Pocket Guide to Flan..

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Weldneck Flange Types of ANSI Flanges This flange, shown in Figures 1-1 and 1-2, is normally used for high-pressure, cold or hot temperatures. Slip-on and Lap Joint Flanges Figure 1-4 shows these "twin" flanges. Note, however, that a slip-on flange is bored slightly larger than the OD of the matching pipe. The pipe slips into the flange prior to welding both inside and outside to prevent leaks. The lap joint flange has a curved radius at the bore and face to accommodate a lap joint stub end. (Stub ends are described in Chapter 2.) The lap joint flange and stub end assembly are normally used in systems re- quiring frequent dismantling for inspection. Threaded Flange This type of flange, shown in Figure 1-5, is used in systems not involving temperature or stresses of any magni- tude. Socket Weld Flange This flange is similar to slip-on flange, except they have a bore and a counter bore. See Figure 1-6. 7
Slip-on Flange Lap Joint Flange Figure 1-4. Slip-on and lap joint flanges. (Courtesy of Taylor Forge.) The counter bore is slightly larger than the OD of the matching pipe, allowing the pipe to be inserted. A restric- tion is built into the bottom of the bore, which acts as a shoulder for the pipe to rest on, and has the same ID of the matching pipe. The flow is not restricted in any direc- tion. 8
Page 1 and 2: 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
Page 9 and 10: E E I- e-- E ~ o ~ N ~5 c- O e,- ~
Page 11: common in 150-1b and 300-1b classes
Page 15 and 16: A B figure 1-7. Reducing and blind
Page 17 and 18: Figure 1-10. Cutaway of an orifice
Page 19 and 20: Accounting Records Good technical d
Page 21 and 22: 16 l! ':l,i, :~! :l, :~t ' ' '~i, :
Page 23 and 24: als control persons. Familiarize yo
Page 25 and 26: Do not grease, spray, or clean bolt
Page 27 and 28: 9 . Figure 1-15. Dimensional gauge
Page 29 and 30: Table 1-3 Alloy Steel Stud Bolts fo
Page 37 and 38: Table 1-11 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
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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 and 90:
New API Bore Sizes for Flanges and
Page 91 and 92:
API Type 6B and 6BX Flanges 2,000-2
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
Page 141 and 142:
Figure 7-2. Spherical pipeline pigs
Page 143 and 144:
Figure 7-4B. Pipeline pig closures.
Page 145 and 146:
The KnolDp Polly-Spt'~re through th
Page 147 and 148:
The diameter of Polly-Pigs is usual
Page 149 and 150:
STYLE m ! m CID TYPE RCC-SC (Red cr
Page 151 and 152:
Z ~ ONNN~NbNN~NbNN~b~b ~ Z ~ ~ ~ ~
Page 153 and 154:
8 MATERIALS HANDLING TIPS Tallying
Page 155 and 156:
Figure 8-2. Engineer's tape and boa
Page 157 and 158:
1 2 3 4 5 6 1. Purchase order numbe
Page 160 and 161:
Vendor Data Invariably vendor data
Page 162 and 163:
Brz BSE CI Cm CS Cu CW Chk Cpl CSC
Page 164 and 165:
MM M&F Max Mfg Min Misc MRR MSS MTO
Page 166 and 167:
Spl Sht Scrd Smls Spec bid 162 TI T
Page 168 and 169:
27 cubic feet = 1 cubic yard 0.6213
Page 170 and 171:
INDEX Abbreviations, piping, 149-15
Page 172 and 173:
educing, 47-49 service, 48 side out
Page 174 and 175:
pressures required for polly- piggi
Page 176:
ABOUT THE AUTHOR R. R. Lee is the v
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