PTFE hoses for the highest process requirements

2

Welcome

Since our foundation in 1929, we have manufac- tured hose assemblies for demanding applications. As an owner-managed company in the fourth generation, we have a vast amount of experience, and the name has become a synonym for industrial hose assemblies meeting the most demanding requirements.

We have also made a decisive contribution to our industry. Through the continuous development of innovative products and competent advice to our customers, we have repeatedly developed new areas of application for PTFE hose assemblies. Today, PTFE hose assemblies are in use in all critical processes in the chemical, foodstuffs, and pharmaceutical industries.

With each of our products, we meet the most stringent quality standards. In order to achieve this, we produce hose assemblies in Germany, in our state-of-the-art factory in Neu-münster. This is the only way to ensure that we have full control of all processes and to be sure we can produce large quantities to the highest standards, even at very short notice.

We do not rest on our laurels. Our engineers con-tinue to develop our products on a daily basis and due to our involvement in standardisation commit-tees on a national and international level, we con-stantly provide the industry with new impulses.

On the following pages, we present to you the most recent results of our work:

PTFE hose assemblies, which became what they are today based on 85 years of experience and innovation — a guarantee the highest quality.

Yours sincerely,Philipp Markert

Managing director and owner of the Markert Group

Otto Markert & Sohn GmbH

Alfons Markert + Co. GmbH

3

Content

Page

Hose tube 5

Reinforcement 9

Hose covers 10

PTFE convoluted hose type C, CA 14

PTFE smooth hose type G, GA, GC 16

External protection 21

Fittings 25

Lining and coating 27

Special hoses 30

Technical information 32

Correct use 35

5

Hose tube

The seamlessly-extruded PTFE material we use consists of pure Teflon® T-62 by DuPont and is resistant to almost all chemical media. Our PTFE is free from dual-use substances, supplements and aromas.

The special non-stick properties of the PTFE allow for easy cleaning and convey almost all media. The smooth surface of the tube prevents accumulation of dirt or bacteria. Depending on the hose design and operating conditions, it can withstand temperatures of –60°C to +260°C.

The PTFE liners are available in a white (virginal and insulating) or black (antistatic/electrically conductive according to ISO 8031 [electrostatic resistance 106Ω]) version. The additional use of a stainless steel spiral (vacuum spiral) gives the convoluted hose type C, CA a high resistance to vacuum and kinking. For the smooth hose type GA, GC, these properties are a manufacturing-related standard.

Convoluted hose type C, CA (available with/without stainless steel spiral)• type C, white (virginal)• type CA, black (antistatic)The convoluted hose type C, CA is a universal suction and pressure hoses used in applications requiring a high level of flexibility.

Smooth hose type GA,GC(with fixed stainless steel spiral)• type GA, black (antistatic)• type GC, white (virginal)The smooth hose type GA, GC is extremely flex-ible and yet smooth. The manufacturing-related stainless steel spiral gives the smooth hose a high resistance to vacuum and kinking.

Smooth hose type G (not shown)• type G (virginal)The smooth hose type G is used in applications where no irregularities in the hose tube are desired or requested.

Technical specifications are subject to change without notice.

7PTFE convoluted hose with different reinforcement variants (B1, B3, B1Gum).

9

Reinforcement

All braid types meet the required operating conditions, such as pressure or tem-perature, as well as chemical and operational requirements.

Stainless steel braidB1

The stainless steel braid protects the internal PTFE liner, improves flexibility while ensuring the pressure resistance of the hose at the same time. We exclusively use high-quality stainless steel grades such as 1.4301. The braid is abrasion resistant.

Modified synthetic braidB3

So far unique in the market, the modified braid is characterised by extremely high temperature resistance and extreme tear resistance. It resists operating pressures up to 32 bar without any problems and is thus significantly more resilient than conventional synthetic braids. Its tempera-ture resistance ranges up to 230°C. In addition, the modified synthetic braid is TRbF-131/2- compliant. Interwoven special metal filaments make it electrically conductive and suitable for use in explosive atmospheres. The B3 braid has the same chemical resistance as polyethersulfone (PES).

Polypropylene braidB6

The braid of specially-developed monofilaments allows for high operating pressures while the low net weight enables easy handling. The polypro-pylene braid is not TRbF-compliant.


10

Hose covers

In addition with the standard versions, we offer further options as hose covers.

Stainless steel braid with rubberised coverB1Gum

Many industrial applications require increased abrasion protection as well as protection against injury while handling hose lines. Our rubberised stainless steel braid is the ideal solution for this area of application. In contrast to conven-tional systems in the market, our CR material is TRbF-131/2-compliant, thus self-extinguishing, antistatic and easy to clean.

Stainless steel braid with silicone coverB1Sil

A smooth white silicone cover was developed particularly for pharmaceutical applications, which makes cleaning of the hose significantly easier. In addition, it provides mechanical and thermal protection for users or equipment and can be used up to 180°C.

Special pyro heat protectionPY

Specially developed for high temperature ap-plications, this protective cover is suitable for permanent exposure at 260°C and short-term ex-posure at more than 800°C (exposure to flame). It protects the hose against high radiant heat and thus ensures a long service life under extreme conditions. The material is resistant to industrial chemicals and hydraulic oils. In addition, the heat protection is also suitable for reducing the external hose temperature in the case of hot media to ensure safe handling of the hose assembly.


12 PTFE smooth hose with stainless steel braid and Camlock quick coupling.

14

PTFE convoluted hosetype C, CA

The convoluted hose is highly flexible and and designed for use as a univer-sal suction and pressure hose for the chemical, pharmaceutical, and foodstuffs industries. Its tube is available in the variants virginal and black (electrically conductive) and consists of convo-luted and seamlessly extruded Teflon® T-62 by DuPont. The PTFE liner is temperature-resistant from –60°C to +260°C and resistant to almost all chemicals.*

The even convolution of the tube provides a higher level of flexibility and resistance to kink-ing compared to conventional products. Thanks to its spiral, the convoluted hose is vacuum- stable and the specially-developed braid types ensure optimum pressure resistance and excel-lent bending behaviour. Our rubberised hose covers comply with the technical regulations for flammable liquids (TRbF 131/2). All PTFE convoluted hoses are FDA-compliant according to 21 CFR § 177.1550.

All benefits at a glance:

• extremely resistant to: – chemical impacts – temperatures from –60°C to +260°C – weather conditions and ageing processes

• low friction coefficient (no stick-slip effect)• particularly anti-adhesive• water-repellent material• minimum thermal conductivity• flame-retardant (UL 94 [for 1.5 mm]: VO, LOI index: 95%)• no risk to health (FDA- and BfR-compliant)• suitable for vacuum operation• available in two versions: – C, with high electric insulation capability – CA, antistatic

*With the exception of halogens.

Item numberNominal

diameter*Max. operating pressure in bar (20°C)/bending radius in mm

Inner Ø B1 braid Bending radius B3 braid Bending radius B6 braid Bending radius B1Gum cover Bending radius B1Sil cover Bending radius

mm bar (20°C) mm bar (20°C) mm bar (20°C) mm bar (20°C) mm bar (20°C) mm

C006–CA006 6/6 35 25 * * * * * * * *

C010–CA010 10/10 35 25 * * * * * * * *

C013–CA013 12/12 55 25 25 50 10 50 55 25 55 25

C016–CA016 16/16 55 35 25 65 10 65 55 35 55 35

C020–CA020 20/20 55 55 25 70 10 70 55 55 55 55

C025–CA025 25/25 40 85 30 85 10 85 40 85 40 85

C032–CA032 32/32 40 100 24 100 10 100 40 100 40 100

C040–CA040 40/37 35 120 24 120 10 120 35 120 35 120

C050–CA050 50/50 25 165 16 165 10 165 25 165 25 165

C065–CA065 65/63 16 230 10 230 7 230 * * * *

C080–CA080 80/74 14 260 10 260 6 260 * * * *

C100–CA100 100/95 10 300 * * * * * * * *

C150–CA150 150/150 6 520 * * * * * * * *


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* Other nominal diameters on request.Wall thickness according to standard DIN 26054.

Item numberNominal




C006–CA006 6/6 35 25 * * * * * * * *

C010–CA010 10/10 35 25 * * * * * * * *

C013–CA013 12/12 55 25 25 50 10 50 55 25 55 25

C016–CA016 16/16 55 35 25 65 10 65 55 35 55 35

C020–CA020 20/20 55 55 25 70 10 70 55 55 55 55

C025–CA025 25/25 40 85 30 85 10 85 40 85 40 85

C032–CA032 32/32 40 100 24 100 10 100 40 100 40 100

C040–CA040 40/37 35 120 24 120 10 120 35 120 35 120

C050–CA050 50/50 25 165 16 165 10 165 25 165 25 165

C065–CA065 65/63 16 230 10 230 7 230 * * * *

C080–CA080 80/74 14 260 10 260 6 260 * * * *

C100–CA100 100/95 10 300 * * * * * * * *

C150–CA150 150/150 6 520 * * * * * * * *

16

PTFE smooth hosetype G, GA, GC

The PTFE smooth hose is the systematic further development of the PTFE convoluted hose. Its smooth hose tube provides a particularly low flow resistance and makes cleaning very easy. Similarly, the PTFE liner meets the most demanding requirements of the foodstuffs and pharmaceutical industries. The tube of the smooth hose also consists of temperature-resistant and seamlessly-extruded Teflon® T-62 by DuPont in the variants virginal or black (electrically conductive) and is resistant to almost all chemicals.*

Constant wall thicknesses throughout ensures a particularly long service life, while the spiral guarantees extremely high vacuum stability and superior resistance to kinking. The product is FDA-compliant according to 21 CFR § 177.1550.

All benefits at a glance:

• extremely resistant to: – chemical impacts – temperatures from –60°C to +260°C – weather conditions and ageing processes

• very easy to clean• minimum flow resistance• low friction coefficient (no stick-slip effect)• particularly anti-adhesive• water-repellent material• minimum thermal conductivity• flame-retardant (UL 94 [for 1.5 mm]: VO, LOI index: 95%)• no risk to health (FDA- and BfR-compliant)• suitable for vacuum operation

• available in three versions: – GC, with high electric insulation capability + vacuum spiral – GA, antistatic + vacuum spiral – G, with high electric insulation capability

*With the exception of halogens.

Item numberNominal




G05 5 260 65 * * * * * * * *

G06 6 220 80 * * * * * * 220 75

G08 8 205 105 * * * * * * 205 100

G10 10 180 135 * * 10 * * * 180 130

G12 12 160 150 * * 10 * * * 160 150

GA013–GC013 12/12 50 40 40 40 10 40 50 60 50 60

GA016–GC016/G016 16/16 50/110 45/180 35 45 10 45 50 65 50/110 65/175

GA020–GC020/G020 20/20 45/100 50/205 20 50 10 50 50 80 50/100 80/200

GA025–GC025/G025 25/25 40/80 70/305 16 70 10 70 40 120 40/80 120/305

GA032–GC032 32/32 45 85 16 85 10 85 45 155 40 155

GA040–GC040 40/40 40 100 16 100 10 100 40 200 40 200

GA050–GC050 50/50 25 140 16 140 10 140 25 250 25 250


17

Item numberNominal




G05 5 260 65 * * * * * * * *

G06 6 220 80 * * * * * * 220 75

G08 8 205 105 * * * * * * 205 100

G10 10 180 135 * * 10 * * * 180 130

G12 12 160 150 * * 10 * * * 160 150

GA013–GC013 12/12 50 40 40 40 10 40 50 60 50 60

GA016–GC016/G016 16/16 50/110 45/180 35 45 10 45 50 65 50/110 65/175

GA020–GC020/G020 20/20 45/100 50/205 20 50 10 50 50 80 50/100 80/200

GA025–GC025/G025 25/25 40/80 70/305 16 70 10 70 40 120 40/80 120/305

GA032–GC032 32/32 45 85 16 85 10 85 45 155 40 155

GA040–GC040 40/40 40 100 16 100 10 100 40 200 40 200

GA050–GC050 50/50 25 140 16 140 10 140 25 250 25 250

* Other nominal diameters on request.

18 PTFE hose assemblies with rubber kink protection and lined Camlock quick coupling.

19

PTFE hose lines with rubber kink protection and flange with collar.

20 Technical specifications are subject to change without notice.

21

External protection

To further increase the long service life of the resistant PTFE hose assemblies, we offer the following accessories.

Agraff protection hoseAGRAFF

On request, we equip the entire hose assem-bly with a highly-resistant stainless steel Agraff protection hose. This offers reliable protection against severe mechanical impacts.

Rubber kink protectionGKS

The rubber kink protection newly developed by our engineers significantly improves the life span of hose assemblies. It reinforces the areas subjected to particularly high loads behind the bonding region and thus reduces the risk of kinking. Thanks to its electric conductivity, the kink protection can also be used in explosive atmospheres.

Abrasion protection spiralFRAS

For high levels of mechanical stress, we recom-mend our electrically-conductive protection spirals. These are available in stain-less steel or synthetic variants. The stainless steel protection spiral resists temperatures from –60°C to +500°C, while the synthetic protection spiral is suitable for use from –60°C to +90°C.

23PTFE smooth hose with reinforcement variant B1Sil and flanged dairy coupling.

24

Safety clamp screw

couplings with aseptic clamp

connection according to

EN 14420

Order number Head size

mm

Material3

TCS13 34.0 SS

TCS19 34.0 SS

TCS25 50.5 SS

TCS32 50.5 SS

TCS38 50.5 SS

TCS50 64.0 SS

TCS65 91.0 SS

TCS75 106.0 SS

TCS100 119.0 SS

Safety clamp screw

couplings with aseptic

flange according to

EN 14420

Order number Flange size

mm

Material3

ASFB15A 59.0 SS

ASFB20A 64.0 SS

ASFB25A 70.0 SS

ASFB32A 76.0 SS

ASFB38A 82.0 SS

ASFB50A 94.0 SS

ASFB65A 113.0 SS

ASFB75A 133.0 SS

ASFB100A 159.0 SS

Safety clamp screw

couplings, aseptic pipe fit-

ting and lock nut according

to EN 14420

Order number Thread2 Material3

ASM15A Rd. 34 x 1/8" SS

ASM20A Rd. 44 x 1/6" SS

ASM25A Rd. 52 x 1/6" SS

ASM32A Rd. 58 x 1/6" SS

ASM38A Rd. 65 x 1/6" SS

ASM50A Rd. 78 x 1/6" SS

ASM65A Rd. 95 x 1/6" SS

ASM75A Rd. 110 x 1/4" SS

ASM100A Rd. 130 x 1/4" SS

Safety clamp screw

couplings, aseptic pipe fit-

ting and external thread

according to EN 14420

Order number Thread2 Material3

ASV15A Rd. 34 x 1/8" SS

ASV20A Rd. 44 x 1/6" SS

ASV25A Rd. 52 x 1/6" SS

ASV32A Rd. 58 x 1/6" SS

ASV38A Rd. 65 x 1/6" SS

ASV50A Rd. 78 x 1/6" SS

ASV65A Rd. 95 x 1/6" SS

ASV75A Rd. 110 x 1/4" SS

ASV100A Rd. 130 x 1/4" SS

25

Safety clamp screw

couplings with aseptic

flange according to

EN 14420

Order number Flange size

mm

Material3

ASFN15A 59.0 SS

ASFN20A 64.0 SS

ASFN25A 70.0 SS

ASFN32A 76.0 SS

ASFN38A 82.0 SS

ASFN50A 94.0 SS

ASFN65A 113.0 SS

ASFN75A 133.0 SS

ASFN100A 159.0 SS

Fittings

PTFE hoses can be assembled with all fittings. All couplings and fittings can be deliv-ered from stock in customary norms, standards, nominal diameters and materials. Examples: aseptic connections, flange connections, fittings with external thread or lock nut, dairy couplings, quick coupling systems. Special fittings on request. All fittings and couplings can be protected against aggressive media by means of an ad-ditional lining or coating of chemical-resistant synthetics, such as PTFE or E-CTFE (Halar®) (see page 26/27).

For additional versions, refer to our catalogue for couplings and fittings.


26

Flanged Tri-Clamp fitting. Flanged dairy coupling.

Lined Camlock male coupling.

27

Lining andcoating

To protect the fittings of the PTFE hose assemblies against aggressive materials, they are coated with synthetics such as E-CTFE (Halar®), lined with PTFE (alternatively PFA) or equipped with a PTFE hose and then flanged. Coating The wet sections of the fitting or coupling are coated with E-CTFE or a comparable synthetic. This provides effective corrosion protection against aggressive media. Lining A thick-walled PTFE profile form several milli- metres thick is incorporated in all areas of the fitting which are in contact with the medium.It protects the fitting or coupling against chemi-cal attacks by acids and bases. Due to its excep-tional chemical resistance, PTFE offers a safe and economic alternative to expensive special alloys, such as Hastelloy. Flange The PTFE hose is heated to become malleable. In this state, it is drawn through the fitting or coupling and flanged according to the fitting end, adjusting it to the fitting. The advantage of flanging is that no dead spots are formed in the transition area from the fitting to the hose where media residues might accumulate. As a conse-quence, the highest possible level of cleanliness is ensured in sensitive areas like the pharmaceu-tical and foodstuffs industries. The use of a fully-automated system for flanging of PTFE hoses also guarantees the manufacture of large quantities, while consistently maintaining high quality.


28 PTFE smooth hose with flanged Tri-Clamp fittings.

Special hose assemblies

30

On request, our engineers can also develop spe-cialist solutions for your individual requirements.

An example is the helix heating hose, which had been developed by us for the foodstuffs industry and has since been included in our standard product range. This spiral-shaped PTFE hose wound around the media-carrying hose enables the medium to be heated or cooled with steam, thermal oil, hot water or coolant.

Another variant comes with electric trace heating. A resistance wire is wound around the media- carrying hose and voltage is applied. The resulting heat is released to the medium. This variant is used when transporting liquid, viscous or molten media without loss of temperature.

All heating and cooling hoses consist of highly-flexible, spirally-convoluted PTFE with a stainless steel braid as reinforcement.

Properties:• very good bending flexibility• high heating capacity• small outer diameter• temperature range: –50°C to +180°C• helix heating hose for up to 16 bar of saturated

steam, resilient, not vacuum-proof• media-carrying hose for up to 16 bar of

saturated steam and vacuum-proof up to 0.6 bar• good mechanical properties, resistant

to vibrations• thermally-isolated external stainless steel braid• resistant to aging

Benefits:• long service life due to high-quality materials

and robust design• adapts flexibly to the relevant application• constant quality and configuration for spare

part deliveries


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32

Technical information

PTFE hoses are individually manufacturedfor the relevant application. To determine the hose structure in more detail, the operating conditions under which the hose is to be used are established in a first step. This includes:• the medium• the dimensions, such as length

and nominal diameter• the fittings• the operating pressure• the operating temperature• the bending radius• the conductivity• the mechanical forces The technical data regarding the operating condi-tions are very important for choosing the correct hose assembly. As an example, the illustrations show the dependence of the operating pressure on the temperature for PTFE hoses in different nominal diameters. The higher the operating temperature, the lower the maximum operating pressure. A detailed guideline for hose assembly enquiries can be found in the download area of our website at www.marsoflex.de.Of course, we are always happy to give advice over the phone.

33Technical specifications are subject to change without notice.

Do not overbend when hanging; instead use mountings such as hose gauges or rollers.

Do not kink hose lines in the bonding region. Avoid slanting tensile forces.

Hose lines should be designed to be of sufficient length. Avoid slanting tensile forces in the bonding.

Please do not twist the hose line when installing and avoid torsional forces.

34

Correct use

Place directions of motion at hose level.

To avoid damage or kinking please do not position or pull hose assemblies over sharp edges.

Allow ample space for hoses in motion. Please avoid kinking or contact with floors or walls.

Avoid fluctuations in bending strain.

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Hose and Coupling Technology

Alfons Markert + Co. GmbHGadelander Straße 13524539 Neumünster • Germany

Phone: +49 4321 8701-0Fax: +49 4321 8701-149Email: [email protected]: www.markert.de

PTFE hoses for the highest process requirements · 14 PTFE convoluted hose type C, CA The...

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