3 material limited to 300f pressure ratings indicated

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Unformatted text preview: 0 900 1500 2500 150 300 600 900 1500 2500 150 150 150 300 300 300 150 150 150 300 300 300 Alloy 20 (3) 1H2 1H2 1H2 1H2 1H2 1H2 11/2H2 11/2H2 11/2H2 11/2H2 11/2H2 11/2H2 150 300 600 900 1500 2500 150 300 600 900 1500 2500 150 150 150 300 300 300 150 150 150 300 300 300 140 360 720 1080 1800 3000 140 360 720 1080 1800 3000 Temperature Range, Ð 20¡F to 300¡F 230 600 1200 1800 3000 5000 230 600 1200 1800 3000 5000 Notes: 1. Outlet pressure limit for temperatures above 100¡F shall not exceed the rating in ANSI/ASME B 16.34. 2. Materials given are minimum requirements for the pressure and temperature ratings. Other suitable materials may be used, as required, for the service involved. 3. Material limited to 300¡F. Pressure ratings indicated in the 500¡F column are limited to 300¡F. Copyright American Petroleum Institute Reproduced by IHS under license with API No reproduction or networking permitted without license from IHS Licensee=TECNA/5935100001 Not for Resale, 05/05/2005 09:50:16 MDT --``,,,`,``,,`````,,,,,`,,,``-`-`,,`,,`,`,,`--- Temperature Range, Ð 20¡F to 500¡F FLANGED STEEL PRESSURE RELIEF VALVES 23 Table 21—Pilot-operated Pressure Relief Valves “J” Orifice (Effective Orifice Area = 1.287 square in.) Material (2) Valve Size ANSI Flange Class Maximum Pressure (psig) Set Pressure Limit Body Inlet by OriÞce by Outlet Inlet Outlet Ð 450¡F to Ð 21¡F Ð 20¡F to 100¡F Outlet Pressure Limit (1) Center to Face Dimensions (in.) 500¡F 100¡F Inlet Outlet 170 600 1200 1795 2995 3650 170 600 1200 1795 2995 285 285 285 740 740 740 285 285 285 740 740 53/8 53/8 53/8 69/16 69/16 7 61/8 61/8 63/8 71/2 71/2 47/8 47/8 47/8 63/4 63/4 63/4 63/8 63/8 63/8 71/8 71/8 170 480 955 1435 2390 3550 170 480 955 1435 2390 275 275 275 720 720 720 275 275 275 720 720 53/8 53/8 53/8 69/16 69/16 7 61/8 61/8 63/8 71/2 71/2 47/8 47/8 47/8 63/4 63/4 63/4 63/8 63/8 63/8 71/8 71/8 140 360 720 1080 1800 3000 140 360 720 1080 1800 275 275 275 720 720 720 275 275 275 720 720 53/8 53/8 53/8 69/16 69/16 7 61/8 61/8 63/8 71/2 71/2 47/8 47/8 47/8 63/4 63/4 63/4 63/8 63/8 63/8 71/8 71/8 180 465 930 1395 2330 3880 180 465 930 1395 2330 275 275 275 720 720 720 275 275 275 720 720 53/8 53/8 53/8 69/16 69/16 7 61/8 61/8 63/8 71/2 71/2 47/8 47/8 47/8 63/4 63/4 63/4 63/8 63/8 63/8 71/8 71/8 Temperature Range, Ð 20¡F to 500¡F Carbon Steel --``,,,`,``,,`````,,,,,`,,,``-`-`,,`,,`,`,,`--- 2J3 2J3 2J3 2J3 2J3 2J3 3J4 3J4 3J4 3J4 3J4 150 300 600 900 1500 2500...
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