Pocket Guide to Flan..

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Figure 4-1. API threaded flange. (Courtesy of National Supply Company.) Figure 4-2. API Type 6BX weldneck flange. (Courtesy of National Supply Com- pany.) 86
API Type 6B and 6BX Flanges 2,000-20,000 psi Maximum Working Pressures Figure 4-1 illustrates a threaded flange. Threaded flanges do not have a bore schedule, but do have a de- scription of the type of thread, such as casing, tubing, or line pipe. The flange illustrated was made by National Supply Company, and will service 15,000 lb. WOG pressure. Figure 4-2 shows a weld neck flange manufactured by the same company, which will service 15,000 Ibs. WOG pressure. This type flange does have a bore schedule. Tables 4-4 through 4-13, indicate the size range, bolt requirements, wrench size for the bolts, and the ring gas- ket number required for API type 6B and 6BX flanges. (Text continued on page 88) Table 4.4 API Type 6B Flanges for 2000 psi Maximum Working Pressure Nominal Old Size and Nominal Size and Wrench Ring Bore of Size of Number of Length of Size for Number Flange (in.) Flange (in.) Bolts Bolts (in.) Bolts (in.) n or RX 113/lS 11/2 4 3/4 x 41/4 11/4 20 2V16 2 8 5/8 x 4V2 11/16 23 29118 21/2 8 3/4 x 5 11/4 26 31/8 3 8 3/4 x 51/4 11/4 31 41/16 4 8 7/8 X 6 17/16 37 51/8 5 8 1 X 63/4 1% 41 71/16 6 12 1 X 7 1% 45 9 8 12 11/8 X 8 113118 49 11 10 16 11/4 X 83/4 2 53 13518 12 20 11/4 X 9 2 57 16314 16 20 lV2 X 10114 2% 65 17314 18 20 15/8 X 11 29/le 69 211/4 20 24 15/8 x 113/4 29/16 73 87
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Pocket Guide to Flanges, Fittings,
Page 3 and 4:
equired to fit the nut. An oval rin
Page 5 and 6:
Acknowledgments, Page x Preface, Pa
Page 7 and 8:
"Im~L~_ZATLO R ~ORGE_A ~ Welding Ne
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E E I- e-- E ~ o ~ N ~5 c- O e,- ~
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common in 150-1b and 300-1b classes
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Slip-on Flange Lap Joint Flange Fig
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A B figure 1-7. Reducing and blind
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Figure 1-10. Cutaway of an orifice
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Accounting Records Good technical d
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16 l! ':l,i, :~! :l, :~t ' ' '~i, :
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als control persons. Familiarize yo
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Do not grease, spray, or clean bolt
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9 . Figure 1-15. Dimensional gauge
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Table 1-3 Alloy Steel Stud Bolts fo
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Table 1-11 Alloy Steel Stud Bolts f
Page 39 and 40: Table 1-13 Alloy Steel Stud Bolts f
Page 41 and 42: Table 1-15 Alloy Steel Stud Bolts f
Page 43 and 44: uJ o0 Z O 03 03 0'3 o coco co ~ o c
Page 45 and 46: 2 ANSI BUTTWELD FITTINGS ANSI buttw
Page 47 and 48: Figure 2-2.90-degree elbows, long a
Page 49 and 50: . . . . . 45 , ,~ + 9 ' 'i'i .~i"~;
Page 51 and 52: Figure 2-5. 180-degree returns, lon
Page 53 and 54: ' Tees Crosses C C @ ALj~ A A B Tee
Page 55 and 56: Lap Joint Stub Ends The stub end is
Page 57 and 58: Figure 2-13. Pipe saddle. (Courtesy
Page 59 and 60: Large diameter fittings can be stor
Page 61 and 62: Figure 2-17. Flat type and ridge ty
Page 63 and 64: 59 S3ZI$ NNtl ~ ~!i~:~_~ ~= ~~ w 0
Page 65 and 66: the Olets are shown in the table, a
Page 67 and 68: threaded, socket weld, and buttweld
Page 69 and 70: Storing Olets All threaded sizes of
Page 71 and 72: Table 3-1 Pipe Chart (Courtesy of T
Page 73 and 74: Table 3.1 continued 3V2 4.000 5 10
Page 75 and 76: Table 3-1 continued 12 12.750 40 60
Page 77 and 78: Table 3-1 continued 26 26.000 28 28
Page 79 and 80: Seamless Pipe This type of pipe is
Page 81 and 82: Table 3-2 Bundling Schedule Nominal
Page 83 and 84: ~+L ". ! ~RACK 8~ ~ ,,..__, .----+,
Page 85 and 86: 5. Always measure pipe within tenth
Page 87 and 88: 4 APi FLANGES The difference betwee
Page 89: New API Bore Sizes for Flanges and
Page 93 and 94: Table 4-7 API Type 6BX Weldneck Fla
Page 95 and 96: Table 4-11 API Type 6BX Integral Fl
Page 97 and 98: x45 ,_1 -< ~§ 1/32 mox "qP'-" ~- O
Page 99 and 100: Bolt lengths have been calculated t
Page 101 and 102: s I S DETAIL I DETAIL 2 Figure 4-6.
Page 103 and 104: API Hubs and Clamps Figures 4-7 and
Page 105 and 106: wrench size required to fit the nut
Page 107 and 108: Table 4.21 BX Gaskets for API Type
Page 109 and 110: Table 5-1 Dimensions for Stainless
Page 111 and 112: T .......... 0 -~ ~ ---~ O.D. r---
Page 113 and 114: The most likely types of stainless
Page 115 and 116: ' / k STRAIGHT TEES STRAIGHT CROSSE
Page 117 and 118: STUB ENDS--MSS SHORT LENGTHS TYPE C
Page 119 and 120: Table 5-2 Dimensions for Stainless
Page 121 and 122: Nominal P~pe Size ...... .... i/| .
Page 123 and 124: ~ OM. I OUTSIDE LAP IPE DIAMETER Dl
Page 125 and 126: Table 5-3 continued SCHEDULE 80S Ex
Page 127 and 128: Table 5-4 Color Code Chart Type of
Page 129 and 130: AISI TYPE 302 303 303Se 304 308 309
Page 131 and 132: 6 MISCELLANEOUS ITEMS There are sma
Page 133 and 134: Coupling Half Couplinll Reducer Cap
Page 135 and 136: Figure 6-6. Sub-tubing nipple, pup-
Page 137 and 138: Gaskets require proper storage meth
Page 139 and 140: I 7 PIPELINE PIGS Pipelines require
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Figure 7-2. Spherical pipeline pigs
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Figure 7-4B. Pipeline pig closures.
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The KnolDp Polly-Spt'~re through th
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The diameter of Polly-Pigs is usual
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STYLE m ! m CID TYPE RCC-SC (Red cr
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Z ~ ONNN~NbNN~NbNN~b~b ~ Z ~ ~ ~ ~
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8 MATERIALS HANDLING TIPS Tallying
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Figure 8-2. Engineer's tape and boa
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1 2 3 4 5 6 1. Purchase order numbe
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Vendor Data Invariably vendor data
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Brz BSE CI Cm CS Cu CW Chk Cpl CSC
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MM M&F Max Mfg Min Misc MRR MSS MTO
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Spl Sht Scrd Smls Spec bid 162 TI T
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27 cubic feet = 1 cubic yard 0.6213
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INDEX Abbreviations, piping, 149-15
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educing, 47-49 service, 48 side out
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pressures required for polly- piggi
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ABOUT THE AUTHOR R. R. Lee is the v
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