00 square in materials 2 valve size ansi flange class

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Unformatted text preview: ions 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 17 Table 15—Spring-loaded Pressure Relief Valves “T” Orifice (Effective Orifice Area = 26.00 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 Carbon High High Limit (1) Temper- Steel or Steel or Steel or Temper- Temperature Chrome Chrome Chrome ature ature ConvenAlloy Alloy Alloy Alloy Alloy Alloy tional Bellows Steel Steel Steel Steel Steel Steel Valves Valves Body/Bonnet Inlet by OriÞce by Outlet Inlet Outlet Center to Face Dimensions (in.) Ð 450¡F to Ð 76¡F Ð 75¡F to Ð 21¡F Ð 20¡F to 100¡F 101¡F to 450¡F 451¡F to 800¡F 801¡F to 1000¡F 100¡F 100¡F Inlet Outlet 30 30 60 100 30 30 60 100 107/8 107/8 107/8 107/8 11 11 11 11 100 225 60 100 60 100 107/8 107/8 11 11 20 20 120 30 30 60 30 30 60 107/8 107/8 107/8 11 11 11 30 30 60 30 30 60 107/8 107/8 107/8 11 11 11 30 30 60 30 30 60 107/8 107/8 107/8 11 11 11 Temperature Range, Ð 20¡F to 800¡F Inclusive Carbon Steel 8T10 8T10 (4) 8T10 8T10 150 300 300 300 150 150 150 150 65 65 120 300 65 65 120 300 65 65 120 300 Temperature Range, 801¡F to 1000¡F Inclusive Chrome Molybdenum Steel 8T10 8T10 300 300 150 150 120 300 Temperature Range, Ð 450¡F to 1000¡F Inclusive Austenitic Stainless Steel 8T10 8T10 (4) 8T10 150 300 300 150 150 150 50 50 65 65 65 120 65 65 120 65 65 120 65 65 120 Nickel/Copper Alloy (5) 8T10 8T10 (4) 8T10 150 300 300 15...
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This document was uploaded on 11/25/2013.

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