API 650 Manholes
API 650 Manholes
(OP)
Is there any requirement about the surface finish on the face of the manholes, in the figure 5.7a of the API 650 2013 points that the face gasket shall be machine-finished to provide a minimum of 19 mm of gasket nearing, but doesn't specify the finish of is 125 rms, or 500 rms, i think that it will depend of the gasket material.





RE: API 650 Manholes
RE: API 650 Manholes
RE: API 650 Manholes
No machining whatsoever? You'll probably have some leakage issues - to what extent is a function of the gasket, mill scale quality and quantity, and the quality of the horse manure used as the gasket material.
RE: API 650 Manholes