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CONNECT 240 EC

CONNECT 240 EC is an electrically conductive soft slide-on sleeve developed for ATEX installations on the AIRDUC PUR series' EC and AS variants (351 EC, 355 EC, 356 EC, 350 AS, 355 AS, 356 AS) and the AIRDUC PVC series (341, 345). The sleeve combines high abrasion resistance with chemical-, microbe- and hydrolysis-resistance - a specification that makes it ideal for food and pharma industry. The electrical property is documented with through-resistance below 10E3 ohms (contact resistance) and surface resistance below 10E3 ohms; also conforms to NFPA 652 threshold of <10E6 ohms. Temperature range -40 to +90 deg C with peak +125 deg C.

Download datasheet (PDF)

EC <10³ Ω ATEX 21/22 ID 38 - 60 mm Screw-on
  • ATEX EC
  • <10³ Ω
  • NFPA 652 compliance
  • AIRDUC EC/AS
  • Abrasion- and chemical-resistant
  • -40 to +125 deg C peak

Technical specifications

The product's key specifications are briefly summarised below.

Type Electrically conductive soft slide-on sleeve
Compatibility AIRDUC EC and AS variants (351 EC, 355 EC/AS, 356 EC/AS) + PVC 341/345
Electrical resistance <10³ Ω (through and surface)
NFPA 652 compliance <10⁶ Ω
Properties Abrasion-, chemical-, microbe-, hydrolysis-resistant
Temperature -40 to +90 °C (peak +125 °C)
Dimensions 4 pcs - ID 38, 40, 50, 60 mm
Standards RoHS + REACH
Manufacturer SKU 2401003

Dimensions and ordering

The table shows CONNECT 240 EC's standard dimensions.

Dimensions, pressure and vacuum data for CONNECT 240 EC
Inner Ø
[mm]		 Outer Ø
[mm]		 Max. length
[m]		 Weight
[kg/m]		 Article no.
3838850.0924000381003
4040850.0924000401003
5050900.124000501003
6060900.1324000601003

Each dimension has its own article number. Weight is per piece.

Compatible with these hoses

This accessory is qualified by the manufacturer for the following hoses.

AIRDUC® PUR 351 EC (MD)
ATEX/ESD

AIRDUC® PUR 351 EC (MD)

Electrically conductive polyurethane hose for ATEX zones
AIRDUC® PUR 355 EC (HD)
ATEX/ESD

AIRDUC® PUR 355 EC (HD)

Conductive heavy-duty polyurethane hose for abrasive media in ATEX zones
AIRDUC® PUR 356 EC (XHD)
ATEX/ESD

AIRDUC® PUR 356 EC (XHD)

Conductive extra-heavy-duty polyurethane hose for extremely abrasive media in ATEX zones
AIRDUC® PUR 350 AS (MD)
ATEX/ESD

AIRDUC® PUR 350 AS (MD)

Lightweight antistatic PUR hose for pneumatic transport in ATEX zones
AIRDUC® PUR 355 AS (HD)
ATEX/ESD

AIRDUC® PUR 355 AS (HD)

Antistatic heavy-duty polyurethane hose for abrasive media in ATEX zones
AIRDUC® PUR 356 AS (XHD)
ATEX/ESD

AIRDUC® PUR 356 AS (XHD)

Antistatic extra heavy-duty PUR hose for the toughest media in ATEX zones

Frequently asked questions

What does the EC resistance mean?

CONNECT 240 EC has documented electrical resistance below 10E3 ohms (1000 ohms) for both through-resistance and surface resistance. This means the sleeve is classified as electrically conductive (not just static-dissipative). This is critical in ATEX installations where static discharge from the hose's medium must be conducted to earth without building up charge. The sleeve also conforms to NFPA 652 (US standard for dust explosion handling) which has a higher threshold of <10E6 ohms.

Which hoses?

CONNECT 240 EC is qualified for AIRDUC PUR EC variants (351 EC, 355 EC, 356 EC) and AS variants (350 AS, 355 AS, 356 AS) plus AIRDUC PVC 341, 345. For standard non-EC AIRDUC variants, we recommend CONNECT 240 (base version) instead which does not have EC function but is cheaper.

Difference from CONNECT 240?

CONNECT 240 (base) has abrasion-, chemical- and microbe-resistance but is NOT electrically conductive. CONNECT 240 EC adds the electrical conductivity plus hydrolysis resistance. For ATEX/ESD installations CONNECT 240 EC is mandatory; for non-ATEX applications CONNECT 240 (base) is the cheaper alternative.

Recommended ohm-test after installation?

Yes - good practice. Measure the resistance between the hose's conductive layer and the earth structure after installation. Values below 10E6 ohms confirm functional earth connection - lower is better. CONNECT 240 EC's own through-resistance is specified <10E3 ohms. See our 'Know your ohm' article for guidelines on multimeter measurement and interpretation.