KIMA00H1 (0204)
15
2.6
Air
Discharge
Piping
(Figure 16)
DO NOT reduce the pipe size of the connections on the unit.
The compressor is equipped with an internal check valve. Compressor
discharge pressure is controlled by a system pressure sensing line
located at the aftercooler outlet.
)
NOTICE:
DO NOT install an additional check valve between the
compressor and the air distribution piping. Doing so will prevent
correct compressor operation and may damage the compressor.
An external moisture separator is provided and must be mounted on
the air discharge of the compressor. A flexible connection is required
between the outlet of the separator and the air system piping.
The discharge piping must be properly supported to prevent strain on
the compressor piping or cabinet.
For safe servicing of the compressor a manual isolating valve must be
installed in the discharge piping at a convenient location close to the
unit.
It is possible that additional condensation can occur in the
downstream piping. Vertical pipe runs, and low points in the piping
system, should be equipped with drop legs for moisture traps.
If multiple compressors are piped into a common discharge header,
the connections from the compressors should be at the top of the
header. The header should be equipped with drop legs for moisture
traps.
2.7
Air
Receiver
(Figure 18)
A properly sized air receiver should be located as close to the
discharge of the compressor as possible, and before any air treatment
accessories, such as filters and dryers.
The piping from the compressor discharge should be connected near
the bottom of the receiver and piping to the plant system should be
connected near the top of the receiver. The receiver must have
provisions for draining accumulated condensate.
WARNING:
The receiver must be equipped with an approved (ASME)
safety valve. The compressor owner is responsible for the proper
sizing, installation, and maintenance, and for periodic inspection and
testing, of the safety valve.
Generally the receiver should be sized for a minimum of 2 gallons of
storage for each cubic foot of compressor air delivery. The size of the
air receiver will directly affect the load cycle time of the compressor.
Increasing the capacity of the air system will result in fewer load
cycles, reducing wear on the compressor components.
)
NOTICE:
It is the compressor owners responsibility to:
1) Insure that the receiver, and the receiver installation, comply with
the applicable local, state, and national codes.
2) To obtain the proper licenses for the receiver.
3) Arrange periodic inspections required to maintain those licenses.
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