EASTERN Centrichem Model Selection
 
Postion No. 1 & 2 EC = Eastern Centrichem Centrifugal Pump
Position No. 3 Model Standard Impeller Diameter
C
D
H
J
3.88"
3.25"
4.56"
3.75"
Position No. 4 Pump Stage Model
C D H J
1 = Single Stage
2 = Two Stage
3 = Three Stage
4 = Four Stage
5 = Five Stage
X




X




X
X
X
X
X
X
X
X


Position No. 5 Basic Materials
A = 316SS
B = 316SS P&P
C = Alloy C
X
X
X
X
X

X
X
X
X
X

Position No. 6 Impeller Diameter
S = Standard
A = 3.44"
B = 3.06"
C = 4.15"
F = 3.12" (J2 & J3)
X
X
X


X




X


X

X



X
Position No. 7 Seal Arrangement (see note 4)
A = 316SS Single 21 Seal
      CBN rotary, ceramic seat, VTN
P = 316SS Single 21 Seal
      P90 rotary, SiCbd seat, EPR
C = 316SS Double 21 Seal
      (2 single 21 seals)
      CBN rotary, ceramic seat, VTN
K = 316SS Single 9 Seal
     CBN rotary, SiCbd seat, TFE
T = 316SS Single 9 Seal
      FTF rotary, SiCbd seat, TFE
E = 316SS Double 9 Seal
      CBN rotary, SiCbd seat, TFE
B = Alloy C Single 9 Seal
      CBN rotary, SiCbd seat, TFE
R = Alloy C Single 9 Seal
      FTF rotary, SiCbd seat, TFE
F = Alloy C Double 9 Seal
      CBN rotary, SiCbd seat, TFE
X
See note 1
X
See note 1



X

X

X

X

X

X

X

X




X

X









X
See note 1
X
See note 1



X

X

X

X

X

X

X

X

X


X

X









Position No. 8 Inlet Port
A = 1/4" FNPT
C = 1/2" FNPT
E = 1" FNPT
F = 1.5" FNPT
M = 1.5" 150# R.F. ANSI flange


X


X
X






X
X

X



Position No. 9 Outlet Port
A = 1/4" FNPT
C = 1/2" FNPT
D = 3/4" FNPT
E = 1" FNPT
G = 3/8" FNPT
L = 1" 150# R.F. ANSI flange



X


X



X




X

X

X




Position No. 10 Motor (see note 3)
Y = Pump and Motor
N = Pump Wet End Only
X
X
X
X
X
X
X
X
Position No. 11 Options
SS = No Options
AX = Vents and Drains
BX = Seal Flush Ports (see note 2)
CX = Vents, Drains, and Flush Ports
X
X
X
X
X

X

X
X
X
X
X

X

NOTE 1: 316SS Single 21 Seals are not available for C and H model pumps in Alloy C construction (pump material option C)
 
NOTE 2: Seal flushing ports are standard for all pumps with double seals and model H pumps with single Type 9 seals
 
NOTE 3: Power frame or 5.0 HP motor option is required when selecting H4 or H5 models.
 
NOTE 4: Maximum discharge pressure for Type 21 seals is 200 psig.


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