Chemical-resistant · Chemical-resistant

CP PTFE/GLASS-INOX 471 EC

ATEX-approved EC version of CP PTFE/GLASS-INOX 471 — electrically conductive (surface resistance <10⁶ Ω on PTFE film) and certified per ATEX 2014/34/EU + TRGS 727 for Zone 22 inside plus Zone 0, 1, 2 for gases. Service from −150 °C to +250 °C, peak +270 °C. Designed for vapour recovery systems and explosion hazard areas where extreme chemical resistance combines with ATEX requirements.

Download datasheet (PDF)

Up to +250 °C ATEX Zone 0·1·2·22 Conductive PTFE Anti-adhesive

ATEX Zone 0·1·2·22
Conductive <10⁶ Ω
Up to +250 °C
Anti-adhesive PTFE
INOX clamp profile
Cut to length

Why this hose?

CP PTFE/GLASS-INOX 471 EC is the ATEX-certified version of the 471 range — the only difference is that the PTFE film is made conductive (surface resistance <10⁶ Ω) by adding carbon. This means the hose dissipates static electricity and can be approved for ATEX zones.

The hose's ATEX marking covers both gas (Zone 0, 1, 2) and dust (Zone 22) — broader than many other ATEX-marked hoses. This makes it particularly suited for vapour recovery systems where the medium can alternate between vapours and particles over time.

Safety The ATEX approval requires correct grounding at both ends. Read our article "The invisible weakest link" for practical guidance.

Where it is used

The classic application is vapour recovery on storage tanks in petrochemical industry and fuel distribution. Here the combination of PTFE's broad chemical resistance + ATEX approval + wide temperature range is precisely what's needed.

In pharma it's used for high-purity transport lines in ATEX-relevant environments. The anti-adhesion property is important because pharma media are often valuable and even micro-deposits can contaminate later batches.

In everyday talk we call it a "PTFE EC" or "conductive PTFE clamp" — it's the top model for ATEX-relevant chemical applications.

Technical specifications

Technical specifications for CP PTFE/GLASS-INOX 471 EC.

Material	PTFE (conductive), glass fibre reinforcement, INOX clamp profile
Temperature	−150 to +250 °C (peak +270 °C)
Resistance	PTFE film <10⁶ Ω
ATEX	Zone 0·1·2 (gas) + Zone 22 (dust)
Conformity	ATEX 2014/34/EU, TRGS 727, REACH, RoHS
Cut to length	Yes
Manufacturer SKU group	4711003

Dimensions and ordering

Standard dimensions for CP PTFE/GLASS-INOX 471 EC.

Dimensions, pressure and vacuum data for CP PTFE/GLASS-INOX 471 EC
Inner Ø [mm]	Outer Ø [mm]	Working pressure DIN 26057, 10 % elong. [bar]	Vacuum axially fixed [bar]	Bend radius [mm]	Max. length [m]	Weight [kg/m]	Roll [m]	Article no.
50.5	62.5	0.41	0.3	18	10	0.56	6	47100501003
70	82	0.34	0.21	22	10	0.75	6	47100701003
75.6	87.6	0.325	0.18	24	10	0.8	6	47100751003
80	92	0.315	0.16	24	15	0.85	6	47100801003
101.5	113.5	0.195	0.1	28	15	0.8	6	47101001003
110	122	0.185	0.085	30	15	0.86	3, 6	47101101003
115	127	0.18	0.08	32	15	0.9	3, 6	47101151003
120	132	0.175	0.075	32	15	0.93	3, 6	47101201003
126.5	138.5	0.17	0.07	34	15	0.98	3, 6	47101251003
151.5	163.5	0.11	0.04	38	15	0.85	3, 6	47101501003
160	172	0.105	0.035	40	15	0.9	3, 6	47101601003
180	192	0.095	0.03	44	15	1	3, 6	47101801003
202.3	214.3	0.09	0.025	48	15	1.12	3, 6	47102001003
215	227	0.085	0.02	52	15	1.19	3, 6	47102151003
250	262	0.065	0.02	58	15	1.38	3, 6	47102501003
300	312	0.055	0.01	68	15	1.65	3, 6	47103001003

Fields without a value (—) are not specified in the manufacturer's factsheet. Overpressure and underpressure values are recommended operating limits; the product can be subjected to higher loads on request. Bend radius is measured along the inside of the hose bend.

Standards and compliance

CP PTFE/GLASS-INOX 471 EC is certified to:

ATEX 2014/34/EU (1999/92/EC). Directive for equipment in explosive atmospheres. Covers Zone 0, 1, 2 (gas) and Zone 22 (dust).
TRGS 727. German technical rule for handling of hazardous substances.
REACH and RoHS. EU directives for chemicals.

Documentation and downloads

Additional documents about this hose, its compliance and installation. Click to download as PDF in a new tab.

Datasheet (Particulair) Our 4-page datasheet with specifications, dimension table, applications and contact info. PDF REACH declaration Manufacturer declaration of REACH compliance (EC 1907/2006). PDF · 2026 RoHS declaration Manufacturer declaration of RoHS directive compliance. PDF · 2025 ISO 9001 certificate Quality management certificate for the production. PDF Installation guidelines General installation guidelines. PDF · 2025 ATEX and TRGS test report Test report for ATEX 2014/34/EU and TRGS 727 for conductive and antistatic hoses. PDF Chemical resistance table Manufacturer's overview of chemical resistance for materials, organised by medium. PDF · 2025 CP-series ingress protection Description of the clamp profile's ingress protection against moisture and particles. PDF · 2025

Help with material selection

If you're choosing a hose and are unsure about the right resistance level or zone classification, these two articles are a good place to start:

ESD

The invisible weakest link

Why a conductive or antistatic hose isn't sufficient on its own — and what grounding means for the complete system.

Read the article

ESD

Know your ohm

The difference between antistatic and conductive, which resistance limits apply where, and how to measure them correctly.

Read the article

Industries that use it

CP PTFE/GLASS-INOX 471 EC is used where ATEX requirements combine with extreme chemical resistance:

In petrochemical industry it's standard on vapour recovery systems where fuel vapours must be condensed back. The ATEX approval for both gas and dust broadly covers storage tank installations.

In pharma it's used in ATEX-relevant production lines where high purity combines with explosion hazard — e.g. handling solvents in closed systems.

Custom lengths and assemblies

The hose is delivered on 3 m, 6 m and 10 m rolls. We cut to length and fit INOX flange couplings with correct grounding — important for the ATEX approval to be active in the installation.

For specific chemical process facilities we can advise on coupling materials matching your medium while maintaining ATEX compliance.

See our custom hose assemblies

Related hoses

Hoses often considered alongside this one. Suggestions are based on the same category and similar properties.

Frequently asked questions

What's the difference between 471 and 471 EC?

471 has insulating PTFE lining and is NOT ATEX-approved. 471 EC has conductive PTFE film (surface resistance <10⁶ Ω) and IS ATEX-approved for Zone 0, 1, 2 (gas) and Zone 22 (dust). Choose 471 for standard chemical applications; choose 471 EC for ATEX zones.

What is Zone 0?

Zone 0 is the highest classification for explosive gas atmospheres — continuously or for long periods present. Typically inside a tank with fuel or solvent vapours. The hose can be approved for transport in Zone 0 because the PTFE film is chemically resistant AND ATEX-conductive.

Does it tolerate −150 °C?

Yes. PTFE is one of the few materials that work both at very low temperatures (cryogenic level) and high temperatures in the same product. This makes the hose usable in cryogenic storage applications as well as high-temperature process industry.

Does the hose need to be grounded?

Yes, ALWAYS. The ATEX approval requires correct grounding at both ends. Without grounding, static charge accumulates in the hose instead of being dissipated — can trigger an explosion.

Does it tolerate aqueous media down to −150 °C?

At such low temperatures water is solid (ice). PTFE tolerates contact with cryogenic liquids like liquid nitrogen, helium and argon. For specific applications the material should be cross-checked against the specific cryogenic liquid.

Can I get it with specific flange couplings?

Yes. We fit INOX flanges with correct grounding as a finished assembly. For specific ATEX facilities we can advise on coupling materials that maintain zone approval.