Grundfos NB - Type Key, NB, NBG

Pos. Explanation
11
Code for materials
Code Pump housing Impeller Wear ring Shaft
S2 A48 Class 35 304 No wear ring 420
S3 A48 Class 35 304 No wear ring 304
S4 A48 Class 35 304 No wear ring 316
S5 A48 Class 35 304 No wear ring SAF 2205
S8 A48 Class 35 316 No wear ring 316
S9 A48 Class 35 316 No wear ring SAF 2205
SA 70-50-05 304 No wear ring 420
SB 70-50-05 304 No wear ring 304
SC 70-50-05 304 No wear ring 316
SD 70-50-05 304 No wear ring SAF 2205
SG 70-50-05 316 No wear ring 316
SH 70-50-05 316 No wear ring SAF 2205
T2 A48 Class 35 CD4MCuN/A890 No wear ring SAF 2205
TA 70-50-05 CD4MCuN/A890 No wear ring SAF 2205
X Special version
12
Rubber parts in pump
E: EPDM
F: FXM (Fluoraz
®
)
K: FFKM (Kalrez
®
)
M: FEPS (PTFE-sheathed silicone O-ring)
O: HNBR
V: FKM (Viton
®
)
13
Shaft seal arrangement
S: Single seal
14
Shaft seal in pump
Letter code for mechanical shaft seal and shaft seal rubber parts. See Letter codes for shaft seals.
15 Code for rated motor power [kW]. See Codes for rated motor power.
16 Code for phase and voltage [V] or other information. See Codes for phase and voltage or other information.
17 Code for speed variant [rpm]. See Codes for speed variant.
Example 1: NB 025-095/08.43AA2G6S3ESBQQETX2 shows an
NB 025-095 pump with these characteristics:
• 08.43 inch closed impeller, cylindrical trim
• hydraulic version A
• pump without sensor
• grease-lubricated standard bearing design
• spacer coupling
• ANSI flange to ASME/ANSI B16.1
• Class 125, 174 PSI
• cast iron pump housing, A48 Class 35
• stainless steel impeller, 304
• no wear ring
• shaft, 304
• EPDM O-rings for pump cover and seal cover
• single shaft seal arrangement
• BQQE shaft seal
• 60 HP motor, US DOE regulated motor, 2-pole, 60 Hz.
Example 2: NB 060-135/12.91-12.76AAEG7TAESDQQEWX4
shows an NB 060-135 pump with these characteristics:
• 12.91-12.67 inch closed impeller, conical trim
• hydraulic version A
• pump without sensor
• grease-lubricated heavy-duty bearing design
• with certificate/report
• ANSI flange to ASME/ANSI B16.1
• Class 300, 363 PSI
• ductile iron pump housing, ASTM 70-50-05
• CD4MCuN/A890 impeller
• no wear ring
• shaft, 2205
• EPDM O-rings for pump cover and seal cover
• single shaft seal arrangement
• DQQE shaft seal
• 125 HP motor, US DOE regulated motor, 4-pole, 60 Hz.
7
English (US)