4 Description of the Pump (Set)
17 of 64
KWP-Bloc
Fig.2: Design with wear plate for: GNNG, GDNG, DDDD
▪ Pump casing fitted with a wear plate
▪ Clearances
Fig.3: Clearances
1 Impeller type K 2 Impeller type O
3 Impeller type F
Installation types
▪ Horizontal installation
▪ Vertical installation
Shaft seal
▪ Uncooled mechanical seal with/without oil reservoir
5)
Pump sets for vertical installation are generally fitted with an oil reservoir. For
horizontal installation, an oil reservoir can be fitted as an option.
Only single mechanical seals are fitted in the conical discharge chamber.
Table7: Mechanical seal makes
Material variant
of pump
Design Supplier Type Material
combination to
EN12756
GNNG
GDNG
DDDD
Single,
unbalanced
Burgmann
6)
MG1 - G6 Q
1
Q
1
VGG
Q
1
Q
1
EGG
John Crane 2100 Q
5
Q
5
VGG
Q
5
Q
5
EGG
Single, balanced KSB 4 KBL U
1
U
1
VGG
1
5) Pump sets for vertical installation are fitted with an oil reservoir. For horizontal installation, an oil reservoir can be fitted as
an option.
6) Other mechanical seal makes to EN12756 (DIN24960), version I1k possible