Hot Tapping Calculations

Branch Reinforcement Calculation (Only highlighted data to be filled) EC32EA SPEC Design conditions As per LDT Design Temperature

Design Pressure

corrosion allowance (C)

RTF/06 Hot Tap Cal.ref no. Dated: 18/05/2001

427.00 degrees 800.60 Fahrenheit 28.00 Kg/sqcm2 398.16 PSI 0.06 inches

Header information Nominal Size Outside diameter of header pipe Material spec Thickness Allowable stress for header material from 31.3 Coeff from table 304.1 ( Pg. 20 - ANSI 31.3) Quality factor from 31.3 (E)

inches 914.4 A106 GR.B 0.375 inches 18900.00 PSI (Pg. 154 ANSI 31.3) 0.40 Const. 1.00 Const.(Pg. 209 ANSI 31.3)

Branch information Nominal Size Outside diameter of branch pipe Material spec Thickness Branch inclination Allowable stress for branch material from 31.3 Co-eff. from table 304.1 Quality factor from 31.3 (E) Mill tolerance Min. thickness of main header (Th) Min. thickness of branch header (Tb) Pressure design thickness of main header (th) Pressure design thickness of branch header (tb)

inches 508.00 inches A106 GR.B 0.237 inches 90.00 degrees 1.57 radians 18900.00 PSI 0.40 Const.( Pg. 20 - ANSI 31.3) 1.00 Const.(Pg. 209 - ANSI 31.3) 0.01 0.371 inches 0.235 inches 9.59 inches 5.33 inches

Height of reinforcement zone outside run pipe (L4)

0.437

OR

Hence L4 (whichever is less)

0.437 inches

Effective length removed from pipe at branch (d1) / Half width reinforcement zone (d2) ( Whichever is greater)

507.65

OR

Hence d2/d1

507.65 inches

tc (whichever is less) Hence tc

0.17 OR 0.17 inches

Minimum leg dimension of fillet weld

0.23 inches

Reinforcement area required (A1)

4869.01 Sq. Inch

Reinforcement area available in run pipe (A2)

-4711.11 Sq. Inch

Reinforcement area available in run pipe (A3)

-4.50 Sq. Inch

Area of fillet welds(A4) Available reinforcement area (A5) RESULT REINFORCEMENT IS REQUIRED Incase additional reinforcement is required:

0.06 Sq. Inch -4715.55 Sq. Inch

0.778 inches

254.31 inches

0.25

inches

Thickness of RF pad (Tr) - assume Std. Thk.

0.000 inches

Diameter of RF pad (assume )

0.000 inches

Allowable stress for RF pad from ANSI 31.3

### PSI

Area available in RF pad (A6)

0.00 Sq. Inch

tc - For RF pad

0.00 inches

Minimum leg dimension of fillet weld

0.00 inches

Area available in fillet welds (A7) Available area (A8) RESULT REINFORCEMENT IS INSUFFICIENT

0.000 Sq. Inch -4715.55 Sq. Inch

DATE : 22/05/2001

SHEET No:

CALC. BY: YSR CHECKED BY : PLANT / UNIT No. : RPL

APPROVED BY: CALC No. :

SPEC.: EC32EA LINE SIZE : Branch Reinforcement Calculation (Only highlighted data to be filled) SPEC Branch dia/Header dia ratio (d/D) Design conditions As per LDT Design Temperature

Design Pressure

corrosion allowance (C) Header information Nominal Size Outside diameter of header pipe Material spec Thickness Allowable stress for header material from 31.3 Coeff from table 304.1 ( Pg. 20 - ANSI 31.3) Quality factor from 31.3 (E) Branch information Nominal Size Outside diameter of branch pipe Material spec Thickness Branch inclination Allowable stress for branch material from 31.3 Co-eff. from table 304.1 Quality factor from 31.3 (E) Mill tolerance Min. thickness of main header (Th) Min. thickness of branch header (Tb) Pressure design thickness of main header (th)

Hot Tap Cal.ref no. Dated: EC32EA 0.56 427.00 degrees 800.60 Fahrenheit 28.00 Kg/sqcm2 398.16 PSI 0.06 inches

10 36.00 A358 -316L 0.375 10800.00 0.40 0.85

inches inches

8.00 20.00 A106 GR.B 0.375 90.00 1.57 10800.00 0.40 1.00

inches inches

inches PSI (Pg. 154 ANSI 31.3) Const. Const.(Pg. 209 ANSI 31.3)

inches degrees radians PSI See( Pg. 20 - ANSI 31.3) See(Pg. 209 - ANSI 31.3)

0.01 0.371 inches 0.371 inches 0.77 inches

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Pressure design thickness of branch header (tb)

0.37 inches

Height of reinforcement zone outside run pipe (L4)

1.152

OR

Hence L4 (whichever is less)

0.778 inches

Effective length removed from pipe at branch (d1) /Half width reinforcement zone (d2) ( Whichever is greater)

19.38

Hence d2/d1

19.38 inches

OR

tc (whichever is less) Hence tc

0.26 OR 0.25 inches

Minimum leg dimension of fillet weld

0.35 inches

Reinforcement area required (A1)

15.00 Sq. Inch

Reinforcement area available in run pipe (A2) Reinforcement area available in run pipe (A3)

-8.97 Sq. Inch -0.09 Sq. Inch

Area of fillet welds(A4)

0.13 Sq. Inch

Available reinforcement area (A5) RESULT REINFORCEMENT IS REQUIRED Incase additional reinforcement is required:

-8.93 Sq. Inch

Thickness of RF pad (Tr) - assume Std. Thk.

0.375 inches

Diameter of RF pad (assume ) Allowable stress for RF pad from ANSI 31.3 Area available in RF pad (A6)

16.000 inches 10800.00 PSI -1.50 Sq. Inch

tc - For RF pad

0.19 inches

Minimum leg dimension of fillet weld

0.27 inches

Area available in fillet welds (A7) Available area (A8)

0.070 Sq. Inch -10.36 Sq. Inch

RESULT REINFORCEMENT IS INSUFFICIENT

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SHEET No:

JOB No:

1OF2

22960

FILE No:

Fahrenheit

PSI (Pg. 154 ANSI 31.3) Const.(Pg. 209 ANSI 31.3)

See( Pg. 20 - ANSI 31.3) See(Pg. 209 - ANSI 31.3)

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0.778 inches

10.31 inches

0.25

inches

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CALCULATION SHEET DATE : 9/12/2003 CALC. BY: YSR

PLANT / UNIT No. : RPL

CHECKED BY :

YSR

APPROVED BY:

SS

CALC No. :

RF PAD

LINE SIZE :

4X8

SPEC.: EC14EA(TEMP 150DegreeC To -29DegreeC)

LINE:J1312-312-PA393 Branch Reinforcement Calculation

(Full Sleeve for HOT TAP)

(Only highlighted data to be filled) EC14EA

SPEC Branch dia/Header dia ratio (d/D)

0.29

Design conditions As per LDT Design Temperature

232.00 degrees 449.60 Fahrenheit

Design Pressure

3.50 Kg/sqcm2 49.77 PSI

corrosion allowance (C)

0.06 inches

Header information Nominal Size

70 inches

Outside diameter of header pipe

70.00 inches

Material spec

A671 CB6013

Thickness

0.750 inches

Allowable stress for header material from 31.3

17500.00 PSI (Pg. 154 ANSI 31.3)

Coeff from table 304.1 ( Pg. 20 - ANSI 31.3)

0.40 Const.

Quality factor from 31.3 (E)

0.85 Const.(Pg. 209 ANSI 31.3

Branch information Nominal Size

20.00 inches

Outside diameter of branch pipe

20.00 inches

Material spec

A671 CB6013

Thickness

0.37480315 inches

Branch inclination

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90.00 degrees

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1.57 radians

Allowable stress for branch material from 31.3

17500.00 PSI

Co-eff. from table 304.1

0.40 See( Pg. 20 - ANSI 31.3)

Quality factor from 31.3 (E)

0.85 See(Pg. 209 - ANSI 31.3)

Mill tolerance

0.125

Min. thickness of main header (Th)

0.656 inches

Min. thickness of branch header (Tb)

0.328 inches

Pressure design thickness of main header (th)

0.12 inches

Pressure design thickness of branch header (tb)

0.03 inches

Height of reinforcement zone outside run pipe (L4)

1.414

OR

Hence L4 (whichever is less)

1.414 inches

Effective length removed from pipe at branch (d1) /Half width reinforcement zone (d2) ( Whichever is greater)

19.47

Hence d2/d1 tc (whichever is less)

19.47 inches 0.26 OR

OR

Hence tc Minimum leg dimension of fillet weld

0.25 inches 0.35 inches

Reinforcement area required (A1)

2.28 Sq. Inch

Reinforcement area available in run pipe (A2)

9.28 Sq. Inch

Reinforcement area available in run pipe (A3)

0.66 Sq. Inch

Area of fillet welds(A4)

0.13 Sq. Inch

Available reinforcement area (A5)

10.06 Sq. Inch

RESULT NO ADDITIONAL REINFORCEMENT IS REQD. Incase additional reinforcement is required: Thickness of RF pad (Tr) - assume Std. Thk. Diameter of RF pad (assume )

0.750 inches 30.000 inches

Allowable stress for RF pad from ANSI 31.3

17500.00 PSI

Area available in RF pad (A6)

7.50 Sq. Inch

tc - For RF pad Minimum leg dimension of fillet weld

0.38 inches 0.53 inches

Area available in fillet welds (A7)

0.281 Sq. Inch

Available area (A8)

17.84 Sq. Inch

RESULT REINFORCEMENT WITH ASSUMED RF PAD SIZE IS O.K

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SHEET No:

1 OF 2

JOB No:

22960

FCO No:

CPP-195

PSI (Pg. 154 ANSI 31.3)

Const.(Pg. 209 ANSI 31.3)

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See( Pg. 20 - ANSI 31.3) See(Pg. 209 - ANSI 31.3)

1.484 inches 10.59 inches

0.25

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