Thrusterman
Mechanical
Can someone please explain to me API 610.
API 6AF shows graphs where a pipe flange limitation can be read out. One can determine under a specific set of bore pressure and tension load a maximum bending moment or visa versa depending on how one like to read the charts. This is understandable and easy to follow.
If I have to select the flanges directly at a pump I am forced to consider API 610. In API 610 there is only a table of maximum allowable forces and moments for the suction and discharge side of a pump. These numbers are only a fraction compared to API 6AF. I was told that API 610 is already including pump-off forces (tension loads) which could explain the offset in values.
My questions still is: How can someone setup an API, limiting the allowable forces and moments without knowing the pressure regime or geometric form, properties and thickness of material?
Any comment that brings some light to this is highly appreciated!
TM
API 6AF shows graphs where a pipe flange limitation can be read out. One can determine under a specific set of bore pressure and tension load a maximum bending moment or visa versa depending on how one like to read the charts. This is understandable and easy to follow.
If I have to select the flanges directly at a pump I am forced to consider API 610. In API 610 there is only a table of maximum allowable forces and moments for the suction and discharge side of a pump. These numbers are only a fraction compared to API 6AF. I was told that API 610 is already including pump-off forces (tension loads) which could explain the offset in values.
My questions still is: How can someone setup an API, limiting the allowable forces and moments without knowing the pressure regime or geometric form, properties and thickness of material?
Any comment that brings some light to this is highly appreciated!
TM