23
O
ve
rv
ie
w
Identification codes
The model codes of the pump/drive units and the control unit represent the fol-
lowing information.
Pump/Drive units
EWN - B 11 VC E R -
a
b c d e f g h
i
a. Series name
EWN: Multivoltage electromagnetic metering pump
b. Drive unit (Average power consumption)
B: 20W
C: 24W
c. Diaphragm effective diameter
09: 8mm
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
CE
FKM
FKM
PTFE
PTFE
+ EPDM
VH
HC276
EPDM
EPDM
PC
GFRPP
CE
FKM
FKM
PH
HC276
EPDM
EPDM
FC
PVDF
CE
PCTFE
―
TC
FKM
FKM
SH
SUS316
HC276
SUS316
―
Automatic air vent (Auto degassing type)
Code
Air vent valve
guide A
Air vent valve
guide B
Valve
Separate pin Valve seat
O ring
VC
PVC
PVC
CE
Titanium
FKM
FKM
VH
HC276
HC276
EPDM
EPDM
Material code
PVC : Transparent polyvinyl chloride GFRPP : Glassfiber-reinforced polypropylene
PVDF : Polyvinylidene difluoride
EPDM : Ethylene-propylene rubber
FKM : Fluorine-contained rubber
PTFE : Polytetrafluoroethylene
HC276 : HASTELLOY C276
SUS316 : Austenite stainless steel
CE
: Alumina ceramics
PCTFE : Polymonochlorotrifluoroethyle
Identification codes
Summary of Contents for EWN -B16 TC
Page 113: ...113 Specification Specifications Outer dimensions...
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