14
package. An indicator of the breakdown of a lubricant is the increase in the TAN (Total Acid Number),
and a change in the base viscosity of ten percent.
Several things are happening as the lubricant goes through the unit. First, it is absorbing frictional
energy in the form of heat. This heat has to be dissipated through either surface contact with cooler
materials, or in a rest volume of lubricant. While reducing the friction, the lubricant is also going through
a shearing process and the molecular structure is broken down.
The result is that the lubricant will begin to thicken because of the shorter molecular chains and the drop
out of additive packages. The thickened lubricant will cause more drag, increasing the friction and heat,
and further degrading the lubricant.
Operation of the booster (environment, run time, speed, and pressure) has a direct effect on duty
cycles. Our published cycles are based on worst-case conditions.
5.3.3 HAZARDS ASSOCIATED WITH BREAKDOWN OR IGNITION OF LUBRICATION
DANGER
There is a risk associated with the lubrication media breaking down and
resulting in a hazardous fluid or vapor. There may also be a hazard
associated with the ignition of the lubrication media. Refer to the lubrication
manufacture’s applicable instruction for safety precautions.
5.4 PIPING CONNECTIONS
NOTE
Remove the protective covers from the inlet and outlet ports and inspect for
dirt and foreign material.
WARNING
Pipe loading on the booster should be negligible as pipe loading can cause
distortion of the booster. Use proper supports and pipe hangers to assure
that there is no loading.
Manifolding should be no smaller than the pump connections in order to minimize restrictions to gas flow.
Accurately align the mating flanges to the inlet and discharge manifolding to prevent distortion of the booster
housing. Temporarily fit a fine wire mesh filter at the suction port if solid particles are likely to be entrained
into the air stream and remove the filter when particles no longer appear. This is especially desirable on
new installations and when manifolds have been welded. The manifolding to and from the booster should
be fitted with flexible connections to isolate vibrations, absorb expansion and contraction due to thermal
change, and to absorb misalignment differences. If the booster is to be water cooled, connect a clean
supply to the ¼” NPT connection on the seal adapter housing adjacent to the drive shaft. The drain line will
be connected on the bottom of the non-drive end reservoir, see Figure 4 for connection locations. Care
should be taken to not over tighten or loosen the bushing for the cooling coil connection. The bushing
should be held in place as additional fitting and plumbing is performed.
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