19
Outl
in
e
Identi
fi
cation codes
Identi
fi
cation codes
The model codes of the pump/drive units and the control unit represent the fol-
lowing information.
Pump/Drive units
EHN - B 11 VC 1 R -
a
b c d e f
g
a. Series name
EHN: Multivoltage electromagnetic metering pump
b. Drive unit code (Average power consumption)
B: 20W
C: 24W
c. Diaphragm effective diameter
11: 10mm
16: 15mm
21: 20mm
31: 30mm
36: 35mm
d. Wet end materials
Code
Pump head
Valve
O ring
Valve seat
Gasket
Diaphragm
VC
PVC
Alumina ceramic
FKM
FKM
PTFE
PTFE
+ EPDM
(EPDM is
not a wet
end.)
VH
HC276
EPDM
EPDM
PC
GFRPP
Alumina ceramic
FKM
FKM
PH
HC276
EPDM
EPDM
PP
Alumina ceramic
FKM
PCTFE
FC
PVDF
Alumina ceramic
-
PCTFE
Material code
PVC
: Transparent polyvinyl chloride
GFRPP :
Glass
fi
ber-reinforced polypropylene
PVDF
: Polyvinylidene di
fl
uoride
EPDM
: Ethylene-propylene rubber
FKM
: Fluorine-contained rubber
PTFE :
Polytetra
fl
uoroethylene
PCTFE :
Polymonochlorotri
fl
uoroethyle
HC276 : HASTELLOY C276
Summary of Contents for EHN-R
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