Vogelsang VX136Q - 3.1 Material description for rotary lobes

Specifications
12
WBV.PU.002.EN VX136Q V2.0
3.1 Material description for rotary lobes
Marking on
the rotary
lobe
Material
Elastomer-based
Resistant
up to
Pump medium
Characteristics
NBR
NBR
Nitrile butadiene
rubber
80 °C *
Sewage sludge,
petrol,
oil, grease, diesel oil,
spindle oil
Oil-resistant
NBR
NBR, white
Nitrile butadiene
rubber
80 °C *
Oil, butter, linseed
and olive oil, lard
Food grade
SBR
SBR
Styrene butadiene
rubber
60 °C
Liquid manure
Wear-resistant
SL
EPDM-SL
(EPDM-
Sewage-Line)
Ethylene
propylene
diene M-class
rubber
80 °C *
Water, liquid manure,
sewage sludge,
biogas substrate
Not oil and grease
resistant,
water resistant,
steam resistant
AL
EPDM-AL
(EPDM-Aqua-
Line)
Ethylene
propylene
diene M-class
rubber
80 °C *
Drinking water
Drinking water
approved **,
not oil or grease-
resistant,
water-resistant,
steam-resistant
EPDM
EPDM, white
Ethylene
propylene
diene M-class
rubber
80 °C *
Water, mash, slightly
acidic products
Food grade
PU
PU
(Werobust )
Polyurethane
vulcanised
50 °C
Abrasive medium
Wear-resistant
PUR
PUR
Polyurethane
cast
80 °C
Abrasive medium
Highly wear-resistant
CSM
CSM
(Hypalon)
Chloro-sulfonyl
polyethylene
rubber
80 °C *
Petrol, oil, acids,
alkali solutions
Wear-resistant,
acid-resistant and
alkali-resistant
FPM
FPM
Fluorocarbon
gum
80 °C *
Solvents, salt water,
oil, petrol, acids
Acid-resistant and
alkali-resistant
Steel lobes
(pure material)
1.4571
150 °C
200 °C*
Pure medium
Chemistry
High temperatures,
high chemical
resistance
Steel rotary
lobes
(pure material)
C45 nitrided
150 °C
200 °C*
Pure medium
petrochemical
High temperatures,
chemical resistance
Table: Material description
* consult Vogelsang in the event of the combination of "high differential pressure and high temperatures" 
** drinking water approvals: KTW, DVGW-Arbeitsblatt, W 270, WRAS, BELAQUA
Please consult us 
• If you require combinations with high differential pressure and high temperatures – (see * in  Table
"Material description").
• With solid material lobes with media containing foreign matter
• If you should discover discrepancies or if precise specifications have not been provided for the
medium