Corken 521 - Page 15

Appendix A—Model Number Identification Code and Available Options
Models 521, 1021, and F1021
Mounting Options
Part Number
Model
Reference
Maximum Motor
Frame Size
Ship Weight
lb (kg) Mounting Only
Mounting Option
103-9- 521 245T 422 (191) Mounting set up for V-belt drive. Includes steel baseplate,
adjustable motor slide base, V-belt drive, and enclosed
belt guard.103-10- 1021 and F1021 284T 560 (254)
102- All Consult Factory
Mounting set up for use with engine driver through V-belt
includes steel baseplate, flexible coupling and guard
101GRB- All 254T Consult Factory
Mounting set up for direct drive. Includes size B gear reducer,
steel baseplate, reducer bracket, couplings, and coupling guard.
101GRC- All 324T Consult Factory
Mounting set up for direct drive. Includes size C gear reducer,
steel baseplate, reducer bracket, couplings, and coupling guard.
Base Model # 521 1021 F1021
Inlet 2-1/2" NPT 3" NPT 3" ANSI 300 lb
Outlet 2" NPT 3" NPT 2-1/2" ANSI 300 lb
Weight bare
pump lb (kg)
132 (60) 200 (91) 200 (91)
Specification Fields
Blade Type 10 blades Standard E
Blade
Material
GCB-50 Standard G
O-ring
Material
Buna-N Standard A
Neoprene
®1
No charge option B
Seal Seat
Material
Silicon carbide Standard 6
Flange Options
WF=Slip on weld flange All ANSI flanges are 300 lb. • = Available option “Blank” = Not available
Inlet Flange
Standard
2-1/2" NPT • J
3" NPT • M
3" ANSI • P
4" ANSI S
No Cost
2" NPT • E
4" NPT • Q
Extra Cost
2" WF • F
2-1/2" WF • K
3" WF • N
4" WF • R
Outlet Flange
Standard
2" NPT • E
3" NPT • M
2-1/2" ANSI • L
3" ANSI P
No Cost
1-1/2" NP T • C
2-1/2" NPT • J
4" NPT • Q
Extra Cost
1-1/2" WF • D
2" WF • F
2-1/2" WF • K
3" WF • N
4" WF • R
Model Number
Base X X X X X X
1
Registered trademark of the DuPont company.
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