Grundfos NB - General Information; Hazard Statements; Notes; Product Introduction

9
Mechanical shaft seal
* –25 °C to 60 °C
Shaft seal diameter [mm] Code
Temperature
range
28, 38 48 55 60
Maximum pressure
[bar]
Rubber bellows seal, metal-impregnated carbon/silicon carbide,
EPDM
BAQE 0 °C to +120 °C 16 16 16 16
Rubber bellows seal, metal-impregnated carbon/silicon carbide,
FKM
BAQV 0 °C to +90 °C 16 16 16 16
Rubber bellows seal, silicon carbide/silicon carbide, EPDM BQQE 0 °C to +90 °C 16 16 16 16
Rubber bellows seal, silicon carbide/silicon carbide, FKM BQQV 0 °C to +90 °C 16 16 16 16
Bellow seal, type B, with reduced seal faces, silicon carbide/
silicon carbide, EPDM
GQQE –25 °C to +90 °C 16 16* 16* 16*
Bellow seal, type B, with reduced seal faces, silicon carbide/
silicon carbide, FKM
GQQV –20 °C to +90 °C 16 16* 16* 16*
O-ring seal with fixed seal driver, silicon carbide/silicon carbide,
EPDM
AQQE 0 °C to +90 °C 25 25 16 16
O-ring seal with fixed seal driver, silicon carbide/silicon carbide,
FKM
AQQV 0 °C to +90 °C 25 25 16 16
O-ring seal with fixed seal driver, silicon carbide/metal-impregnated
carbon, EPDM
AQAE 0 °C to +120 °C 25 25 25 25
O-ring seal with fixed seal driver, silicon carbide/metal-impregnated
carbon, FKM
AQAV 0 °C to +90 °C 25 25 25 25
Rubber bellows seal, silicon carbide/synthetic resin-impregnated
carbon, EPDM
BQBE 0 °C to +140 °C 16 - - -
O-ring seal, balanced, metal-impregnated carbon/silicon carbide,
FXM
DAQF 0 °C to +140 °C 25 25 25 25
Rubber bellows seal, synthetic resin-impregnated carbon/silicon
carbide, EPDM
BBQE 0 °C to +120 °C 16 16 16 16