Additional specifications
•
Material certificate (mill test report)
• Radiographic testing
• Liquid penetrant inspection
• Flow characteristic inspection
• Degreasing and moisture removal
• Copper-free treatment (fluid contact part)
• SUS304 for bolts and nuts exposed to the air
• Salt-resistant coating
• Cold-area use specifications
• Tropical-area use specifications
Table A-1. Materials of the body, plug, and seat ring
Trim material Operating temperature (°C)
SUS316 -5 to +300 -45 to +300 -45 to +300
SUS316
CoCr-A
-5 to +400 -196 to +400 -196 to +400
SUS440C -5 to +400 -45 to +400 –
SUS316,
soft seat
-5 to +230 -45 to +230 -45 to +230
SUS316,
CoCr-A
surface
-5 to +400 -196 to +400 -196 to +400
SUS316L – -45 to +300 -45 to +300
SUS316L
CoCr-A
– -196 to +400 -196 to +400
Body
mate-
rial
JIS SCPH2 SCS13A SCS14A
ASTM A216WCB A351CF8 A351CF8M
Note: The set of parts for adjusting the flow (plug, seat ring,
etc.) is referred to as the trim.
A-2
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