Welded or screwed ot MJ?
75 psig For pipe flanges the class rating is the pressure rating for the flange, in pounds per square inch - gauge (psig).
standard wt of 75 mm pipe with 4 mm thk
Its normal power rating is at room temperature. For a temperature of 75 degrees, halve the rating.
75/3000=.025=2.5%
.75 inch
The 115 is at the moment of contraction [beat] the 75 is the pressure between beats.
20.81
75 points
200 amphere
around 70-75 depends on gearing and if you run a can or pipe
that's what she said
Look at the faceplate. There should be a 75˚C or 60˚C rating bsed on the temperature rating of the terminals. You have to use the lowest rating shown, ie, if you use 90˚C cable with a 75˚C termination, you have to derate the cable ampacity to a 75˚C. An example is look at 310.15(B)(16) in the 2011 NEC. 500kcmil cable is good for 430A in this table at 90˚C, if you had to derate to 75˚C, you loose 50 Amps and derate to 380A.