Installation, Operating and Maintenance Instruction
3.3 Shaft Sealing
3.3.1 Structure of the mechanical seal
This shaft seal is a single mech. seal with installation
dimensions according to EN 12756 (DIN 24960)
design "K". API plan 02 / ISO plan 00.
No additional flushing of the seal chamber is
necessary. The seal casing where the mechanical
seal is located must always be filled with liquid.
Index of parts:
3
Impeller
18/G
Casing cover
24
Shaft
412
Elbow sleeve
447
Spring
472
Rotating seal ring
474
Disc
475
Stationary seal ring
483
Balg
484.1
Elbow ring
487
Towing
DR
Orifice
Pump size
L 65-315, L 80-315
L 100-160, L 100-200
L 100-250, L 100-315
L 125-250
L 125-200, L 125-270
L 125-315, L 150-250
L 150-315
L 80-400, L 100-400
L 125-400, L 150-400
*) ... At these pump sizes l
+spacer sleeve is 70,5mm.
1k
The mentioned dimensions refer to mechanical seals acc. EN 12756 with length l
Dimensions in mm without obligation! - This leaflet is subject to alteration without notice!
LN 100-ger/fr/eng
Artikel No. 771073301
L
Bearing
d
d
d
1
7
L
bracket
32L
40
58
32
42L
50
70
42 47,5
42L
50
70
42 118*)
Page 50
For a description of materials and operational ranges
of the mech. seals supplied, please refer to the data
sheet in the Operation Instructions and order
confirmation.
For the internal structure of the mechanical seal see
the following sectional drawings.
Index of parts:
1
Impeller
18/G
Casing cover
24
Shaft
GD1
Spring with towing effect
GD2
O-ring (Shaft)
GD3
Rotating seal ring socket
GD4
O-ring (Rotating seal ring)
GD5
Rotating seal ring
GD6
Stationary seal ring
GD7
O-ring (Stationary seal ring)
l
Pump size
1k
LN 32-125, LN 32-160
LN 32-200, LN 40-125
45
LN 40-160, LN 40-200
LN 40-250, LN 50-125
LN 50-160, LN 50-200
LN 50-250, LN 65-125
LN 65-160, LN 65-200
LN 80-160
LN 65-250, LN 80-200
LN 80-250
.
1k
Model L, LN
LN
Bearing
d
d
d
1
7
L
bracket
24LN
22
37
18 37,5
32LN
28
43
24 42,5
Revision 02
Issue 10/2006
l
1k