HUPLONG INDUSTRIES (M) SDN BHD is the authorized distributor of NORRES industrial hoses in Malaysia.

HUPLONG INDUSTRIES (M) SDN BHD supplies genuine NORRES AIRDUC® PUR 355 EC (HD) electrically conductive polyurethane hoses for flexible ducting of abrasive powder, bulk material, granulate and gases.

NORRES AIRDUC® PUR 355 EC (HD) is an electrically conductive polyurethane hose in the heavy duty classification. NORRES specifies an AIRDUC® profile hose with a spring steel wire firmly embedded in the wall. The wall is made from electrically conductive premium ester-polyurethane Pre-PUR® with an approximate wall thickness of 1.4 to 1.5 mm.

NORRES states that AIRDUC® PUR 355 EC (HD) has increased pressure and vacuum resistance, is highly abrasion resistant, has very good low-temperature flexibility and good resistance to oil, gasoline and chemicals. The electrically conductive wall has electrical and surface resistance below 10³ Ω. NORRES also states a value below 10⁶ Ω according to NFPA 652.

NORRES lists flexible ducting for high throughput of abrasive powder, bulk material, granulate and gases. Official applications include industrial vacuum cleaners, vacuum cleaners, coal mining, mining and tunnelling ventilation, methane extraction, and raw material conveying of powders, granulates, sand, quartz, gravel, shards and chips or shavings.

NORRES states that this hose is in accordance with ATEX 2014/34/EU (1999/92/EC) and German TRGS 727 for the pneumatic transport of flammable dusts and bulk materials in Zone 20, 21 and 22 inside, aspiration of combustible dusts in Zone 22 inside, conveying of flammable liquids in Zone 0, 1 and 2 inside, conveying of non-flammable liquids, use in Zone 1 and 2 for gases, and use in Zone 0 for gases.

The official temperature range is -40°C to 90°C. NORRES also lists AIRDUC® PUR 355 EC (HD) according to DIN 26057 Type 3, with RoHS conformity and REACH information available through NORRES technical information.

The current standard delivery variant is black. Further diameters and lengths are available on request according to NORRES.

Our team can assist customers throughout Malaysia with NORRES hose selection based on hose diameter, conveyed material, operating temperature, airflow, vacuum condition, installation length and quantity requirement.

For electrically conductive hose selection, the full system design, grounding arrangement, conveyed material, applicable zone classification and installation conditions must be checked by the responsible system designer or safety specialist.

The permitted pressure, vacuum and bending-radius values vary by hose size and must be checked against the official technical table before use.

FAQ

Q: What is NORRES AIRDUC® PUR 355 EC (HD)?
A: NORRES AIRDUC® PUR 355 EC (HD) is an electrically conductive polyurethane hose in the heavy duty classification.

Q: What is the official construction of this hose?
A: NORRES specifies an AIRDUC® profile hose with a spring steel wire firmly embedded in the wall. The wall is electrically conductive premium ester-polyurethane Pre-PUR® with an approximate wall thickness of 1.4 to 1.5 mm.

Q: Is AIRDUC® PUR 355 EC (HD) electrically conductive?
A: Yes. NORRES specifies an electrically conductive wall with electrical and surface resistance below 10³ Ω. NORRES also states a value below 10⁶ Ω according to NFPA 652.

Q: Is this hose antistatic?
A: NORRES identifies AIRDUC® PUR 355 EC (HD) as an electrically conductive hose. This is not the same product version as AIRDUC® PUR 355 AS (HD), which is the permanently antistatic version.

Q: Is AIRDUC® PUR 355 EC (HD) suitable for abrasive material?
A: Yes. NORRES states that this model is highly abrasion resistant and lists abrasive powder, bulk material, granulate, sand, quartz, gravel, shards and chips or shavings among its official applications.

Q: What applications are officially listed by NORRES?
A: NORRES lists flexible ducting for high throughput of abrasive powder, bulk material, granulate and gases, industrial vacuum cleaners, vacuum cleaners, mining and tunnelling ventilation, methane extraction, and raw material conveying applications.

Q: What is the operating temperature range?
A: NORRES specifies an operating temperature range of -40°C to 90°C.

Q: Can this hose be used for suction and pressure operation?
A: NORRES states increased pressure and vacuum resistance. The permitted pressure and vacuum values vary by hose size and must be checked against the official technical table before use.

Q: Does NORRES list this hose for flammable dust or liquid applications?
A: NORRES states that this model is in accordance with ATEX 2014/34/EU (1999/92/EC) and German TRGS 727 for the officially specified pneumatic transport, aspiration, conveying and gas-zone applications. The full system design and applicable installation requirements must be checked before use.

Q: Is AIRDUC® PUR 355 EC (HD) resistant to oil gasoline and chemicals?
A: NORRES states good resistance to oil, gasoline and chemicals.

Q: What colour is the standard delivery variant?
A: NORRES lists black as the standard delivery variant.

Q: How should the correct hose size be selected?
A: Selection should be based on hose inside diameter, conveyed material, airflow, operating temperature, pressure or vacuum requirement, bending radius, installation length and quantity requirement. The permitted values vary by hose size and must be checked against the official technical table before use.