A-A-50632A(SH)
TABLE II. Materials for strainers.
Part |
Material |
Applicable Documents |
Remarks |
Bodies, covers |
CRES |
ASTM A 276 |
S31600 |
CRES Plate |
ASTM A 167 |
S30400 |
|
Self-cleaning mechanism |
CRES Plate |
ASTM A 167 |
S30400 |
CRES |
ASTM A 276 |
||
Threaded fasteners |
Stainless Steel |
ASTM F 593 |
S30400, S31600 |
ASTM F 594 |
|||
"0" rings |
Fluorocarbon |
MIL-R-83248/1 |
|
Strainer element |
CRES Plate |
ASTM A 167 |
S30400 |
CRES Wire |
ASTM E 437 |
S30400, S31600 |
3.3.6 Envelope dimensions. Unless otherwise specified (see 7.1), dimensions shall be as specified on figure 1.
3.4 Functional performance. Unless otherwise specified (see 7.1), design flow capacity, pressure shall be as follows.
3.4.1 Capacity. The design flow rate for a single element housing shall be 150 gpm for fluids with viscosities less than or equal to 500 Seconds Saybolt Universal (SSU). Additional capacity can be achieved by specifying multiple elements within a single housing (see 7.1).
3.4.1.1 Capacity test. Unless otherwise specified (see 7.1), the test fluid viscosity shall be within ten percent of 500 Seconds Saybolt Universal (SSU). Within this range, test results may be analytically corrected for the deviation of the viscosity from the specified value. The temperature of the fluid must be less than the maximum temperature specified in table I. The strainer assembly shall be installed in a test loop in accordance with ISA-S75.02.
3.4.2 Pressure. Unless otherwise specified (see 7.1), the strainer shall be suitable for operation in the range of 60 psig to design pressure (see 2.1).
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