14 General CR/EN (1004) 4.0
2.3 Type code
Pumps are available in various designs. The main characteristics of the pump are shown
in the type code.
Example: CR 50A-200 A-8 1CW-FX
Pump family
CR CombiPro
Pump size
50A discharge connection [mm]. A and B design pump types have the same
designation though they have different hydraulic performances
200 nominal impeller diameter [mm]
Pump casing material according to API 610
S-1 carbon steel
S-6 carbon steel
S-8 carbon steel
C-6 12% CHR
A-8 316 AUS
Impeller material according to API 610
S-1 cast iron
S-6 12% CHR
S-8 316 AUS
C-6 12% CHR
A-8 316 AUS
Shaft sealing code according to API 682
Arrangement 1
1CW-FX Contacting single wet seal with a fixed throttle bushing
1CW-FL Contacting single wet seal with a floating throttle bushing
Arrangement 2
2CW-CWLiquid buffer fluid, Dual contacting we t seals
2CW-CS Gas buffer fluid or no buffer fluid, Contacting wet inner seal with a
containment seal
2NC-CS Gas buffer fluid or no buffer fluid, Non-contacting inner seal with a
containment seal
Arrangement 3
3CW-FB Liquid barrier fluid, Contacting wet seals in a face-to-back configuration
3CW-BB Liquid barrier fluid, Contacting wet seals in a back-to-back configuration
3CW-FF Liquid barrier fluid, Contacting wet seals in a face-to-face configuration
3NC-BB Gas barrier fluid, Non-contacting seals in a back-to-back configuration
3NC-FF Gas barrier fluid, Non-contacting seals in a face-to-face configuration
3NC-FB Gas barrier fluid, Non-contacting seals in a face-to-back configuration