Model Coding - Liquiflo CENTRY 620 Series Installation, Operation & Maintenance Manual

Liquiflo Installation, Operation & Maintenance Manual
1.4

Model Coding

Table 6: Model Coding for Centry
Position Description
1 Pump Model
2 Impeller Size
Basic Material of
3 Construction &
Port Type
4 Seal Configuration
Motor Frame
5
(or Power Frame)
6 O-Rings/Gaskets
Impeller Trim
7
(Standard)
1 Standard Single Mechanical Seal configuration for 316 SS pumps only. New design utilizes closed 316 SS
Mounting Bracket with integral Seal Housing.
2 Single Mechanical Seal configuration for Alloy-C pumps only. Legacy design utilizes open Cast Iron/Epoxy-
Painted Mounting Bracket with separate Seal Housing.
3 Double Mechanical Seal configuration for Legacy pumps only.
4 Lantern Ring/Packing configuration for Legacy pumps only.
5 Foot-Mount Motor is required. (See cover photos.)
6 Power Frame requires Long-Coupled configuration. (See diagram on page 10.)
7 Seal Seats for Type 21 or 9T Mechanical Seals use Viton O-rings; Seal Seat for Type 9A Single Mechanical Seal
uses Teflon O-ring; Seal Housing for Type 9A Single Mechanical Seal uses Viton O-ring.
Model Coding Example:
Position:
620FS0000 =
Model 620
Full-Size Impeller
316 SS Construction & NPT Ports
Single Internal Mech. Seal – Carbon/SiC (Type 21)
Close-Coupled – NEMA 56C Motor Frame
Teflon Housing Gasket
Impeller Trim – No Trim
®
Model 620 - Sealed
Code
620
F
R
S
H
L
C
0
1
2
3
4
5
6
7
0
1
P
0
V
G
0
1
2
3
4
1 2 3
620 F S
Selection
Model 620
Full-Size – 3.75" Diameter
Reduced-Size
316 SS Construction & NPT Ports
Alloy-C Construction & NPT Ports
316 SS Construction & Flanged Ports
Alloy-C Construction & Flanged Ports
Single Internal Mechanical – Carbon/SiC (Type 21)
Single Internal Mechanical – Carbon/SiC (Type 9T)
Single Internal Mechanical – Carbon/SiC (Type 9A)
Single Internal Mechanical – Teflon/SiC (Type 9A)
Double Mechanical – Carbon/SiC (Type 9T)
Lantern Ring – Teflon Packing
Single Internal Mechanical – Teflon/SiC (Type 9T)
Lantern Ring – Graphoil Packing
Close-Coupled – NEMA 56C
Close-Coupled – NEMA 143TC/145TC
Pedestal Mount – Power Frame
7
Teflon Housing Gasket
Viton O-Rings
7
Graphoil Housing Gasket
No Trim
3.50" Diameter
3.25" Diameter
3.00" Diameter
2.75" Diameter
4 5
0 0
5
®
Centry Series Centrifugal Pumps
Model 620 – Sealed
Pos. 7 = 0
Pos. 7 = 1, 2, 3 or 4
1
1
2
2
3
4
1
4
5
5
6
Pos. 2 = F
Pos. 2 = R
6
7
0 0