Home Company Product Facility Feedback Contact  
กก
 
• Pipes and Tubing
• Pipes fitting
• Flanges
• Nipple
• Valves
• Fasteners/Hangers
• PE FITTINGS
 
• Manufacturing Equipment
• Inspection & Testing Equipment
 

FLANGE RATINGS MSS SP-44/API 605V


TECHNICAL DATA


PRESSURE-TEMPERATURE RATINGS FOR PIPE LINE FLANGES
METAL TEMPERATURE (DEGREES) FAHRENHEIT PRESSURE (POUNDS PER SQUARE INCH) CLASS
150 300 400 600 900
-20 to 150 285 740 990 1480 2220
300 275 715 955 1430 2145
350 265 690 925 1380 2070
400 255 665 890 1330 2000
450 245 640 860 1285 1925


 

 

 

 

 


 

TABLE 1 -A PRESSURE-TEMPERATURE RATINGS FOR PLANT PIPING AND PRESSURE VESSEL FLANGES*
METAL TEMPERATURE (DEGREES) FAHRENHEIT PRESSURE(b) (POUNDS PER SQUARE INCH GAGE) CLASS
75 150 300 400 600 900
100 140 285 740 990 1480 2220
200 130 260 675 900 1350 2025
300 115 230 655 875 1315 1970
400 100 200 635 845 1270 1900
500 85 170 600 800 1200 1795
600 70 140 550 730 1095 1640
650 60 125 535 715 1075 1610
700 - 110 535 710 1065 1600
750 - 95 505 670 1010 1510
800 - 80 410 550 825 1235
850 - 65 270 355 535 805
900 - 50 170 230 345 515
950 - 35 105 140 205 310
1000c - 20 50 70 105 155

 

 

 

 

 

 

 

 

 

 

 

     Based on the pressure-temperature ratings in ANSI B16.5 (1977), for use with flanges designed in accordance with the ASME Code or ANSI B31.3.
     Pressure-temperature ratings are based on material specifications ASTM A105 and A216 Grade WCB. Limitations on the use of these materials shall be
in accordance with the applicable code.
     Maximum service temperature for Classes 150 through 900.

TABLE 1 -B PRESSURE-TEMPERATURE RATINGS FOR PIPE LINE FLANGES*
METAL TEMPERATURE (DEGREES) FAHRENHEIT PRESSURE (POUNDS PER SQUARE INCH GAGE) CLASS
300 400 600 900
100 740 990 1480 2220
250 740 990 1480 2220
300 715 955 1430 2145
350 690 925 1380 2070
400 665 890 1330 2000
450 640 860 1285 1925

* Pressure-temperature ratings meet the requirements set forth in ANSI B31.4 and B31.8.