
Another test procedure (drawing 10) is the connection to be made via the connection nipple (8B) on the housing for air pump operation. The air pump, which is equipped with a hose (13) and quick coupling (14), is plugged into this connection (8B). The hose connection from the corresponding housing connection nipple (8A) to the above-mentioned connection adapter of the line areas is made in the same way via hose (13) with quick couplings (14). Auxiliary device for emptying pipes using compressed air/air in sanitary, heating and similar pipe systems, according to claim 1, characterized in that (drawing 11) an approximately 2 m long, as already mentioned above, Fassbender / Kisters described hose (13) is pierced with a quick coupling (14) and the other end with the quick coupling is plugged onto the pipe section to be emptied - adapter (23). This hose (13) is plugged as a second connection onto the corresponding housing connection (8B) for connecting the air pump equipped with hose (13) and quick coupling (14). Auxiliary device for pressure monitoring and pressure regulation of water-carrying hose or pipe connections according to claim 1, characterized (drawing 12) in that the auxiliary and testing device is connected as an intermediate station for loose and fixed water-carrying pipes. A hose with a quick coupling (14) is attached to the housing connection nipple (8E), which in turn is connected to the end line (26) of the above-mentioned water-carrying pipes. The housing connection nipple (8H) is connected to the further pipe or hose system with a hose and quick couplings (14). The water flow pressure is monitored on the auxiliary device (5) and, if necessary, regulated by the shut-off valve (6) installed on the device. At the same time, the device serves as a safety device, because the backflow preventer (7) built into the device prevents water from flowing back.