Barmesa Pumps 2-125 HP @ 1750 y 3500 RPM, Инструкция по установке, эксплуатации и обслуживанию

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9
1 - Ceramic seat
2 - Seal seat Buna-N
3 - Inox. retainer
4 - Inox. jacket
5 - Inox. spring
6 - Carbon ring
7 - Elastomer Buna-N
8 - Inox. washer
2
1
3
6
4
5
7
8
Figure 7 Mechanical Seal - Sectional View.
Intermediate
coupling
Shaft
sleeve
Shaft
Seal
stationary
Seal
rotating
member
Spring
Impeller
Impeller
lockwasher
Lockwasher
Hex.
screw
Figure 8 Mechanical Seal - Assembly.
Service
Step 1: Install the intermediate
coupling
if it was previously
removed. Make sure the shaft and
cavities, where will it seats, are clean.
The shaft sleeve should not be sharp,
but a radius of about 1/32". It is
recommended that lightly polish the
area of the shaft. If the shaft and it
radius are perfectly polished, the seal
can be relatively easily installed.
Step 2: Install the seat assembly (1
and 2) on the inside of the
intermediate
coupling, slightly
moistening with water on the rubber
parts
(do not use grease or oil) . This
assembly should be done only
manually, meaning without the use
of an instrument.
Step 3: Install the rotating portion of
the seal without the spring. Moisten
the arrow and the inside of the seal
with some water
(do not use grease
or oil) . With clean, dry hands, insert
the rotating portion to the shaft,
sliding it abuts the stationary seat.
Once the seal is in place, insert the
spring (5).
Step 4: Place the impeller and
washers; tighten the hex screw.
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