70
CHAPTER 4: OPERATION
087-0067 REV A
SCOTT SAFETY
Storage Overview
The compressor may be configured to direct compressed and purified breathing air to
an optional air storage unit. Storage units may meet peak demands for compressed air
without requiring of a full time operation of a compressor. Stored air may be used to
carry on operations if a compressor fails, loses power or when air is needed when a
compressor is not available. All storage units are equipped with service values and
safety relief gauges.
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Storage cylinders - ASME cylinders do not require hydrostatic testing, but include
a drain valve and gauge. If installed, safety valves on ASME cylinders must be
tested on an annual basis. ASME safety valves can be identified by a tag or label
showing traceability to the National Bureau of Standards (NB) and a tamper
evident seal. Some Scott storage systems with ASME storage cylinders are
protected by single use rupture disks that cannot be tested. Each ASME cylinder
has the capacity to store 454 standard cubic feet (SCF) at 5K PSI, or 525 SCF at
6K PSI. Refer to specific ASME safety standards for additional testing
information.
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Storage configuration - Storage receivers can be configured together as a single
bulk storage bank (Bulk Storage), or separately in a cascade system (Automatic
Cascade). When configured as a single bank, cylinders are “piped” together into a
single volume. Storage pressure is indicated by a single gauge on the main control
panel or on the HMI, depending on the model. Cylinders in a cascade system are
plumbed separately which allows for more efficient use of compressed air since
each cylinder can be isolated when accessing system air.
The fill station may be installed with storage cylinders or a manual or an automatic
cascade system. See “
” on page 74. Read and follow all safety labels on the unit.
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Страница 73: ...Configuring the System 51 SCOTT SAFETY 087 0067 REV A Figure 27 Override Status Screen ...
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Страница 120: ...Monroe Corporate Center P O Box 569 Monroe NC 28111 Telephone 800 247 7257 FAX 704 291 8330 Web www scottsafety com ...