Alfa Laval DuraCirc Range, Instruction Manual

Page: 52 / 69

7
Double flushed mechanical seal
Item Description
101 Square Ring (Yellow ID Mark)
102 Rotary Seal Face
103 Static Seal Face
104 Squad Ring (White ID Mark)
105 Static Assembly
106 Static Assembly (Outboard)
107 Static O-ring (Outboard)
108 Static Seal Face (Outboard)
109 Rotary Assembly (Outboard)
110 Rotary O-ring (Outboard)
Seal removal
NOTE
It is recommended to mark the positions of
the rotors and rotorcase (e.g. Top/Bottom or
Left/Right) prior to removal to the parts are
refitted in the same position.
Ensure the flush system has been de-
pressurised and is isolated before continuing.
3206-0048
110
106
107
109
108
105
101
102
104
103
8
1. Follow instructions 1. to 4. as for the
single seal disassembly.
2. Remove the flush pipework to the
rotorcase (2) and then remove the
rotorcase placing it face down on a
suitable surface.
3. Extract the outboard static seal face (108)
and static O-ring (107) from the outboard
static assembly (106).
4. Remove the outboard static seal
assembly (106) from the rear of the
rotorcase if replacement is required.
5. Remove the outboard rotary assembly
(109) and rotary O-ring (110) from the
shafts (51 and 52).
3206-0079
200002348-1-EN-GB 52
5 Maintenance EN