WebClass 125 fittings do not undergo any testing. They are taken straight from the assembly line and are shipped from the manufacturer. Since class 125 fittings forego testing, they are cheaper; however, they do not pass inspections. When is it okay to use class 125 fittings? WebFLANGE DIMENSIONS TABLE SIZE (DN) 125 (5″) ① AS2129 still in use but now only covers Table D to H. Table C now obsolete, Table J to T now replaced by AS4331.1 which is a replication of ISO7005-1 which in turn is equivalent to ASME 150-2500 class ANSI B16.5. AS4331.1 and ISO 7005-1 also incorporates previous DIN PN rated flanging.

Flange Table ASME BS AS ANSI DN125mm Global Supply Line

http://www.svlele.com/piping/flange_class.htm WebFlanges can withstand different pressures at different temperatures. As temperature increases, the pressure rating of the flange decreases. For example, a Class 150 flange is rated to approximately 270 PSIG at ambient conditions, 180 PSIG at approximately 400°F, 150 PSIG at approximately 600°F, and 75 PSIG at approximately 800°F. green bhavishya position

AWWA Vs. ANSI Flange Standards - Total Piping Solutions

WebAug 28, 2024 · Often “lb,” “class,” and “#” are used interchangeably to designate this. However, 150 lb has no relation to 150 psi. The service temperature of flanges decreases as the temperature increases, but this has no real correlation with pressure class. In fact, different materials rated in specific classes react differently as the temperature changes. WebAug 21, 2011 · Class 125 and Class 250 are "cast iron" flanges and flanged fittings while Class 150 and Class 300 are ductile iron, steel or stainless steel. Hence, ANSI/ASME … WebClass 125LW (175-150 psi*)Same as AWWA Class D Hub. (Click any image above to enlarge it and lock it in place, then scroll to the bottom table for dimensions) Dimensions … flowers nursery bedding