ASME B16.36-2006 pdf download

ASME B16.36-2006 pdf download.Orifice Flanges.
8.2 Location
8.2.1 Measurement. The24mm(0.94in.)dimension for raised fact and 19 mm (0.75 in.) for ring joint shall be measured at the bore.
8.2.2 IdentifIcation. For ring ,oint flanges requiring dltL’TdtiOfl Ut pussun tap location due to interfince with the ring groove other than methods provided in this Standard, such alteration shall be identified per agreement between purchaser and manufacturet
8.3 PIpe Connection
Unless otherwise specified, pressure tap holes may be either tapped NI’T in .sxonlance with ASME B1.20.1 or NPS socket connection in accordance with
ASME 1116.11.
9 JACK SCREW PROVISION
9.1 Location
Each flange shall have a machine bolt mounted in a hole drilled on the flange bolt circle center line at 90 deg from the pressure taps, for use as a jack screw. Machine bolt shall be regular with one heavy hex nut, See Fig. 3.
9.2 Slot fo Nut
A slot shall h provided in the flange 2 mm (0.06 in.) wider than the width acrois flats of the nut. The depth of th slot shall admit the nut so that there is no interference with the joining of the flanges when bolted together without orifice plate
9.3 Tapped Hole
As an alternative to para. 9.2. a tapped hole may be provided and the hex nut omitted when agreed on between the purchaser and the manufacturer.
10 FLANGE DIMENSIONS
Dimensions are listed in Tables 1, 2, 3, 4, and 5, for metric, and Tables I.), l•2. 1.3, [.4, and l•5, and Mandatory Appendix II For US. Customary.
11 FLANGE THREADS
Threaded flanges shall have .in American National Standard taper pipe thread conforming to
ASME 111.20.1.
(a) The thread shall be concentric with the axis of the flange. Variations in alignment shall not exceed 5 mm/M (0.06 in./ft).
(h) The flanges are made with counterbores at the back of the flange and the threads shall be chamfered to the diameter of the counterbore at an angle of approxiniately 45 deg with the axis of the thread to afford easy entrance in making a joint. The counierbore and chamfer shall be concentric with the thread.
() In order to permit the pipe to be inserted to the face of the flange. the threads should have full root diameters through to the face of the flange. or shall have a counterbore at the face of the flange.
(d) The gaging notch of the working gage shall come flush with the bottom of the chamfer In all threaded flanges and shall be considered as being the intersection of the chamfer cone and the pitch cone of the thread, This depth of chamfer is approximately equal to one-halt the pitch of the thread.
(e) The maximum allowable thread variation is one turn large or small from the gaging notch.