Grundfos NB Original Installation And Operating Instructions page 4
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Also See for NB:
- Installation and operating instructions manual (240 pages) ,
- Instructions manual (108 pages) ,
- Safety instructions (36 pages)
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Mechanical shaft seal
Shaft seal diameter [mm]
Rubber bellows seal, metal-impregnated carbon/silicon carbide,
EPDM
Rubber bellows seal, metal-impregnated carbon/silicon carbide,
FKM
Rubber bellows seal, silicon carbide/silicon carbide, EPDM
Rubber bellows seal, silicon carbide/silicon carbide, FKM
Bellow seal, type B, with reduced seal faces, silicon carbide/
silicon carbide, EPDM
Bellow seal, type B, with reduced seal faces, silicon carbide/
silicon carbide, FKM
O-ring seal with fixed seal driver, silicon carbide/silicon carbide,
EPDM
O-ring seal with fixed seal driver, silicon carbide/silicon carbide,
FKM
O-ring seal with fixed seal driver, silicon carbide/metal-impregnated
carbon, EPDM
O-ring seal with fixed seal driver, silicon carbide/metal-impregnated
carbon, FKM
Rubber bellows seal, silicon carbide/synthetic resin-impregnated
carbon, EPDM
O-ring seal, balanced, metal-impregnated carbon/silicon carbide,
FXM
Rubber bellows seal, synthetic resin-impregnated carbon/silicon
carbide, EPDM
* –25 °C to 60 °C
28, 38
Temperature
Code
range
BAQE
0 °C to +120 °C
BAQV
0 °C to +90 °C
BQQE
0 °C to +90 °C
BQQV
0 °C to +90 °C
GQQE
–25 °C to +90 °C
GQQV
–20 °C to +90 °C
AQQE
0 °C to +90 °C
AQQV
0 °C to +90 °C
AQAE
0 °C to +120 °C
AQAV
0 °C to +90 °C
BQBE
0 °C to +140 °C
DAQF
0 °C to +140 °C
BBQE
0 °C to +120 °C
48
55
60
Maximum pressure
[bar]
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16*
16*
16*
16
16*
16*
16*
25
25
16
16
25
25
16
16
25
25
25
25
25
25
25
25
16
-
-
-
25
25
25
25
16
16
16
16
9
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