SPP Pumps Eurostream - Manual (Page 10)

Manual No/Rev
W22-001E / 9
Operators Instructions for
Eurostream Centrifugal Pumps
Our policy is one of continuous improvement and we reserve the right to alter specifications at any time
Page 10 of 20
sleeve, unless necessary for examination or
cleaning.
9. To remove the stationary element of the
mechanical seal:
a) For pumps fitted with bolted casing cover,
remove stud nuts (92.02) from casing cover
studs (90.22).
b) For pumps, fitted with a clamped casing
cover, and to continue dismantling pumps
fitted with bolted casing covers:
Remove the casing cover (16.1), complete
with the stationary element of mechanical
seal (43.3) from the supporting frame (34.4)
by carefully prising apart with screwdrivers or
similar tools which fit in recess between the
casing cover (16.1) and the supporting frame
(34.4).
Care must be taken to ensure that the
casing cover (16.1) does not damage the
shaft (21.1).
6.4.3 During and After Dismantling
1. All parts must be carefully cleared and tested
for wear. Recondition or replace parts where
necessary.
2. Wear Ring Diameters.
Pump Suction Side Drive Side
Size Dia. 1 Dia. 2 Dia. 1 Dia. 2
Tolerance -
0.1mm
F8 -
0.1mm
F8
32/13
32/16
69.7 70 N/A N/A
32/20
32/26
40/13
40/16
40/20
79.7 80 N/A N/A
40/26
50/13
50/16
50/20
94.7 95 N/A N/A
50/26
65/13
65/16
65/20
65/26
114.7 115 N/A N/A
65/32 129.6 130 124.6 125
80/16
80/20
80/26
129.6 130 N/A N/A
80/32 139.6 140 134.6 135
100/20
100/26
159.6 160 N/A N/A
100/32 159.6 160 154.6 155
125/26 179.6 180 N/A N/A
6.4.4 Re-assembly
1.
Ensure that all parts to be fitted are clean
and free from burrs, with screw threads and
abutting faces clear and free from damage
2.
Lubricate the outer surface of the stationery
element of the mechanical seal (43.3) with
soapy water or silicone grease (not oil),
ensure that it is square to its housing in the
casing cover (16.1) and push home by hand,
taking care not to apply excessive force or to
damage the sealing surface. Check that it
has been seated fully and that the sealing
surface is clean and undamaged.
3.
Refit the casing cover (16.1) to the support
frame (34.4). for bolted covers only, fit the
retaining nuts (92.02), tightening them
uniformly and in diagonally opposed pairs
sequence.
4.
To fit the rotating element of the mechanical
seal (43.3), either:
a) For pumps fitted with stainless steel shaft
sleeve (52.3).
Lubricate the inner and outer surfaces of the
sleeve lightly with silicone grease. Locate
spring and spring holder of mechanical seal
over shaft sleeve (52.3).
Slide seal face assembly along sleeve (52.3)