• Impellerpumpen Chieme-Industrie

Approval for use in potentially explosive atmospheres

The ATEX-NIROSTAR series has a type examination by a notified body in accordance with Annex III of Directive 2014/34/EU, including the essential health and safety requirements in accordance with Annex II of Directive 2014/34/EU as a category 2 non-electrical device.

Type Examination Certificate No.: BVS 18 ATEX H 004 X

Equipment label and clarification:

EX II2/2G1 EX2 IIB3 T24 Gb/Gb5+5°C ≤ Ta ≤ +40°C

  1. Equipment Group II – Surface Industries, Equipment Category 2 Gas / Vapor G, Suitable for Zone 1 and 2
  2. Type of protection for non-electrical equipment in potentially explosive atmospheres. Explosion protection in accordance to ISO 80079-36/37 Standards. Type of protection “Constructional Safety“- Marked with EX
  3. Gas Group IIB
  4. Temperature Class T2 (Gas) Maximum Surface Temperature 195°C
  5. Explosion Protection Level Gb (High Level of Protection) Gas

Labeling according to RL 2014/34/EU and ISO 80079 Part 36

What is ATEX?

Impeller Materials

The ZUWA Flexible Impeller Pumps are equipped standard with NBR (Perbunan®, Buna-N®). Five different elastomer type impellers can be equipped for ATEX applications!

Impeller MaterialSuitable forCharacteristics
Acrylonitrile-Butadiene-rubber (Perbunan®, Buna-N®)
water, antifreeze, heat transfer fluid, vegetable oil and greasehigh impact elasticity and goodmechanical strength good for applications involving high pressures up to max. 5 bar
Ethylene-Propylene-Diene-rubber (Keltan®, Buna EP®)
high temperatures, acidsand baseshigh elasticity and very goodmechanical stability
Fluor-rubber (Viton®, Fluorel®)
oil, diesel, fuel oil, palm oil, soy bean oil and oil emulsive woodpreservatives very good chemicalresistance, less mechanical resistance
Chloroprene-rubber(Neoprene®, Bayprene®)
preferably used for applications in the food industryflame retardant, tearproof, durable
water, mineral and vegetable oils,diesel fuel, heat transfer fluidand several chemicalsextremely tear resistant and goodmechanical resistance, maximum fluid temperature 60°C

Technical details

Capacitymax. 30 l/minmax. 60 l/min
Pressuremax. 5 barmax. 5 bar
Inlet / Outlet Connections¾"1"
Speedmax. 2.800 rpmmax. 2.800 rpm
Protection ClassIP 66IP 66
Fluid Temperaturemax. 60°Cmax. 60°C
Suction Capabilitymax. 7 meters (dry max. 3 meters)max. 7 meters (dry max. 3 meters)
Sound Level74 dB (A)74 dB (A)


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