Parker Phastite PH-10-4N-TMS, Installation Manual

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14
Table 5 - Factors used to determine tubing pressure
rating at elevated temperatures.
Table 6
Tubing ordering guidelines
Tubing for use with Parker instrument fittings must be carefully ordered to insure adequate quality for good
performance. Each purchase order must specify the material, nominal outside diametre, and wall thickness. Ordering
to ASTM specifications insures that the tubing will be dimensionally, physically, and chemically within strict limits. Also,
more stringent requirements may be added by the user. All tubing should be ordered free of scratches and suitable for
bending. A purchase order meeting the above criteria would read as follows: “1/2 x .049 316 stainless steel, seamless,
or welded and redrawn per ASTM A-249. Fully annealed, 80 Rb or less. Must be suitable for bending; surface
scratches, and imperfections (incomplete weld seams) are not permissible.” Table 6 lists specific ordering information
for each material.
Pressure rating at elevated temperatures
To determine allowable pressure at elevated temperatures,
multiply the allowable working pressure from Table 1 to 4
by the factor shown in Table 5.
Example: 1/2” x .065” wall 316 stainless steel tubing has
a working pressure of 5,100 psi @ room temperature. If
the system were to operate at 800°F, a factor of 80% or
0.80 would apply (see Table 5) and the “at temperature”
system pressure would therefore be 5,100 x 0.80 =
4,080 psi.
These factors are based on ASME B31.3 derating factors
for ASTM A269 tubing. They are derived from table A-1,
basic allowable stresses in metals.
Note on selection
The pressure rating information presented, is intended as a useful guide to demonstrate the performance potential of
the Phastite
®
connector when properly installed according to Parker’s recommended practices and to assist the user in
the proper selection of tube and fitting for a particular application. Every effort has been made to ensure the information
in this document has been clearly presented. It is the responsibility of the user and the system designer to ensure the
appropriate selection and specification of tube and fitting and that the specified assembly meets the requirement of the
system or application.
°F °C 316 SS
INCONEL ®
Alloy 625
INCOLOY ®
Alloy 825
Super Duplex
Z100
100 38 1 1 1 1
200 93 1 0.93 0.92 0.99
300 149 1 0.88 0.87 0.94
400 204 0.97 0.85 0.83 0.90
500 260 0.90 0.82 0.79 0.90
600 315 0.85 0.79 0.76 0.88
700 371 0.82 0.77 0.74 -
800 426 0.80 0.75 0.73 -
900 482 0.78 0.74 - -
1000 537 0.77 0.73 - -
1100 593 0.62 0.73 - -
1200 649 0.37 0.72 - -
Material Type ASTM Tubing Specification Condition Min. Recommended
Hardness
Max. Recommended
Hardness
Stainless Steel 304, 316, 316L ASTM A269, A249, A213, A632 Fully Annealed 70 HRb 90 HRb
INCONEL® Alloy 625 625 ASTM B444
Grade 1 (Soft
Annealed) and Grade 2
(Solution Annealed)
90 HRb 102 HRb
INCOLOY® Alloy 825 825 ASTM B423 Annealed 80 HRb 90 HRb
Super Duplex Super Duplex ASTM A269 Fully Annealed 23 HRC (240
HBW)
32 HRC (300
HBW)