Question 1

Can alpex pipe connections be used for concealed installations or under screed?

Accepted Answer

The alpex pipe and system connections for drinking water and heating installations are suited for concealed installations or installations under screed without any concerns. For detailed information, please refer to DIN 1988 / DIN EN 806.

Question 2

Is it necessary to insulate alpex multilayer composite pipes for cold water lines against condensation water?

Accepted Answer

Yes, insulation of cold drinking water pipes is required according to DIN 1988-200 tab. 8 and 9 in order to prevent condensation and to protect drinking water from warming-up due to elevated ambient temperatures. Pipes that come into contact with the structure (floating, screed, etc.) must be protected with at least one layer of insulation (pipe with protective sheathing). Sound insulation according to DIN 4109 must be provided. Appropriate insulation is recommended for prevention of cracking and flow noise.

Question 3

Are alpex installations possible with de-mineralised water?

Accepted Answer

No, since the installation of multilayer composite pipe systems usually includes brass fittings. Brass fittings may be affected by corrosion damage in connection with de-mineralised water (aggressive).

Question 4

Are alpex installations possible with softened water?

Accepted Answer

Yes, alpex installations (pipe + PPSU + brass) can be operated with softened water of up to 0°dH. The limit value for sodium ions of 200 mg/l may not be exceeded during softening. For reasons of corrosion protection, it is recommend that the water hardness level should be of at least 3°dH. If drinking water is intended for human consumption, water hardness of 4 to 8°dH is ideal.

Question 5

Can I use antifreeze agents with alpex multilayer composite pipes?

Accepted Answer

The alpex multilayer composite pipes can be used with antifreeze agents at temperatures between -20 °C and +95 °C (max. permissible continuous operating temperature) and a maximum constant operating pressure of 10 bar. However, make sure that the antifreeze agent used has no impact on polyethylene, EPDM, PPSU and brass. For reasons of corrosion protection, minimum concentration shall not fall below 25 % vol.

Question 6

Can I use alpex multilayer composite pipe systems in stables?

Accepted Answer

The alpex multilayer composite pipe system is limitedly resistant to ammonia content in the atmosphere that often occurs in stables. Corresponding alpex fittings and connectors, however, are exposed to a high risk of corrosion under these conditions. The installation should therefore be of concealed type. If it is not possible, fittings and connectors must be protected by means of appropriate measures such as wrapping in a corrosion protection tape (e.g. DENSO tape, KEBU tape) or a vapour-tight insulation (e.g. Armaflex). We recommend that the alpex system should be protected with a vapour-tight insulation.

Question 7

Are alpex multilayer composite pipes free from plasticisers and CFC?

Accepted Answer

Yes, alpex composite pipes are free from plasticisers and CFC, since pure polyethylene (PE) is used as a material during production. Thus, there are no materials that emit gases as is the case with e.g. PVC.

Question 8

How do I pressure test drinking water installations with alpex?

Accepted Answer

Pressure testing must be carried out according to DIN EN 806-4 and the ZVSHK advisory leaflet "Leak Testing of Drinking Water Installations" (Dichtprüfungen von Trinkwasserinstallationen). Detailed requirements of pressure testing must be complied with depending on the test medium (water or air); please refer to pressure test reports water / air available in the download centre.

Question 9

What applications can I use alpex multilayer composite pipes for?

Accepted Answer

The alpex multilayer composite pipes can be used for various media, such as drinking water, heating, stormwater and compressed air. Please refer to the alpex Technical information for more details.

Question 10

Up to which max. heat capacity can I connect alpex pipes?

Accepted Answer

Please refer to the Technical information for detailed alpex performance and pressure loss tables for heating applications. We recommend that the following standard flow values are not exceeded when designing the pipework system:
Radiator connection pipe ≤ 0.3 m/s
Radiator distribution pipes ≤ 0.5 m/s
Heating riser and basement pipes ≤ 1.0 m/s
The max. pressure loss in the pipe must not exceed 2 mbar/m.

Question 11

Who designs and implements my drinking water installations?

Accepted Answer

Professional design and hygienically impeccable installation must be made by experts only, otherwise any warranty claims become void. Additionally, health and safety risks during operation may be the consequence. Drinking water pipes must therefore be installed with expert knowledge and tested carefully and thoroughly before putting into operation.

Question 12

Are the materials used in my drinking water installation safe to use?

Accepted Answer

The materials used in alpex multilayer composite pipe systems meet highest requirements for drinking water installations and have been certified and approved according to DVGW. Both the alpex composite pipe designs with internally cross-linked PE-X materials and a butt-welded aluminium core (PE-X / AL / PE) as well as the corresponding fittings made of PPSU or dezincification-resistant brass for threads are physiologically safe and of food quality, i.e. the material has no adverse effects on the human body. Hygiene and microbiological testing is an integral part of the DVGW type approval certificate and is particularly stringent with plastic pipe systems. The materials applied comply with the currently valid list of approved materials of the German Environment Agency (UBA) and the Drinking Water Ordinance.

Question 13

How can I avoid legionella development in drinking water?

Accepted Answer

At water temperatures between 25 and 55 degrees, legionella and bacteria can multiply and occur in increased concentrations. These die off again at water temperatures above 70 degrees. For this reason, the temperature of warm water in the pipe system shall be at least 55 degrees, and that of cold water shall not exceed 25 degrees. Along with the temperature, stagnating water also favours bacteria proliferation; therefore, permanent flow of water through the drinking water installation shall be ensured. Avoid dead pipes and water stagnation. Regular water exchange at tapping points shall be executed every 72 hours at the latest. Regular water exchange after 7 days at the latest is part of proper and intended operation of a drinking water installation.

Question 14

Why not just open a window?

Accepted Answer

To ensure sufficient, hygienically sound air exchange, some five-minute-long airing out in intervals of about every two hours is needed. Permanently tilted windows do not constitute a proper solution for reasons of fluctuating temperatures, draughts from outside, and significant energy loss.
profi-air heat recovery ventilation boasts decisive advantages:
Constant supply of fresh air
No noise pollution
No exposure to humidity / mould
Filtration of dust and allergens
No odour pollution

Question 15

Can I open windows while using a ventilation system?

Accepted Answer

Of course, you can open your windows with a ventilation system running. This is, however, not needed to provide ventilation, since this is done by the ventilation system in an energy-saving, hygienic, draught-free way without noise nuisance.

Question 16

How does heat recovery ventilation (HRV) affect my energy consumption?

Accepted Answer

The energy consumption drops significantly with the heat recovery ventilation system installed. Efficient profi-air ventilation units boast a high degree of heat recovery of up to 95 %.

Question 17

Does heat recovery ventilation help me save on my heating bill?

Accepted Answer

Depending on the type of building and usage pattern, heating costs can be reduced by up to 30 to 50 %.

Question 18

Does the ventilation system swirl up dust?

Accepted Answer

Generally, a ventilation system produces far less dust than open windows, since the ventilation system filters the fresh air before it enters the building. Existing dust is not swirled up, since the constant flow of air and the air rate of a ventilation system are too low.

Question 19

Does heat recovery ventilation (HRV) cause a draught or noise?

Accepted Answer

Professional design and installation as well as the compliance with certain stipulated air rates generally prevent draughts and noise. The star-shaped installation of the profi-air air distribution system prevents noise transmission between rooms.

Question 20

Can depositions of substances accumulate in the ventilation ducts making the operation of the HRV system hygienically unsafe?

Accepted Answer

Virtually no particles enter the ventilation system through supply and extract air filters. In addition to this, the profi-air pipe system with its smooth, antibacterial and antistatic inner surface ensures hygienic safety – which is also confirmed by the HY certification of the profi-air pipes.

Question 21

What needs to be observed if both a fireplace and a ventilation system are installed in a building?

Accepted Answer

Wherever room air-dependent fireplaces and ventilation units are operated at the same time, special safety equipment is required to make sure that no dangerous negative pressure develops, and that sufficient external air supply is provided. It is recommended that the district master chimney sweep should be contacted as early as during the planning phase.

Question 22

Is it possible to install FBY pipes in concrete?

Accepted Answer

No. Here, clear standard-related statements concerning mechanical properties of the pipes are provided. According to IEC, only our FFKuS-EM-F, or products with similar or better properties can be used.

Question 23

Accepted Answer

Question 24

Does the range of products by FRÄNKISCHE include an uncoil system for conduits?

Accepted Answer

No. To this end, high-quality products by Lübbering are available.
www.luebbering.de

Question 25

What does "pliable, self recovering" stand for?

Accepted Answer

Pliable, self recovering pipes are classified 3 in the fifth digit, i. e. the pipes have a maximum deformation of 50% (based on the outside diameter). This permissible deformation reduces the inside diameter by 72%, which means that the inside diameter of a size 25 pipe shrinks from 17.9 mm to 5.0 mm.

Question 26

What surfaces can the ReMo click rail be mounted on?

Accepted Answer

The surface for mounting should be dry and dust-free. The temperature should be between 18 °C and 35 °C. The rail has an immediate holding force, its adhesive force, however, is not designed for continuous loads.

Question 27

Heat recovery ventilation – do I really need it?

Accepted Answer

Homes and buildings are becoming increasingly more airtight to save valuable energy. It is, therefore, all the more important to ensure a regular air exchange in order to prevent consequential excessive humidity and mould growth, as well as the decrease in the resale value of the building resulting from this. As opposed to airing by opening the window with the heat escaping through it, the HRV system is energy-efficient due to the integrated heat exchanger, and - what is more - it prevents fine dust and allergens from entering. Our profi-air makes your home a cosy place to live.

Question 28

Why does constant air exchange convey cosy comfort?

Accepted Answer

Stale, moist and polluted air provokes weariness and headaches. Excessive carbon dioxide content robs the human system of energy, disturbs the relaxation phase and has a negative impact on our sleep. An average German spends eight hours a night in bed. The CO2 amount in a bedroom occupied by two people exceeds the limit value stipulated by the Federal Ministry of Health already after approx. two hours. profi-air heat recovery ventilation is there to ensure a constantly healthy and relaxing living climate 24 hours a day. Filtered air adjusted to a pleasant temperature creates a comfortable climate in all rooms.

Question 29

Conduit installation in explosion hazard area, what conduit can be used here?

Accepted Answer

All steel and metal conduits - these, however, must be included in the equipotential bonding. Straight length plastic conduits may not be used

Question 30

Are there any standards/regulations stipulating that zero halogen installation must be ensured?

Accepted Answer

There are no normative specifications. The areas are determined by architects/designers.

Question 31

Where can I find fire safety assessments and installation instructions for FFKu-ReMo click?

Accepted Answer

For both downloads, please refer to the FFKu ReMo click product catalogue.

Question 32

How high is the conduit fill rate upon initial installation, for Kabuflex (30 %), for FFKuS-EM-F (60 %)? In which standard can I find it?

Accepted Answer

General recommendation is 30 %, though max. 50 % acc. to DIN VDE 0100-520, supplementary sheet 1, section 521.6.1 d).

Question 33

Which corrugated conduits can be combined with the FIPLOCK® ONE threaded connector?

Accepted Answer

The FIPLOCK ONE pre-assembled threaded connectors allow a reliable connection to all FIPLOCK standard corrugated conduits with fine and coarse profile of NW07–NW48. The threaded connectors are not suited for connections to the Softwave and high-corrugation profiles. We offer an individual range of accessories including threaded connectors for our two-piece FIPSPLIT corrugated conduits.

Question 34

For which applications are FIPSYSTEMS® products suited?

Accepted Answer

With its FIPSYSTEMS product line, FRÄNKISCHE Industrial Pipes provides solutions to various challenges in the field of industrial cable protection. In addition to the fields of industry, chemistry, and robotics, the applications also include railway/transport, track applications, renewable energies, shipbuilding, and telecommunications. However, we will also find the right solution for requirements that cannot be clearly assigned to any of these applications.

Question 35

At which trade fairs do you exhibit your products for industrial cable protection?

Accepted Answer

FRÄNKISCHE Industrial Pipes has exhibited its FIPSYSTEMS product range at the SPS IPC Drives trade fair in Nuremberg for some years. The annual trade fair is always a fixed date in our trade fair planning. Another integral part is the Innotrans leading railway trade fair in Berlin, which takes place every 2 years. However, we also attend other industry-relevant trade fairs, also outside of Germany. Please check the dates section of our website to learn which trade fairs we will attend.

Question 36

Which approvals apply to FIPLOCK® ONE products?

Accepted Answer

The products of the FIPLOCK ONE product range hold the following approvals and certifications:
REACH: Registration, Evaluation, Authorization, and Restriction of Chemicals
ROHS: Restriction of Hazardous Substances Directive
CE: Communautés Européennes
ADR: Approval for hazardous materials transportation
EN 45545-2: Standard for railway technology
IP protection classes in accordance with EN 60529: IP66, IP67, IP68, IP69F
UL Recognition
ASTM: American Society for Testing and Materials

Question 37

What does “Full IP Protection” mean?

Accepted Answer

All designs of the FIPLOCK ONE product group allow reliable connections with the highest possible IP protection characteristic (Full IP Protection!), since FIPLOCK ONE can be used for the IP protection classes 66, 67, 68, and 69.
 
The first digit (6) stands for the protection against ingress of solids and dust. The respective specification depends on the selected digit:
0 - no protection
1 - Protected against solid objects over 50mm e.g. hands, large tools.
2 - Protected against solid objects over 12.5mm e.g. hands, large tools.
3 - Protected against solid objects over 2.5mm e.g. wire, small tools.
4 - Protected against solid objects over 1.0mm e.g. wires.
5 - Limited protection against dust ingress. (no harmful deposit)
6 - Totally protected against dust ingress.
 
The second digit (6, 7, 8, or 9), on the other hand, stands for the protection against water. There are nine different specifications:
0 - no protection
1 - Protected against vertically falling drops of water or condensation.
2 - Protected against falling drops of water, if the case is disposed up to 15 from vertical.
3 - Protected against sprays of water from any direction, even if the case is disposed up to 60 from vertical.
4 - Protected against splash water from any direction.
5 - Protected against low pressure water jets from any direction. Limited ingress permitted.
6 - Protected against high pressure water jets from any direction. Limited ingress permitted.
7 - Protected against short periods of immersion in water.
8 - Protected against long, durable periods of immersion in water. 
9 - Protected against close-range high pressure, high temperature spray downs.

Question 38

Where can I find technical information and data sheets for FIPSYSTEMS® products?

Accepted Answer

You can find all the technical information as well as data sheets and other downloads in our download area.

Question 39

Which materials are used in the field of medium-conducting systems for industrial applications?

Accepted Answer

Depending on the expected influences and stresses, our solution systems are made of a wide range of materials such as PE, PP, PA6, PA66, PA666, PA610, PA612, PA11, PA12, PVDF TPE, ETFE, MFA, PFA, PEEK, and derivatives.

Question 40

What are the industrial applications of medium-conducting systems?

Accepted Answer

Is it necessary to distribute and utilize liquids, air, or gases? This is where our medium-conducting systems come into play. From vacuum-cleaner tubes to siphon hoses for sanitary equipment – we offer innovative solutions and systems for each and every application. And yet, our products easily meet all the specific requirements such as tightness, hygiene, or acid resistance.
Our range of products offers solutions for ventilation and air-conditioning technology, siphon hoses for sanitary equipment, corrugated pipes for swimming pool applications, innovative solutions for medical engineering, solutions for the home appliances industry, corrugated conduits for geothermal and solar energy systems as well as solutions for construction and agricultural machinery. In addition, we offer customer-specific developments in close cooperation with our customers.

Question 41

Why should plastic conduit systems be used in construction and agricultural machinery?

Accepted Answer

Because they have a lower weight than metal pipes which makes them much more flexible. Our plastic systems guarantee space-optimized installations, can be assembled and disassembled several times, can be connected to a variety of components due to our wide range of connectors and are also more cost-efficient.

Question 42

Do you offer only corrugated conduits in the field of medium-conducting systems for industrial applications?

Accepted Answer

No. Our range of products includes corrugated conduits, smooth conduits, and completely pre-assembled corrugated conduit systems. We also offer the appropriate range of matching accessories such as space-saving connectors, a selection of couplings or sleeves, O-rings as well as elbows, and hose supports.

Question 43

How do I find the right contact for my concern in the field of medium-conducting systems for industrial applications?

Accepted Answer

Please use the contact search to find the right contact for your specific concerns or product requirements. Our sales staff will be happy to help you with your individual inquiry.

Question 44

“Complete solutions from a single source” – what does that mean?

Accepted Answer

The strength of FRÄNKISCHE Industrial Pipes is the extensive product range comprising connectors, flexible corrugated conduits, blow-molded connection elements, customer-specific distributors, and functional components as well as products for abrasion protection. These products are not only available worldwide, we also offer you fully pre-assembled systems.

Question 45

Are the products also suitable for electric and hybrid vehicles?

Accepted Answer

Absolutely. We actively approach the challenges and requirements of e-mobility and look into the future in a solution-oriented way. The mobility of the future has played an important role in FRÄNKISCHE Industrial Pipes for many years. We do not take your safety precautions lightly and support you with our reliable, individually tailored medium-conducting systems as well as with our different protection systems for high-voltage applications and line systems used in electric and hybrid vehicles. The versatile product range of FRÄNKISCHE Industrial Pipes includes customer-specific fluid systems, e.g., effective systems for battery and component temperature control, appropriate protection systems in orange signal color for the identification of high-voltage lines as well as a matching range of accessories. In addition, we offer different abrasion and impact protection products minimizing sparks and thus the risk of fire in case of a crash.

Question 46

At which trade fairs do you exhibit your products for the automotive industry?

Accepted Answer

For some years, FRÄNKISCHE Industrial Pipes has exhibited at the International Suppliers Fair (IZB) in Wolfsburg, the leading trade fair for the automotive and automotive supplier industry. This trade fair, which takes place every two years, is always a fixed date in our trade fair planning. However, we also exhibit at other trade fairs in the automotive field, for example, at the tanktech or emove 360° trade fairs. Please check the dates section of our website to learn which trade fairs we will attend.

Question 47

In which areas is cable protection required in the automotive industry?

Accepted Answer

Leaking fluids and oils, strong vibrations as well as great heat generation – these are just some of a great number of stresses cables used in the automotive field have to cope with. Without corresponding protection, substantial cable damage may be the result – our complete systems are the right solution to this problem in vehicle manufacturing. Depending on the design, our products offer abrasion, heat, impact, or vibration protection. They also serve for cable routing and bundling. A matching range of accessories as well as customer-specific developments round off our range of products.

Question 48

Which documentation for cable protection in the automotive industry is there and where can I find it?

Accepted Answer

We have compiled three different catalogs with different focuses for you. Depending on the requirements, we provide catalogs for corrugated conduits and accessories, protective hoses and mats, or accessories. You can simply download and save the catalogs as .PDF files from our download section. You will also find additional flyers and brochures dealing with special products there. We will also be happy to send you printed copies of our documents. Please contact your contact person in the company in this regard.

Question 49

What are the advantages of 48-volt on-board electrical systems?

Accepted Answer

An ever-increasing number of electronically controlled systems such as climate control units, safety assistants, or communication systems, coupled with the demand to reduce CO2 emissions, take 12-volt on-board electrical systems to their limits. A second voltage level can be of advantage, since it allows increasing the power volume by more than four times. However, increasing the on-board electrical system voltage to 48 volts may cause some new hazards such as the emergence of overvoltages and electric arcs.
FRÄNKISCHE Industrial Pipes has adapted its products to the new safety aspects of the 48-volt technology and had them tested by accredited testing bodies. Depending on the requirements, corrugated tubes, protective hoses, and mats made of a great variety of materials provide protection against abrasion, crash effects, high temperatures, or even electric influences.

Question 50

Where are medium-conducting systems used in the automotive industry?

Accepted Answer

The applications of medium-conducting systems in the automotive industry are extremely diverse: e.g., in and at the fuel tank, for ventilation systems, windshield washer systems, and headlight washer systems. From a simple medium-conducting line to a completely assembled unit of the most varied complexity – we provide it all. It goes without saying that high-quality systems guarantee reliable transport of all kinds of liquids – no matter how challenging the circumstances are. Our range of products includes solutions for air intake ducts, vacuum systems, corrugated tubes for cooling systems, brake pressure lines, battery ventilation, drainage systems, fuel systems, ventilation systems, windshield and headlight washer systems as well as special solutions.

Question 51

I cannot find a catalog with products in the field of medium-conducting systems – is there one?

Accepted Answer

No, unfortunately, there is no catalog with an overview of our products in this area. This is mainly due to the fact that these products are specifically designed upon customer request and often developed and adapted together with the customer. Our sales department is your competent partner for individual requests. Although there is no catalog, our download area provides some product descriptions and brochures on different products.

Question 52

What does thermal management in electromobility mean?

Accepted Answer

The life of the highly sensitive batteries in electric and hybrid vehicles depends crucially on a constant operating temperature between +15 °C and +35 °C. To maintain this temperature range, FRÄNKISCHE Industrial Pipes develops and manufactures battery temperature control systems according to customer requirements. Lithium-ion batteries used in electromobility have an efficiency of below 100 % – the rest is emitted as heat. For batteries to operate for at least ten years without impairment, they must not be exposed to heat or extreme cold. Hence, if batteries are cooled down or heated up appropriately, their performance does not decrease and there is no damage as a result of too high or too low temperatures. This fundamental task of thermal management implies a great deal of development effort and inventive innovation spirit. Our result is a temperature control system ideally matching the battery and efficiently ensuring long service life of batteries in electric vehicles due to its flexible concept.

Question 53

Up to what temperature can conduits (e.g. FFKuS-EM-F, FBY-EL-F) be installed?

Accepted Answer

All conduits of the FRÄNKISCHE product range have been tested according to DIN-EN 61386, and can be installed and used up to the temperatures specified in the data sheet, e.g. up to -25 °C for FFKuS-EM-F.

Question 54

Are there branches and/or reducers available for Kabuflex?

Accepted Answer

No, our range of products does not include branches or reducers for Kabuflex. Pull shafts can be used to branch out Kabuflex; for some nominal diameters it is sometimes also possible to use a branch from the Drainage area. This solution, however, is not technically intended.

Question 55

Is Kabuflex suitable for jetting of cables?

Accepted Answer

Pressure up to 12 bar can develop during jetting; the Kabuflex product is not suitable for that. The pipe with a coupling connection has been tested for leak-tightness up to 0.5 bar.

Question 56

What drill shall be used for the socket of a multi-media conduit?

Accepted Answer

The holes for the outlet sockets are to be drilled with a commercially available 60 mm hole saw.

Question 57

What prevents the viruses from entering the building?

Accepted Answer

Some of you are sure to be wondering whether or not ventilation units can spread or carry viruses and bacteria. The answer is NO.
Viruses mainly spread through droplets they get attached to. If the right filters are installed, the virus-carrying droplets cannot enter the rooms through the outside pipes and supply pipes.

Question 58

What prevents the viruses from spreading inside the living quarters through the HRV systems?

Accepted Answer

The supply air and extract air ducts are strictly separated from each other. Due to this, it is nearly impossible that the extract air that may possibly contain droplets can be transported from one living area to other rooms via ventilation lines.

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