Chemical-resistant · Chemical-resistant

CP PTFE-INOX 475 EC

Highly flexible single-layer clamp profile hose with conductive PTFE lining and stainless steel clamp. ATEX-certified per 2014/34/EU + TRGS 727 for Zone 22 (dust) and Zone 0, 1, 2 (gases). Service from −150 °C to +250 °C, peak +270 °C. Designed for extraction arms in ATEX zones and for chemical industry where ATEX approval combines with high temperature and broad chemical resistance.

Download datasheet (PDF)

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

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

Why this hose?

CP PTFE-INOX 475 EC resembles 471 EC but is a single-layer construction — without the extra glass fibre reinforcement. This gives a lighter hose that's easier to bend on extraction arms and similar mobile applications.

The ATEX approval and breadth of chemical resistance is identical to 471 EC. The difference lies in mechanical construction: 475 EC is the "slim" PTFE-EC variant; 471 EC is the "reinforced" version.

Where it is used

On extraction arms in ATEX zones it's often the preferred PTFE-EC hose because the single-layer construction gives better flexibility during bending. Users in laboratories and chemical process facilities appreciate the lighter handling.

In petrochemical industry it sits on vapour recovery installations where the medium is aggressive and ATEX compliance is a basic requirement.

In everyday talk we call it a "475 EC" or "slim PTFE" — it's the lighter PTFE-EC variant.

Technical specifications

Technical specifications for CP PTFE-INOX 475 EC.

Material	Conductive PTFE lining, INOX clamp
Temperature	−150 to +250 °C (peak +270 °C)
Resistance	PTFE film <10⁶ Ω
Construction	Single-layer (light), INOX clamp profile
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	4751003

Dimensions and ordering

Standard dimensions for CP PTFE-INOX 475 EC.

Dimensions, pressure and vacuum data for CP PTFE-INOX 475 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	0.27	18	10	0.52	6	47500501003
60	72	0.37	0.22	20	10	0.6	6	47500601003
64.5	76.5	0.355	0.2	22	10	0.64	6	47500651003
75.6	87.6	0.325	0.16	24	10	0.75	6	47500751003
80	92	0.315	0.14	24	10	0.79	6	47500801003
90	102	0.29	0.1	26	10	0.88	6	47500901003
101.5	113.5	0.195	0.085	28	15	0.73	6	47501001003
110	122	0.185	0.075	30	15	0.79	3, 6	47501101003
115	127	0.18	0.07	31	15	0.82	3, 6	47501151003
120	132	0.175	0.065	32	15	0.86	3, 6	47501201003
126.5	138.5	0.17	0.06	34	15	0.9	3, 6	47501251003
140	152	0.16	0.04	36	15	0.99	3, 6	47501401003
151.5	163.5	0.11	0.035	38	15	0.74	3, 6	47501501003
160	172	0.105	0.03	40	15	0.78	3, 6	47501601003
202.3	214.3	0.09	0.02	48	15	0.97	3, 6	47502001003
250	262	0.065	0.015	58	15	1.2	—	47502501003
275	287	0.06	0.015	64	15	1.31	3, 6	47502751003
300	312	0.055	0.01	68	15	1.43	3, 6	47503001003
325	337	0.055	0.01	74	15	1.55	3, 6	47503251003

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-INOX 475 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-INOX 475 EC is used on extraction arms and ATEX installations:

On extraction arms the single-layer construction is an advantage because the arm must be able to move in 3D — the hose follows arm movements more easily than the heavier 471 EC.

In petrochemical industry on vapour recovery tanks the lighter construction is also a plus during daily service and inspection.

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.

For extraction arms we can fit bayonet connections that enable quick replacement.

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 475 EC and 471 EC?

475 EC is single-layer (lighter), 471 EC is double-layer with glass fibre reinforcement (stronger). Both have conductive PTFE and same ATEX approval + temperature range. Choose 475 EC for extraction arms where flexibility is important; choose 471 EC for fixed installations where mechanical durability is prioritised.

What are extraction arms?

An extraction arm is a mechanical arm that can be moved in 3D to position an extraction mouthpiece close to a work point. Typically used in workshops and laboratories. The combination of manual positioning + chemical and ATEX resistance requirements makes 475 EC a natural choice.

Does the hose need to be grounded?

Yes, ALWAYS. The ATEX approval requires correct grounding at both ends.

Does it tolerate cryogenic liquids?

Yes, PTFE is one of the few materials that work both at very low temperatures (cryogenic) and high temperatures. The hose can handle liquid nitrogen, helium and argon (depending on specific application).

How long is the lifetime on an extraction arm?

It depends on use — number of movements per day, medium and external wear. Typically 3-7 years with daily use in chemical laboratory. Single-layer construction can show mechanical wear slightly faster than double-layer variants.

Can I get it with specific ATEX flanges?

Yes. We fit INOX flanges with correct grounding — important for the entire system to maintain ATEX approval.