4 2h3 2h3 2h3 2h3 150 300 300 600 900 1500 150 150

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: H3 (4) 2H3 2H3 2H3 2H3 150 300 300 600 900 1500 150 150 150 150 150 300 285 285 740 1480 2220 2750 185 285 615 1235 1845 2750 80 285 410 825 1235 2060 Temperature Range, 801¡F Ð 1000¡F Inclusive Chrome Molybdenum Steel 2H3 2H3 2H3 2H3 300 600 900 1500 150 150 150 300 510 1015 1525 2540 Temperature Range, Ð 450¡F Ð 1000¡F Inclusive Austenitic Stainless Steel 11/2H3 11/2H3 (4) 2H3 2H3 2H3 2H3 150 300 300 600 900 1500 150 150 150 150 150 300 275 275 720 1440 1485 1600 275 275 720 1440 2160 2750 275 275 720 1440 2160 2750 180 180 495 975 1485 2480 80 80 420 845 1265 2110 Temperature Range, Ð 20¡F Ð 600¡F Inclusive Nickel/Copper Alloy (5) 11/2H3 11/2H3 (4) 2H3 2H3 150 300 300 600 150 150 150 150 140 140 360 720 140 140 360 720 140 140 360 720 Temperature Range, Ð 20¡F Ð 300¡F Inclusive Alloy 20 (6) 11/2H3 11/2H3 (4) 11/2H3 2H3 2H3 2H3 150 300 300 600 900 1500 150 150 150 150 150 300 230 230 600 1200 1800 3000 180 180 465 930 1395 2330 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 451¡F to 800¡F column are limited to 600¡F. 6. Material limited to 300¡F. Pressure ratings indicated in the 101¡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 FLANGED STEEL PRESSURE RELIEF VALVES 9 Table 7—Spring-loaded Pressure Relief Valves “J” Orifice (Effective Orifice Area = 1.287 square in.) Materials (2) Valve Size ANSI Flange Class Maximum Pressure (psig) Conventional and Balanced Bellows Valves Spring Materials (3) Outlet Pressure Low Carbon Carbon...
View Full Document

This document was uploaded on 11/25/2013.

Ask a homework question - tutors are online