What is Class 1500 flange?
1500 LB Flange Dimensions includes the Bolt circle diameters, which are about 1/8 inch larger as compared to the bolt diameter. Generally, terms such as pressure rating, #, class, Lb or Lbs are interchangeable.
What pressure rating is 1500?
ANSI FLANGE ASTM A105, A350 Gr. LF2/LF6 Class 1
| ANSI/ASME B16.34 | ANSI PRESSURE RATING | |
|---|---|---|
| Temperature in C° | 150# | 1500# |
| -29 / 38 | 19.6 | 255.3 |
| 50 | 19.2 | 250.6 |
| 100 | 17.7 | 233 |
What is the pressure rating for an 8 bolt flange?
ANSI Flange Measurements and Ratings
| Bolt Holes | Bolt Circle | Pressure Rating* |
|---|---|---|
| 8 | 6 5/8″ | 1480 PSI |
| 8 | 6 3/4″ | 6170 PSI |
| 8 | 7″ | 285 PSI |
| 8 | 7 1/4″ | 740 PSI |
Are class 900 and 1500 flanges the same?
If the flange is dual stamped 900/1500, it can be used in either class of piping. If stamped 1500 only, it can still be used in either class of piping. If stamped 900 only, it cannot be used in class 1500 piping.
What is ansi150?
ANSI Class 150 establishes measures for pipe sizes. The American National Standards Institute (ANSI) Class 150 is a system of dimensional standards for weld neck, threaded, slip-on, lap joint, socket weld and blind flanges.
What pressure is a 600 flange rated for?
890 psig
2 at a temperature of 650°F (343°C), a Class 600 flange has a rating of 890 psig (6136 kPa gage) at 650°F (343°C).
How do I choose a flange rating?
Share with: The flange rating or class refers to the maximum pressure that a flange withstands at the increasing temperatures. Flanges with a higher rating are stronger than the flanges with a lower rating, which means 600# flanges can bear more pressure than 150# flanges.