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157
Line Sizing Charts
11” W.C. Line Sizing Chart - Pipe & Copper-
Data Calculated per NFPA #58 & #54
2 PSIG Line Sizing Chart - Pipe & Copper-
3/81/25/83/41/23/41 1-1/41-1/222-1/23
176363738
12901140238444919215
13809265974239174938
121249507887784
1638308663339491
182802913551504
97200407712629
1316247950877623
146832340241369
83171349609539
1126212043526521
125602001935389
74152309540477998
188038585781
111351774731373
67138280489432904
170334955235
100841607529784
61127258450398832
1567321548169277
1478827400
57118240419370774
1458299144808630
1375625488
54111225393347726
1368280642038096
1290423872
51104212371328686
1292265239737652
1219722563
Size of Pipeor CopperTubing, Inches
CopperTubing(O.D.)
PipeSize
10 20 30 40 50 60 70 80 90 100
Length of Pipe or Tubing, Feet
3/81/25/83/41/23/41 1-1/41-1/222-1/23
4593
188329291608
1145235035238448
1081419177
4184
171298263551
10382129319176529795
17316
3777
157274242507955
1963293956599021
15946
3572
146255225471888
1824273152598384
14820
3367
137239212442833
1710256049317860
13897
3164
129226200418787
1616242046617429
13135
2960
123215190397748
1539230644387074
12508
2858
117205181379713
1464219442236731
11901
2653
108188167348656
1345201738836187
10940
2449
100175155324610
1252187836155761
10186
Size of Pipeor CopperTubing, Inches
CopperTubing(O.D.)
PipeSize
125 150 175 200 225 250 275 300 350 400
Length of Pipe or Tubing, Feet
Maximum capacity of pipe or tubing in thousands of BTU/hr of LP-Gas2 PSIG inlet with a .2 PSIG Pressure Drop
3/81/25/83/47/81/23/41 1-1/41-1/222-1/23
3/81/25/83/47/81/23/41 1-1/41-1/222-1/23
49110206348536291608
1146235335256789
1068719130
---------------74
155292600899
173127994878
3476
141239368200418788
1617242346667379
13148
---------------67
141265544815
156925454420
2761
114192296161336632
1299194637475972
10558
---------------62
129244500749
144323244102
235297
164253137287541
11111665320750899036
---------------58
120227465697
134321713783
204686
146224122255480985
1476284244958009
---------------54
113213437654
126020253568
194278
132203110231435892
1337257540717256
---------------51
107201412618
119018793353
---3871
120185102212400821
1230236938176734
---------------48
101191392587
113017913196
---3667
113174
94198372764
1144220434786211
---------------4697
182374560
107817023038
---3362
105161
87185349717
1074206833085858
---------------4389
167344515992
15662795
---3259
100154
84175330677
1014195431385504
---------------4083
156320479923
14572600
Size of Pipeor CopperTubing, Inches
Size of Pipeor CopperTubing, Inches
CopperTubing(O.D.)
CopperTubing(O.D.)
PipeSize
PipeSize
10
125
20
150
30
175
40
200
50
225
60
250
70
275
80
300
90
350
100
400
Length of Pipe or Tubing, Feet
Length of Pipe or Tubing, Feet
Maximum capacity of pipe or tubing in thousands of BTU/hr of LP-Gas11 inches W.C. inlet with a 1/2 inch W.C. Pressure Drop
158
Line Sizing Charts
10 PSIG Line Sizing Chart -Polyethylene Tubing-
10 PSIG Line Sizing Chart -Pipe & Copper-
Data Calculated per NFPA #58 & #54
3/81/25/83/41/23/41 1-1/41-1/222-1/23
55813872360399333396982
13153270044046177924
124198219563
383870
16222475229647999040
18560278095355685360
150904
309700
13032205184338547259
14904223314300868548
121183
265599
11151887157732986213
12756191133680958668
103716
235531988
1672139829235507
1130616939326235199691921
213481896
1515126726494989
1024415348295594711283287
196443824
13941165243745909424
14120271944334276622
182412767
12971084226742708767
13136252994032371285
171386719
12171017212740078226
12325237373783366883
161365679
1149961
200937857770
11642224223573763178
Size of Pipeor CopperTubing, Inches
CopperTubing(O.D.)
PipeSize
10 20 30 40 50 60 70 80 90 100
Length of Pipe or Tubing, Feet
3/81/25/83/41/23/41 1-1/41-1/222-1/23
142323601
1018852
178033546887
10318198713167155990
130293546923772
1613303962409349
180052869750732
118269502843710
1484279657418601
165642640046671
111251467790660
1381260153408002
154102456143420
104235438740619
1296244150117508
144592304540740
90222414700585
1224230547337092
136582176938484
89211393664556
1162219044956735
129712067436549
89201375634530
1109208942896426
123751972434869
82185345584488
1020192239455911
113851814632079
76172321543454949
178836705499
105911688029841
Size of Pipeor CopperTubing, Inches
CopperTubing(O.D.)
PipeSize
125 150 175 200 225 250 275 300 350 400
Length of Pipe or Tubing, Feet
Maximum capacity of pipe or tubing in thousands of BTU/hr of LP-Gas10 PSIG inlet with a 1 PSIG Pressure Drop
Maximum capacity of plastic tubing in thousands of BTU/hr of LP-Gas10 PSIG inlet with a 1 PSIG Pressure Drop
159
Line Sizing Charts
11” W.C. Line Sizing Chart - CSST -
2 PSIG Line Sizing Chart - CSST -
Data Calculated per NFPA #58 & #54
10A15A20A25A
10A15A20A25A
3/81/23/41
3/81/23/41
108225528918
4172
164266
81160371682
3865
150241
68130302508
3457
129207
60113261436
3151
115183
55101233386
264194
147
5192
213350
233681
126
4580
184300
192966
102
Size of CorrugatedStainless SteelTubing, Inches
Size of CorrugatedStainless SteelTubing, Inches EHD**
EHD** 5
50
10
60
15
80
20
100
25
150
30
200
40
300
Length of Tubing, Feet
Length of Tubing, Feet
Maximum capacity of Corrugated Stainless Steel Tubing in thousands of BTU/hr of LP-Gas11 inches W.C. inlet with a 1/2 inch W.C. Pressure Drop
* Table includes losses for four 90 degree bends and 2 end fittings. To compute flowcapacity for tubing runs with a larger number of bends and/or fittings, add the appro-priate number of feet to the actual run length using the following formula:
** EHD - Equivalent Hydraulic Diameter - A measure of the relative hydraulic efficiencybetween different tubing sizes. The greater the value of EHD, the greater the gas capacityof the tubing.
L = 1.3(n)L = Number of feet to be added to actual run length.n = Number of bends and/or fittings over six.
10A15A20A25A
10A15A20A25A
3/81/23/41
3/81/23/41
570166040517934
205482
11482089
429117628505468
182418992
1790
363961
23204398
166374885
1588
332833
20043768
141306721
1277
294745
17903343
125265623
1094
273681
16323031
106216507880
242590
14102597
221528
12592304
86168391669
Size of CorrugatedStainless SteelTubing, Inches
Size of CorrugatedStainless SteelTubing, Inches EHD**
EHD** 5
60
10
80
15
100
20
150
25
200
30
300
40 50
500
Length of Tubing, Feet
Length of Tubing, Feet
Maximum capacity of Corrugated Stainless Steel Tubing in thousands of BTU/hr of LP-Gas2 PSIG inlet with a 1 PSIG Pressure Drop
160
Based on 1 PSIG pressure drop and 0OFMaximum capacity of Type K Copper or SCH 40 iron pipe in GPH of LP-Gas
Values based on Darcy's equation with a 20% reduction in flow to account for flashing of liquid during flowthrough tank valves, dip pipes etc. in the piping.Calculation assumes turbulent flow (i.e. Reynold's number > 4000) and the weight density of propane taken at 0OF.
Use this chart for flows direcly from storage (”Normal State”).For elevated pressure systems, ask for our “Elevated Pressure Liquid Flow Chart”.
1/43/81/25/83/4
1
1/23/4
11-1/41-1/2
2
CopperTubing(I.D.)
Pipe Size 330696
1356274840927884
79164330569801
1587
55116233402566
1193
234492954
194428925574
4595
190328462974
222402780
159023644548
3982
165284400843
162348678
137420463942
3573
147254358754
150312606
123018303534
3267
134232327689
132282552
112216683222
2962
124215302637
126264516
104415482982
2758
116201283596
114246480
972314522790
2654
110189267562
108228450918
13622628
2452
104180253533
105222426870
12962490
Size of Type K Copperor SCH 40 Pipe ID 10 20 30 40 50 60 70 80 90 100
Flow capacities thru pipes, valves, regulators etc., given in CFH for a particular gas, can be readily converted to CFH of the desired gas using the following multipliers.
Vapor Meter Index ConversionsMeter reads in gallons multiply reading by 36.39 to get cubic feetMeter reads in cubic feet divide reading by 36.39 to get gallons
Propane Properties
Physical ConstantsCommercial
Propane
FormulaFreezing Point, OF at 30” MercuryBoiling Point, OF, 30” MercurySpecific Gravity of Vapor, 60OF, 30” Mercury
C3H8-306-441.52
Specific Gravity of Liquid, 60O / 60OFWeight per Gallon of Liquid at 60OF, lbs.BTU per Gallon (Vaporized)BTU per Pound (Vaporized)BTU per Cubic Foot (Vaporized)
.514.24
91690215912520
Cu. Ft. of Vapor /Gal of Liquid at 60OF, 30” Hg.Cu. Ft. of Vapor /Pound of Liquid at 60OF, 30” Hg.
36.398.55
Equivalents of Pressure
Multiply By To Obtain
lb/in21.73227.7276.895
oz/in2
in of water(kPa) kilopascals
in of water0.03610.5770.249
lb/in2
oz/in2
(kPa) kilopascals
oz/in2 1.732 in of water
kg/cm2 14.22 psi
Converting Volumes Of Gas
MultiplyCFH Of : By
To ObtainCFH Of :
Natural Gas
0.7750.6280.685
AirPropane
Mixed Gas
Propane1.2371.5981.09
AirNatural GasMixed Gas Vaporization Capacity of Popular ASME Propane Storage Vessels
For Other Air Temperature, Use the Following Mutipliers
Air Temp Multiplier Air Temp Multiplier
-15 OF 0.25 +5 OF 1.25
-10 OF 0.50 +10 OF 1.50
-5 OF 0.75 +15 OF 1.75
0 OF 1.00 +20 OF 2.00
162
Base Pressure & Temp Conversions
Base Temperature Conversion
ObservedTemp
OF
MultiplierTo
60 OF Base
ObservedTemp
OF
MultiplierTo
60 OF Base
ObservrdTemp
OF
MultiplierTo
60 OF Base
012345
1.13091.12851.12601.12361.12111.1187
363738394041
1.04861.04641.04431.04221.04011.0381
727374757677
.9974
.9755
.9737
.9719
.9701
.9682
678910
1.11631.11391.11151.10911.1068
4243444546
1.03601.03391.03191.02981.0278
7879808182
.9664
.9646
.9628
.9611
.9593
1112131415
1.10441.10211.09971.09741.0951
4748495051
1.02571.02371.02171.01971.0177
8384858687
.9575
.9557
.9540
.9522
.9505
1617181920
1.08281.09051.08821.08591.0836
5253545556
1.01571.01371.01171.00971.0078
8889909192
.9488
.9470
.9453
.9436
.9418
2122232425
1.08141.07911.07691.07461.0724
5758596061
1.00581.00391.00191.00000.9981
9394959697
.9401
.9384
.9367
.9351
.9334
2627282930
1.07021.06801.06581.06361.0614
6263646566
.9962
.9942
.9923
.9904
.9886
9899100101102
.9317
.9300
.9284
.9267
.9250
3132333435
1.05931.05711.05501.05281.0506
6768697071
.9867
.9848
.9829
.9811
.9792
103104105106107
.9234
.9217
.9201
.9185
.9169
These factors are used to convert volumes of gases at various observed pressures and temperatures to the standard 4 oz. base pressure and/or the standard 60OF base temperature.
Pressure Example: 1000 Cubic Feet read at 10 PSIG equals 1652 (1000 X 1.652) Cubic Feet at a standard 4 oz. base pressure.
Temp Example: 1000 Cubic Feet read at 10OF equals 1106.8 (1000 X 1.106.8) Cubic Feet at a standard 60OF base temperature.
Base Pressure Conversion
Observed GaugePressure (PSIG)
Multiplier To ConvertTo 4 oz. Base
01/41/25/81
0.9831.0001.0171.0251.050
23456
1.1171.1841.2511.3181.385
7891012
1.4521.5181.5841.6521.786
1416182022
1.9202.0542.1872.3212.455
2426283035
2.5892.7222.8562.9903.324
4045506070
3.6593.9934.3284.9975.666
8090100110120
6.3347.0037.6728.3419.010
130140150160170
9.67910.3511.0211.6912.35
180190200
13.0213.6914.36
163
Drill Size Data Drill Size Data Drill Size Data
InchDia.
MtdSize
DecInch
InchDia.
MtdSize
DecInch
InchDia.
MtdSize
DecInch
1/64
8079..7877
.0135
.0145
.0156.016.018
7/6436..353433
.1065
.1093.110.111.113
17/64
FG..HI
.257
.261.2656.266.272
7675747372
.020
.021.0225.024.025
1/8
3231..3029
.116
.120
.125.1285.136
9/32
JK..LM
.277
.281.2812.290.295
1/32
71706968..
.026
.028.0292.030
.0312
9/6428..272625
.1405
.1406.144.147
.1495
19/64
5/16
..N..OP
.2968.302
.3125.316.323
6766656463
.032
.033
.035
.036
.037
5/32
2423..2221
.152
.154.1562.157.159
21/64
11/32
..QR..S
.3281.332.339
.3437.348
6261605958
.038
.039
.040
.041
.04211/64
201918..17
.161
.166.1695.1719.175
23/64
3/8
T..U..V
.358.3593.368.375.377
3/64
5756..5554
.043.0465.0469.0520.0550 3/16
16151413..
.177
.180
.182
.185.1875
25/64
11/32
W..XY..
.386.3906.397.404
.4062
1/1653..525150
.0595
.0625
.0635
.0670.070
12111098
.189
.191.1935.196.199
7/1629/6415/3231/64
Z........
.413.4375.4531.4687.4843
5/64
4948..4746
.073
.076.0781.0785.081
13/647..654
.201.2031.204
.2055.209
3/32
45444342..
.082
.086
.089.0935.0937
7/323..21A
.213.2187.221.228.234
4140393837
.096
.098.0995.1015.104
15/64
1/4
..BCDE
.2343.238.242.246.250
Orifice And Drill Data
Capacity in BTU/HR of both Propane and Natural Gas is tabulated for the common MTD drill sizes used in burner work. Conversion sizing is readily accomplished by selecting the correct BTU requirement for any particular drill size.The Drill Size Data chart at the right is offered for reference to other sizes.
Orifice Capacity Chart - BTU/HR
DrillSize
Propane11” Water
Natural3.5” Water
DrillSize
Propane11” Water
Natural3.5” Water
.006
.007
.008
.009
.010
.011
249338445570703845
88119157201248298
454443424140
470005160055300611006440067000
165001815019420214702260023550
.0128079787776
100512701470179022602790
355447514637792979
393837363534
692007200075500793008450086200
242502528026500278002970030250
757473727170
308035404020437047305490
107814221418153116561921
333231302928
9400098300100600115300129500137500
314003308035400400604540048400
696867666564
596067207150760085609050
209023552550266830003180
272625242322
145000151000156000161500166000172000
508005300054800567005825060600
636261605958
95701010010600111701175012300
335535403730392241204320
212019181716
176500181100193000200500290999219000
622006370067700706007350076900
575655545352
129301510018850212002470028200
453052806620733086709890
151413121110
236500242000239500250000255000261500
796008140083200857008950091700
51504948474645
31400342003720040400430004580047000
11000120001375014160151001605016500
Values Based on:
Propane 2500 BTU per cubic foot.
Natural 1000 BTU per cubic foot.
164
Thread Identification
Thread Identification GuideThe table lists the thread sizing for the various fittings used in the propane industry. Using the table as a guide, service personnel can identify the common size and style of fittings encountered in the field.
Note:Steel pipe is sized by the nominal I.D. of the pipe. The O.D. is listed for reference.Copper tubing is sized by the nominal O.D. of the tubing.
Size
Pipe Size45O FlareThread
Inverted FlareThread
CompressionThread
Break AwayThread
Thread O.D.
1/8” 1/8”-27 .405” 5/16”
-245/16”-28
5/16”-24
5/16”-24
3/16” --- --- 3/8”-24
3/8”-24
3/8”-24
3/8”-24
1/4” 1/4”-18 .540” 7/16”
-207/16”-24
7/16”-24
7/16”-24
5/16” --- --- 1/2-20
1/2-20
1/2-24
1/2-20
3/8” 3/8”-18 .675” 5/8”
-185/8”-18
9/16”-24
9/16”-20
7/16” --- --- 11/16”-16
11/16”-18
5/8”-24
5/8”-24
1/2” 1/2”-24 .840” 3/4”
-163/4”-18
11/16”-20
11/16”-16
5/8” --- --- 7/8”-14
7/8”-18
13/16”-18
7/8”-18
3/4” 3/4”-14 1.05” 1-1/16”
-141-1/16”
-161”-18
1”-18
7/8” --- --- 1-1/4”-12
1-3/16”-16
1-1/8”-18
1-1/8”18
1” 1”-11-1/2 1.315” 1-3/8”
-121-5/16
-161-1/4”
-181-1/4”
-18
1-1/4” 1-1/4”-11-1/2 1.66” --- --- --- ---
1-1/2” 1-1/2”-11-1/2 1.90” --- --- --- ---
2” 2”-11-1/2 2.375” --- --- --- ---
2-1/2” 2-1/2”-8 2.875” --- --- --- ---
3” 3”-8 3.500” --- --- --- ---
30O
45O45O
165
Rego 2-1/2” Multivalves1470 Series Valves
1475 Shown
Filler Kit
0
300
Vapor Return Kit Shutoff Kit1475-80 2418-51 3100 Series