FUNCTIONAL DESCRIPTION OF PETROLEUM LABORATORY SUPPORT SYSTEMS - continued.
Air System (Refer to Figure 1-6). The air system consists of the air compressor, air tank, pressure switch,
moisture trap, and associated piping and valves. The air compressor is located in the mechanical room and operates
on 208V, 60Hz, 3-phase power supplied from A15CB6 located in POWER PANEL NO. 2. It can supply air at 120 psi
to the system. In automatic operation, the compressor is controlled by a pressure switch which shuts it off when the
pressure has reached 120 psi and turns it back on when the pressure in the system drops to 60 psi. The air tank
relief valve is set to operate at 150 psi. Air piping is color coded green and valves are color coded orange. Air
supply valves are located next to the distillation unit, behind the viscosity baths, above the centrifuge, in the fume
hood, at the manometer, the bomb manifold, and the gage test fitting.
Vacuum System (Refer to Figure 1-6). The vacuum system consists of the vacuum pump and associated
piping and valves. The vacuum pump is located in the mechanical room and operates on 110V, 60Hz, single-phase
power supplied from A15CB9 located in POWER PANEL NO. 2. It has a free air capacity of 58 liters per minute and
supplies vacuum where required. Vacuum piping and valves are color coded yellow. Vacuum supply valves are
located behind the viscosity baths, above the centrifuge, and in the fume hood.
Water System (Refer to Figure 1-6). The water system consists of the water pump, pressure switch, water
tank, water surge tank, filter, water cooler, water heater and associated piping and valves. The water pump operates
on 110V, 60 Hz, single-phase power supplied by A15CB8 located in POWER PANEL NO. 2. It is controlled by the
pressure switch. It turns on when a water outlet is opened and off when the outlets are all closed. The water surge
tank removes oscillations from the system while the water tank acts as the system supply source. The water cooler
operates on 110V, 60 Hz, single-phase power supplied by A15CB7 located in POWER PANEL NO. 2. The water
heater operates on 110V, 60 Hz, single-phase power supplied by A1CB17 located in panel board 1. The system may
be supplied with water from an outside pressurized source, from an outside unpressurized source, by using the
system pump, or by its own water tank. Water supply piping and valves are color coded blue. Water return piping
and valves are color coded white. Drain piping is colored black. Water supply valves are located at the distillation
unit, the RVP Bath, the JFTOT, the sink (both hot and cold), the freezer, the laboratory ovens, the viscosity baths,
and the fume hood. Water return valves are located at the freezer, the laboratory ovens, the viscosity baths, and the
Water Still. The water still is electrically operated and supplies pure water for use in the laboratory. It is
located on the curbside wall and operates on 1lOV, 60Hz, single-phase power supplied from a convenience outlet.
Drain System. The drain system consists of valving and piping required to route condensate and waste water
from the sink and equipment to one of two deck drains located in the Petroleum Laboratory. The sink and most of
the equipment in the laboratory compartment drain through the trailer floor to a quick-disconnect coupling and hose.
The equipment located in the mechanical room drains to the forward deck drain. The system is provided with a drain
tank mounted under the sink which contains a submersible pump. Waste water from the electric still, RVP bath, and
return water (when the system is receiving water from an outside source), drains into the tank where it is pumped to
the forward deck drain.