ZUWA Impeller Pumps
10
4.2 Impeller materials
Impeller pumps are equipped with NBR impellers as standard.
Material designation
Suitable for:
Properties
NBR
Acrylonitrile butadiene rubber
(Perbunan®, Buna-N®)
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®)
high temperatures,
acids and alkalis
high elasticity and very
good mechanical stability
FKM
or
FPM
Fluorocarbon rubber (Viton®,
Fluorel®)
oil, diesel, fuel oil, palm
oil, soy bean oil and
oleaginous wood
preservatives
very good chemical
resistance, low mechanical
strength
CR
Chloroprene rubber
(Neoprene®, Bayprene®)
food, drinks
flame resistant, tearproof,
durable
plastic
water, mineral and
vegetable oils, diesel,
heat transfer fluid,
antifreeze
extremely tear resistant
and good mechanical
stability
max. fluid temperature
60°C
5. Transportation and unpacking
>
After unpacking, immediately check the pump for completeness and damage.
>
Immediately report any transit damage to the supplying company.
>
Dispose of packaging material according to the respective local regulations.
6. Mounting
Danger
Danger of death due to electric shock
>
Work on the electrics may only be carried out by specialist
personnel.
Danger
Danger of injury from rotating components
>
Cover drive and pump shaft.
