Pressure ratings indicated in the 45f to 800f column

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Unformatted text preview: 0 150 150 65 65 120 65 65 120 65 65 120 Temperature Range, Ð 20¡F to 300¡F Inclusive Alloy 20 (6) 8T10 8T10 (4) 8T10 150 300 300 150 150 150 65 65 120 65 65 120 Notes: 1. Outlet pressure limit for temperatures above 100¡F shall not exceed the rating in ANSI/ASME B16.34. 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. Chrome alloy springs may be used above 450¡F. 4. Set pressure limited for low pressure applications where a Class 300 ßange is preferred over a Class 150 ßange. 5. Material limited to 600¡F. Pressure ratings indicated in the 45¡F to 800¡F column are limited to 600¡F. 6. Material limited to 300¡F. Pressure ratings indicated in the 10¡F to 450¡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 600¡F Inclusive 18 API STANDARD 526 Table 16—Pilot-operated Pressure Relief Valves “D” Orifice (Effective Orifice Area = 0.110 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 T...
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This document was uploaded on 11/25/2013.

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