* With Perbunan-Impellor (NBR)
Standard with NBR-Impellor optional: EPDM, CR, FKM or FPM, Plastic Impellor
NBR/Acrylonitrile-Butadiene-rubber (Perbunan®,Buna-N®)
-for water, antifreeze, heat transfer fluid, vegetable oil and grease high impact elasticity and
 good mechanical strength good for applications involving high pressures up to max. 5 bar.
EPDM/Ethylene-Propylene-Diene-rubber (Keltan®,Buna EP®)
-for high temperatures, for acids and bases.
 high elasticity and very good mechanical stability.
CR/Chloroprene-rubber (Neoprene®,Bayprene®)
-preferably used for applications in the food industry.
 flame retardant, tearproof, durable.
FKM or FPM/Fluor-rubber(Viton®, Fluorel®)
-for diesel, fuel oil, palm oil, soy bean oil emulsive wood
 preservatives very good chemical resistance, less mechanical resistance
Plastic
-for water, mineral and vegatable oils, diesel fuel, heat transfer fluid and several
 chemicals extremely tear resistant and good mechanical resistance
 (not suitable for abrasive fluids) maximum fluid temperature 60ºC