CR, CRI, CRN, CRE, CRIE, CRNE - Grundfos Canada
CR, CRI, CRN, CRE, CRIE, CRNE - Grundfos Canada
CR, CRI, CRN, CRE, CRIE, CRNE - Grundfos Canada
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Operating and inlet<br />
pressure<br />
<strong>CR</strong>, <strong>CR</strong>I, <strong>CR</strong>N, <strong>CR</strong>E, <strong>CR</strong>IE, <strong>CR</strong>NE<br />
Operating range of the shaft seal<br />
The operating range of the shaft seal depends on<br />
operating pressure, pump type, type of shaft seal and<br />
liquid temperature. The following curves apply to clean<br />
water and water with anti-freeze liquids. For selecting<br />
the right shaft seal, see List of pumped liquids on<br />
page 74.<br />
<strong>CR</strong> 1s - <strong>CR</strong> 20<br />
p<br />
[bar]<br />
25<br />
20<br />
15<br />
10<br />
5<br />
0<br />
p<br />
[psi]<br />
400<br />
300<br />
200<br />
100<br />
HQQE<br />
0<br />
-40 0 40 80 120 160 200 240 t [°F]<br />
Fig. 14 Operating range of standard shaft seals for<br />
<strong>CR</strong> 1s - <strong>CR</strong> 20<br />
<strong>CR</strong> 32 - <strong>CR</strong> 150 (3.0-60 Hp)<br />
p<br />
[bar]<br />
30<br />
25<br />
20<br />
15<br />
10<br />
5<br />
0<br />
HQQE<br />
HQQV<br />
HQQE<br />
p<br />
[psi]<br />
500<br />
HUBE / HUBV HUBE<br />
400<br />
300<br />
KUHE / KUHV<br />
200<br />
KUBE / KUBV KUBE<br />
KUUE / KUUV<br />
100<br />
0<br />
-40 0 40 80 120 160 200 240 t [°F]<br />
KUUE<br />
KUUE<br />
KUUV<br />
-40 -20 0 20 40 60 80 100 t [°C]<br />
TM02 7537 3703<br />
TM02 7873 0604<br />
Shaft<br />
seal<br />
Description<br />
HQQE<br />
O-ring (cartridge) (balanced seal),<br />
SiC/SiC, EPDM<br />
HBQE<br />
O-ring (cartridge) (balanced seal),<br />
Carbon/SiC, EPDM<br />
HQQV<br />
O-ring (cartridge) (balanced seal),<br />
SiC/SiC, FKM<br />
HUBE<br />
O-ring (cartridge) (balanced seal),<br />
TC/carbon, EPDM<br />
HUBV<br />
O-ring (cartridge) (balanced seal),<br />
TC/carbon, FKM<br />
KUBE<br />
Bellows, metal (cartridge),<br />
TC/carbon, EPDM<br />
KUBV<br />
Bellows, metal (cartridge),<br />
TC/carbon, FKM<br />
Bellows, metal (cartridge),<br />
KUHE TC/Carbon with embedded TC,<br />
EPDM<br />
Bellows, metal (cartridge),<br />
KUHV TC/Carbon with embedded TC,<br />
FKM<br />
KUUE<br />
Bellows, metal (cartridge), TC/TC,<br />
EPDM<br />
KUUV<br />
Bellows, metal (cartridge), TC/TC,<br />
FKM<br />
Note: TC= tungsten carbide<br />
See section Lists of variants - on request on page 83,<br />
in case of extreme temperatures:<br />
• low temperatures down to –40 °F or<br />
• high temperatures up to +356 °F.<br />
Max. temp.<br />
range [ °F]<br />
–22 °F to +248 °F<br />
+32 °F to +248 °F<br />
–4 °F to +194 °F<br />
+32 °F to +248 °F<br />
+32 °F to +194 °F<br />
+32 °F to +248 °F<br />
+32 °F to +194 °F<br />
+32 °F to +194 °F<br />
+32 °F to +194 °F<br />
–22 °F to +194 °F<br />
–4 °F to +194 °F<br />
Fig. 15 Operating range of standard shaft seals for<br />
<strong>CR</strong> 32 - <strong>CR</strong> 150 (3.0-60 Hp)<br />
<strong>CR</strong> 120 - <strong>CR</strong> 150 (75-100 Hp)<br />
p<br />
[psi]<br />
400<br />
300<br />
200<br />
100<br />
HQQE<br />
HQQV<br />
HQQE<br />
HQQE/V<br />
HBQE/V<br />
HQQE<br />
HBQE<br />
0<br />
-80 -40 0 40 80 120 160 200 240 t [°F]<br />
TM04 4415<br />
Fig. 16 Operating range of standard shaft seals for<br />
<strong>CR</strong> 120 - <strong>CR</strong> 150 (75-100 Hp)<br />
19
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