Flowserve Tandem Seal - Manual (Page 4)

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2.7 Install the compression unit 45 for the inner seal on the sleeve and locate
the collar 5 in relation to the established scribe mark C, the setting dimen-
sion given on the seal assembly drawing. Lock the collar to the sleeve by
tightening the set screws S .
2.8 Place the seal ring 3 and shaft packing P for the inner seal on the sleeve
and in its proper position as shown. (Duraflon ® shaft packing should be
installed on the sleeve individually and with care to avoid nicks or damage
that could cause a leak.)
2.9 Place the stationary insert 2 and insert mounting 6 for the inner seal on
the sleeve.
2.10 Wipe the face of the seal ring and stationary insert clean with alcohol.
2.11 Install the compression unit 45 and/or collar 5 for the outer seal on the
sleeve and locate the collar 5 at the established scribe mark B. Lock the
collar to the sleeve by tightening the set screws S .
2.12 Place the seal ring 3A and shaft packing P1 for the outer seal on the
sleeve and in its proper position as shown. (Duraflon ® shaft packing should
be installed on the sleeve individually and with care to avoid nicks or dam-
age that could cause a leak.)
2.13 Wipe the face of the seal ring and stationary insert clean with alcohol.
Note: If the outer seal is mounted on the shaft rather than on the shaft sleeve, it
will be necessary to substitute the following installation instructions for the
above:
2.11A Place the outer seal ring 3A and shaft packing P1 on the shaft and in
its proper position. (Duraflon ® shaft packing should be installed
individually and with care to avoid nicks and damage that could cause a
leak.)
2.12A Wipe the face of the seal ring and insert clean with alcohol.
2.13A Install the compression unit 45 and/or collar 5 for the outer seal on
the shaft and locate the collar at the established scribe mark B. Lock
the collar to the shaft by tightening the set screws S . Then place the
insert holder IH over the shaft and into its proper position in the gland
ring as shown on the seal assembly drawing.
2.14 While placing the sleeve into its proper position over the shaft, position the
inner stationary insert 2 into the insert holder IH , making sure to align the
insert holding pin with the slot or hole in the insert holder if one is included.
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