FOR MODELS: JGW, JGR AND JGJ SECTION 3 - START UP
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Maximum Allowable Working Pressure
All Ariel Compressor Cylinders have a "Maximum Allowable Working Pressure
(MAWP)." The MAWP, the hydrostatic test pressure, and the test date are stamped on
the end of every Ariel Cylinder (see Figure 1-6: on page 1-7).
API Specification 11P, Second Edition, November 1989, Paragraph 1.10.4 defines
"Maximum Allowable Working Pressure" as follows:
"Maximum allowable working pressure (MAWP) is the maximum continuous
pressure for which the manufacturer has designed the equipment (or any part to
which the term is referred), when handling the specified fluid at the maximum
specified temperature."
API SPEC 11P, paragraph 2.5.1.1 defines “Maximum Allowable Working Pressure” for
Compressor Cylinders as follows:
"The maximum allowable working pressure of the cylinder shall exceed the
rated discharge pressure by at least 10 percent or 25 psig
1
, whichever is
greater."
API SPEC 11P, paragraph 1.10.5 defines the rated discharge pressure as follows:
"Rated discharge pressure is the highest pressure required to meet the condi-
tions specified by the purchaser for the intended service."
CAUTION
OPERATING CONDITIONS MUST NOT EXCEED CYLINDER
DESIGN LIMITATIONS.
1. (172 kPa)
!