Tapped Holes in Valve Body instead of Flanges
Tapped Holes in Valve Body instead of Flanges
(OP)
A Vendor is supplying Tapped Holes in the body instead of flanges and Tapped holes are threaded to fit Bolts instead of Studs.
Is this acceptable?
If this is acceptable,
if Yes
1) what should be the length of thread / insertion length of bolt
2) Bolt diameter and number of bolts is identical to ASME B16.5 studs?
Thank You
Is this acceptable?
If this is acceptable,
if Yes
1) what should be the length of thread / insertion length of bolt
2) Bolt diameter and number of bolts is identical to ASME B16.5 studs?
Thank You





RE: Tapped Holes in Valve Body instead of Flanges
What kind of Valve?
What size Valve?
What Class Valve?
What Operating Pressure/Temperature?
What Service (Commodity)?
Sometimes its possible to do all the right things and still get bad results
RE: Tapped Holes in Valve Body instead of Flanges
RE: Tapped Holes in Valve Body instead of Flanges
RE: Tapped Holes in Valve Body instead of Flanges
If body end form is equal to required flange form and proven strong enough, and bolt and stud lengths and dimensions (and material) are conforming to allowed data, lengths are more a practical mounting/demounting question.
For some valvetypes, dimensions and pressure classes,it is quite common to have integrated flanges, for others unusual.