Alfa Laval GJ BB, Инструкция по эксплуатации

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4 Installation
10
Read the instructions carefully and pay special attention to the warnings! Always check the tank cleaning machine before
operation.
Step 6
Filters and Strainers
As an accessory, Alfa Laval Gamajet sells a strainer to be used in conjunction with the BB. The main component is a heavy
duty Y-Strainer that allows for on-line cleaning of the screen without disassembly of the surrounding plumbing. By simply
opening the included ball valve, the heavy particulate that has collected on the screen can be blown-down. The screen can
also be visually inspected by simply removing the cover of the strainer and, again, without disassembly of the piping.
If Alfa Laval Gamajet
’s strainer is not used, the systems should be equipped with a filter or strainer that will trap solids 0.006”
(150 micron, 100 mesh) or larger . The use of a filter ensures adequate removal of particles and debris that can come from
hard water, dirty heating coils, line sediment, and well water. A supply of clean wash fluid to the BB and, more importantly,
the barrel is a must.
Step 7
Capacity of Supply Pump
In the majority of cases a positive displacement (PD) style pump (i.e. a pressure washer, piston pump, plunger pump, and
mechanical diaphragm pump) will supply the wash fluid to the Alfa Laval GJ BB. PD pumps are fixed volume pumps whose
flow rate is dependent upon the rotational speed of the pump; the pumps also have a pressure rating which is the
maximum
operating pressure. Note: Do not confuse the maximum operating pressure of a PD pump with the actual operating
pressure, the actual operating pressure is dictated by the fixed flow rate of the pump and the Alfa Laval GJ BB /
plumbing system
. If a PD pump is used, the Alfa Laval GJ BB should be sized to, first, match the flow capability of the pump
and, second, not exceed the pump's maximum operating pressure (taking the pressure rating of the plumbing system into
account, also).