500f 100f inlet outlet 170 600 1200 1795 2995 4990

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Unformatted text preview: 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 20 API STANDARD 526 Table 18—Pilot-operated Pressure Relief Valves “F” Orifice (Effective Orifice Area = 0.307 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 4990 170 600 1200 1795 2995 4990 285 285 285 740 740 740 285 285 285 740 740 740 41/8 43/8 43/8 415/16 415/16 415/16 47/8 47/8 47/8 57/8 57/8 57/8 41/2 41/2 41/2 43/4 43/4 43/4 43/4 43/4 43/4 51/2 51/2 51/2 170 480 955 1435 2390 3980 170 480 955 1435 2390 3980 275 275 275 720 720 720 275 275 275 720 720 720 41/8 43/8 43/8 415/16 415/16 415/16 47/8 47/8 47/8 57/8 57/8 57/8 41/2 41/2 41/2 43/4 43/4 43/4 43/4 43/4 43/4 51/2 51/2 51/2 140 360 720 1080 1800 3000 140 360 720 1080 1800 3000 275 275 275 720 720 720 275 275 275 720 720 720 41/8 43/8 43/8 415/16 415/16 415/16 47/8 47/8 47/8 57/8 57/8 57/8 41/2 41/2 41/2 43/4 43/4 43/4 43/4 43/4 43/4 51/2 51/2 51/2 180 465 930 1395 2330 3880 180 465 930 1395 2330 3880 275 275 275 720 720 720 275 275 275 720 720 720 41/8 43/8 43/8 415/16 415/16 415/16 47/8 47/8 47/8 57/8 57/8 57/8 41/2 41/2 41/2 43/4 43/4 43/4 43/4 43/4 43/4 51/2 51/2 51/2 Temperature Range, Ð 20¡F to 500¡F Carbon Steel 1F2 1F2 1F2 1F2 1F2 1F2 11/2 F2 11/2 F2 11/2 F2 11/2 F2 11/2 F2 11/2 F2 150 300 600 900 1500 2500 150 300 600 900 1500 2500 150 150 150 300 300 300 150 150 150 300 300 300 285 740 1480 2220 3705 6170 285 740 1480 2220 3705 6170 Temperature Range, Ð 450¡F to 500¡F Austenitic Stainless Steel --``,,,`,``,,`````,,,,,`,,,``-`-`,,`,,`,`,,`--- Nickel/Copper Alloy 1F2 1F2 1F2 1F2 1F2 1F2 11/2 F2 11/2 F2 11/2 F2 11/2 F2 11/2 F2 11/2 F2 150 300 600 900 1500 2500 150 300 600 900 1500 2500 150 150 150 300 300 300 150 150 150...
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