Machining allowance API 650 Table 5-3b Shell Manhole Covers / Flanges
Machining allowance API 650 Table 5-3b Shell Manhole Covers / Flanges
(OP)
Do the thicknesses given in this table include a machining allowance for the gasketed face?
Are they the required finished thicknesses or the raw material thicknesses?
Where can this be verified?
Are they the required finished thicknesses or the raw material thicknesses?
Where can this be verified?





RE: Machining allowance API 650 Table 5-3b Shell Manhole Covers / Flanges
RE: Machining allowance API 650 Table 5-3b Shell Manhole Covers / Flanges
Note: There is a typographical error in the 12th edition page 5-34. Figure 5.7a is incorrectly shown as "Table 5.7a - Shell Manhole."
RE: Machining allowance API 650 Table 5-3b Shell Manhole Covers / Flanges
I don't understand the logic in only machining the flange face. Do you not also require a good seal on the cover side?
RE: Machining allowance API 650 Table 5-3b Shell Manhole Covers / Flanges
RE: Machining allowance API 650 Table 5-3b Shell Manhole Covers / Flanges