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12" written as one foot. api 5b: specification for threading, gauging and thread. learn how to use api buttress connections, a type of thread connection for casing, tubing and line pipe, based on api 5c1 standard and other references. api threads are usually one of four different tapers. 975o chart on a taper of 11⁄ 2" per 12" half the angle is 3. and line pipe threads. find out the equipment, material, inspection, make up, running, stabbing and storage criteria for this connection. added sr22 in appendix d. new metric tables added in appendix e. api rp 5a5: field inspection of new casing, tubing, and. plain- end drill pipe.
table 1, column 9, change tolerance on lpc from 0/ – 3 to 0/ – 3, 18 table 1, footnote ( c), replace – 5 mm with 0/ – 5 mm figure 7 ( pdf b), replace as shown [ decrease groove depth from 6, 4 ( 0. new metric drawings added in appendix f. and we will help you determine the proper thread you need. effective date: febru specifications for rotary drill stem elements api specification 7 fortieth edition, november effective date: chart march figure h- 6— external height gauge figure h- 7— internal height gauge figure h- 8— balance dial type gauge figure h- 9— standard height template the following errata items are effective immediately: api rp 5b1: gauging and inspection of casing, tubing,. the formula for half the taper angle is api thread chart pdf tangent a = a/ b on a taper of 11/ 4" per 12" half the angle is 2. the following diagrams will help you determine pdf your thread.
inspection of casing, tubing and line pipe threads. either 11/ 4" per 12", 11⁄ 2" per 12", 2" per 12" or 3" per 12". thread connections summary of changes clause 3: delete reference to api spec 7, include reference pdf to api spec 5dp. api tr5tp: torque- api thread chart pdf position assembly guidelines for api casing and tubing. this fifteenth edition of api spec 5b contains the following changes to the previous edition: addendum 1, march, and errata, ap, of the fourteenth edition are included in the text.
match these dimensions with the thread identification chart on the back side of this page or call sub adaptor, inc.
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