Wright Flow Technologies 114, Инструкция по установке, эксплуатации и обслуживанию

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Installation, Oper ation & M aintenance M anual
TR-C Series Centrifugal Pump
16
TR-C-
M02
A
SS
EM
B
LY
IMPORTANT: When you mount the backplate onto the adapter, the seal may supply
resistance. If this resistance is too much, check the seal assembly and be sure the drive
collar has been located correctly. The efficiency of the
“E” seal relies on the proper installation
of the drive collar. The space in the stuffing box should contain both carbons in a balanced
state of pressures and distances.
Figure I.
The next step is to close the stuffing box. To do this, you need to pull the follower against the
backplate. Use the machine screws (
17A ) and lock washers ( 17C ) to close it, tightening until
the lock washers are flattened. The screws on a circular arrangement must be tightened
across in varying positions.
It is recommended to set the backplate so that the 1/8 NPT drill-holes on the stuffing box, point
upward and with a 45º inclination from the horizontal
plane, as shown in
Figure J.
The water should enter through one connection and
leave through another, moving through the stuffing
box and in the process, cooling it.
The ideal quantity of water will depend upon
the temperature of your application. For vacuum
applications it is recommended to use a flow of 10
drops per minute, while maintaining a temperature of
176º F inside the seal; around 3 gallons per hour are
required.
IMPORTANT: When servicing pumps with
“D”, ”DG”,
”F”, or “E” seals, inspect all disposable parts
such
as: carbon seals (be sure they have no bumps or
scratches), o-rings (they should maintain a circular form
and should not be bitten). In the case of abrasive fluids, use EPDM material for all gaskets
and o-rings. When dealing with high temperatures, use Viton.
Springs are not subject to wear because of tension or compression, except in extreme
cases. Carbon seals made of silicone, tungsten, or ceramic are very fragile but resist
abrasive and corrosive fluids.
45º