These unions shall be designated as Class 3000 socket-welding or threaded and shall carry ratings shown in Table 1 on Mill Spec MSS SP-83

NON-SHOCK WORKING PRESSURE psig

SERVICE * TEMP. DEGREE F	ASTM A105 CARBON STEEL	ASTM A182 F316	ASTM A182 F304L F316L	ASTM A182 F304
100 200 300 400 500 600 650 700 750 800 850 900 950 1000	3000 2735 2655 2565 2425 2220 2180 2155	2915 2510 2265 2080 1935 1830 1800 1750 1710 1680 1645 1595 1565 1470	2430 2050 1835 1670 1535 1460 1420 1390 1360 1330 1300	2915 2430 2140 1905 1770 1680 1650 1630 1610 1595 1575 1555 1515 1300

*Note: These ratings may be lowered by the temperature limitations of the specific o-ring used. Integral seat "cone to ball" unions fully rated.

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