21
The amount of water required depends on the inlet air/gas temperature, inlet vacuum, water temperature,
and the maximum discharge temperature desired. Check with the factory or sales representative for
additional guidance.
6.7.1 OPERATION
1. Check oil level in sight glass of booster and assure all fittings are tight.
2. Check the water injection system to assure water is available.
3. Operate the booster dry for a few minutes at no load to check correct rotation and smooth operation.
4. Turn water on and adjust flow as recommended for the individual booster. Assure water discharges
freely from the outlet piping.
5. Apply vacuum and observe operation at the desired inlet condition.
6.7.2 SHUTDOWN
1. The booster can be shutdown for brief periods by relieving the inlet vacuum, shutting the water off, and
then stopping the unit.
2. Rusting during a slightly longer shutdown period can be avoided by operating the booster under a
partial vacuum without the water injection, allowing the booster to heat within safe limits. The heat will
tend to drive off residual moisture.
3. For extended shutdown, oil may be injected into the inlet of the heated booster just prior to shutting
the booster down. The oil will provide a protective coating on the internals. Insure that the water is
completely shut off after shutdown.
4. Special coatings or platings are available to minimize rusting or corrosion in applications where units
can remain wet.
Vertical flow units with two-lobed, plugged rotors should always be used. Always orient system such that
the booster intake is at the top and discharge at the bottom.
CAUTION
Water injection can cause lime build-up on rotors. Check water supply for
hardness. The use of water softeners, other chemicals, or distilled water
may be necessary to prevent or remove this build-up. However, due to the
wide variations in mineral content, pH, and chemical content of water that
can be injected, Tuthill Vacuum & Blower Systems cannot be responsible
for damage which may result should this build-up occur. Units should be
inspected regularly to determine any problems.
NOTE
For liquid injection other than water, consult the factory.
Содержание M-D Pneumatics 7010
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