Abrasion-resistant · Abrasion-resistant

NORPLAST® 385 AS GRANUFLEX®

Abrasion-resistant antistatic suction and pressure hose in polyurethane, designed for granulate transport in ATEX-relevant installations. Resistance <10⁹ Ω per ISO 8031. The PUR lining resists abrasive granulates (plastic pellets, grain, minerals) across thousands of pump cycles. Service from −40 °C to +80 °C. Alternative to the 387 Antiabrasivo range for less heavy granulates where PUR flexibility is prioritised over maximum abrasion resistance.

Download datasheet (PDF)

Antistatic <10⁹ Ω Abrasion-resistant PUR −40 to +80 °C Granulates

Antistatic <10⁹ Ω
Abrasion-resistant PUR
−40 to +80 °C
ISO 8031
Suction + pressure
Cut to length

Why this hose?

NORPLAST® 385 AS GRANUFLEX® is specialised for granulate transport in pneumatic systems where the antistatic property is critical. Dry granulate flow through an insulating hose builds static electricity quickly — at worst enough to ignite fine dust.

The PUR lining is chosen because it balances abrasion resistance with flexibility. It's less heavy than NORPLAST® PUR 387 ANTIABRASIVO but still suitable for granulates of medium hardness (plastic pellets, grain, smaller mineral granulates).

Where it is used

In the plastics industry the hose typically sits on pellet supply systems between silo and injection moulding machine. The antistatic property prevents static accumulation during continuous pellet flow.

In agriculture it's used for grain and feed handling where dust explosion is a constant risk.

In everyday talk we call it a "GRANUFLEX AS" — the antistatic granulate specialist hose.

Technical specifications

Technical specifications for NORPLAST® 385 AS GRANUFLEX®.

Material	PUR lining, antistatic outer cover
Resistance	<10⁹ Ω (ISO 8031)
Temperature	−40 to +80 °C
Conformity	ISO 8031, REACH, RoHS
Cut to length	Yes
Manufacturer SKU group	385

Dimensions and ordering

Standard dimensions for NORPLAST® 385 AS GRANUFLEX®.

Dimensions, pressure and vacuum data for NORPLAST® 385 AS GRANUFLEX®
Inner Ø [mm]	Outer Ø [mm]	Vacuum axially fixed [bar]	Bend radius [mm]	Max. length [m]	Weight [kg/m]	Roll [m]	Article no.
38	45	0.2	38	30	0.34	30	4609038000
40	—	0.2	40	30	0.35	30	4609040000
45	—	0.2	45	30	0.43	30	4609045000
51	—	0.2	51	30	0.45	30	4609050000
60	68.2	0.16	60	30	0.6	30	4609060000

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

NORPLAST® 385 AS GRANUFLEX® conforms to:

ISO 8031. Test standard for electrical resistance.
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

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

NORPLAST® 385 AS GRANUFLEX® is used where antistatic granulate transport is needed:

In the plastics industry it's the first choice on pellet supply systems. PUR's abrasion resistance combined with the antistatic property is a standard combination.

In agricultural grain handling it's usable for medium-sized transport installations.

Custom lengths and assemblies

The hose is delivered on 50 m rolls. We cut to length and fit couplings with correct grounding.

For serial deliveries we can establish consistent assembly.

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 385 AS GRANUFLEX and 387 ANTIABRASIVO?

385 GRANUFLEX is a less heavy version optimised for medium-hard granulates (pellets, grain). 387 ANTIABRASIVO has even better abrasion resistance (abrasion value from 30 mm³) and is designed for the hardest media (gravel, cement, sand).

Does the hose need to be grounded?

Yes. The antistatic property only works with correct grounding.

Does it tolerate hot air?

Up to +80 °C continuous. This covers most pneumatic transport applications for granulates.

Is it ATEX-approved?

It's antistatic-marked but not formally ATEX-marked. For Zone 22 (occasional dust) antistatic is often sufficient.

Can I use it for plastic pellets?

Yes, it's a standard application. The PUR lining tolerates both virgin and recycled pellets without significant wear.

Can I get it with Camlock?

Yes. We fit Camlock, clamp ring or other standard couplings as a finished assembly with correct grounding.