Threads 

ANSI/ASME B1.20.1,DIN2999,NPT,ISO 7,ISO 228,DIN 259.
Whitworth pipe thread as per DIN/ISO 228 Short: G 
Cylindrical female thread, cylindrical male thread. Application: pipe thread for connection that does not seal in the thread 
¡¡ ¡¡ TAPER TAPER PARALLEL PARALEL
EXTERNAL INTERNAL EXTERNAL INTERNAL
BS 2779 APPLICATION NO NO YES YES
SYMBOL --- --- BSPF BSPF
DESIGNATION --- --- G 1/2A G 1/2B G 1/2
PITCH Ø OF 1'' --- --- A:31.770+0.000, 31.770+0.180,
-0.18 0
¡¡ ¡¡ ¡¡ B:31.770+0.000, ¡¡
-0.38
ISO 228 APPLICATION NO NO YES YES
SYMBOL --- --- PF PF
DESIGNATION --- --- G 1/2A / G 1/2B G 1/2
PITCH Ø OF 1'' ¡¡ ¡¡ A:31.770+0.000, 31.770+0.180,
-0.18 0
¡¡ ¡¡ ¡¡ B:31.770+0.000, ¡¡
-0.38
DIN 259 APPLICATION NO NO YES YES
SYMBOL --- --- PF PF
DESIGNATION --- --- R 1/2 R 1/2
PITCH Ø OF 1'' --- --- M:31.770+0.000, 31.770+0.180,
-0.18 0
¡¡ ¡¡ ¡¡ G:31.770+0.000, ¡¡
-0.38
BS 21 APPLICATION YES YES NO YES
SYMBOL BSPT BSPT --- BSP
DESIGNATION R 1/2 Rc 1/2 --- Rp 1/2
PITCH Ø OF 1'' 31.77 31.77 --- 31.770¡Ó0.180
TOLERANCE UP TO 2" : ¡Ó1T UP TO 2": ¡Ó1-1/4T ¡¡ ¡¡
¡¡ OVER 2-1/2: ¡Ó1-1/2T OVER 2-1/2: ¡Ó1-1/2T ¡¡ ¡¡
ISO 7 APPLICATION YES YES NO YES
SYMBOL PT PT --- PS
DESIGNATION R 1/2 Rc 1/2 --- Rp 1/2
PITCH Ø OF 1'' 31.77 31.77 --- 31.770¡Ó0.180
TOLERANCE UP TO 2" : ¡Ó1T UP TO 2" : ¡Ó1-1/4T ¡¡ ¡¡
¡¡ OVER 2-1/2 : ¡Ó1-1/2T OVER 2-1/2 : ¡Ó1-1/2T ¡¡ ¡¡
DIN 2999 APPLICATION YES NO NO YES
SYMBOL PT --- --- PS
DESIGNATION DIN2999 -R1/2 --- --- DIN 2999 - Rp 1/2
TOLERANCE UP TO 2" : ¡Ó1T ¡¡ ¡¡ 31.770¡Ó0.180
¡¡ OVER 2-1/2": ¡Ó1-1/2T ¡¡ ¡¡ ¡¡
ANSI B1.20.1 APPLICATION YES YES YES YES
SYMBOL NPT NPT NPSH/OTHERS NPSH/OTHERS
PITCH Ø OF 1'' 31.461 31.461 31.344¡Ó0.074 31.557¡Ó0.097
TOLERANCE ¡Ó1T ¡Ó1T ¡¡ ¡¡
ANSI B1.20.3 APPLICATION YES YES NO NO
SYMBOL NPSH/OTHERS NPSH/OTHERS --- ---
PITCH Ø OF 1'' 31.461 31.461 ¡¡ ¡¡
TOLERANCE LT : ¡Ó1T LT : ¡Ó1T ¡¡ ¡¡
¡¡ L2 : ¡Ó1/2T TO L1 POSTION L3 : ¡Ó1/2T TO L1 POSTION ¡¡ ¡¡
¡¡ ¡¡ ¡¡ ¡¡ ¡¡ ¡¡
Mark Type Relate Size
UNC / UNRC Unified Coarse Thread Series ANSI B1.1 ¡¡ ¡¡ BS 1580
UNF / UNRF Unified Fine Thread Series ANSI B1.1 ¡¡ ¡¡ BS 1580
UNEF / UNREF Unified Extra Fine Thread Series ANSI B1.1 ¡¡ ¡¡ BS 1580
UNS / UNRS Unified Thread of Special ANSI B1.1 ¡¡ ¡¡ BS 1580
¡¡ Diameters Pitches and Lengths ¡¡ ¡¡ ¡¡ ¡¡
¡¡ Engagement ¡¡ ¡¡ ¡¡ ¡¡
NEF American National Extra Find ANSI B1.1 ¡¡ ¡¡ ¡¡
¡¡ Thread Series ¡¡ ¡¡ ¡¡ ¡¡
NH/NST American National Hose Coupling ANSI B2.4 ¡¡ ¡¡ ¡¡
¡¡ and Firehose Couplings Threads ¡¡ ¡¡ ¡¡ ¡¡
NPT American Standard Taper Pipe ANSI B2.1 ¡¡ ¡¡ ¡¡
¡¡ Threads for General ¡¡ ¡¡ ¡¡ ¡¡
NPSM American Standard Straight Pipe ANSI B2.1 ¡¡ ¡¡ ¡¡
¡¡ Threads for Free Fitting Mechanical ¡¡ ¡¡ ¡¡ ¡¡
¡¡ Joints for fixture ¡¡ ¡¡ ¡¡ ¡¡
NPSH American Standard Straight Pipe ANSI B2.1 ¡¡ ¡¡ ¡¡
¡¡ Threads for Loose Fitting ¡¡ ¡¡ ¡¡ ¡¡
¡¡ Mechanical joints for Hose ¡¡ ¡¡ ¡¡ ¡¡
¡¡ Couplings ¡¡ ¡¡ ¡¡ ¡¡
NPTF Dryseal American Standard Taper ANSI B2.2 ¡¡ ¡¡ ¡¡
¡¡ Pipe Threads ¡¡ ¡¡ ¡¡ ¡¡
M ISO Metric Threads ¡¡ JIS B 0205 ISO 261 BS 3643
S ISO Miniature Screw Thread ¡¡ JIS B 0201 ISOR 1051 BS 4827
Tr Metric Taper Threads ¡¡ JIS B 0216 ISO 2902 BS 5346
Tw 29 Deg. Taper Threads ¡¡ JIS B 0222 ¡¡ ¡¡
R Taper Male Threads for pipes ¡¡ JIS B 0203 ISO 7/1 ¡¡
Rc Taper female Threads for pipes ¡¡ JIS B 0203 ISO 7/1 ¡¡
Rp Parallel Female Threads to "R" for pipes ¡¡ JIS B 0203 ISO 7/1 ¡¡
G Parallel Female Thread for pipes in Machanical Connection ¡¡ JIS B 0202 ¡¡ ¡¡
PF Parallel Threads for pipes ¡¡ JIS B 0202 ISO 228/1 ¡¡
PT Taper Threads for pipes ¡¡ JIS B 0203 ¡¡ ¡¡
PS Parallel Female Threads to "R" for pipes ¡¡ JIS B 0203 ¡¡ ¡¡
BSW British Standard Whitworth Threads ¡¡ ¡¡ ¡¡ BS 84
BSF British Standard Find Thread ¡¡ ¡¡ ¡¡ BS 84
ACME Acme Thread General Purpose ¡¡ ¡¡ ¡¡ BS 1104

¡¡

¡¡

Thread

No. of turns

p

h

Max. outer diam. Ø

Flank diam. Ø

Min. core diam. Ø

for male thread AG

for female thread IG

G 1/8¡±

28

0,907

0,581

9,728

9,147

8,566

G 1/4¡±

19

1,337

0,856

13,157

12,301

11,445

G 3/8¡±

19

1,337

0,856

16,662

15,806

14,950

G 1/2¡±

14

1,814

1,162

20,955

19,793

18,631

G 5/8¡±

14

1,814

1,162

22,911

21,749

20,587

G 3/4¡±

14

1,814

1,162

26,441

25,279

24,117

G 1¡±

11

2,309

1,479

33,249

31,770

30,291

G 1 1/8¡±

11

2,309

1,479

37,897

36,418

34,939

G 1 1/4¡±

11

2,309

1,479

41,910

40,431

38,952

G 1 1/2¡±

11

2,309

1,479

47,803

46,324

44,845

G 1 3/4¡±

11

2,309

1,479

53,746

52,267

50,788

G 2¡±

11

2,309

1,479

59,614

58,135

56,656

G 2 1/4¡±

11

2,309

1,479

65,710

64,231

62,752

G 2 1/2¡±

11

2,309

1,479

75,184

73,705

72,226

G 2 3/4¡±

11

2,309

1,479

81,534

80,055

78,576

G 3¡±

11

2,309

1,479

87,884

86,405

84,926

G 3 1/2¡±

11

2,309

1,479

100,330

98,851

97,372

G 4¡±

11

2,309

1,479

113,030

111,551

110,072

Whitworth pipe thread as per DIN 2999 Short: Rp (female thread), R (male thread) 
Cylindrical female thread, conical male thread. Application: pipe thread for connection that seals in the thread if sealing material is used 

Male thread

Female thread

Outer pipe

No.

P

h

Outer

Flank

Core

DN

R

R

P

diam.

of turns

diam. Ø

diam. Ø

diam. Ø

6

R

1/8¡±

Rp

1/8¡±

10,2

28

0,907

0,581

9,728

9,147

8,566

8

R

1/4¡±

Rp

1/4¡±

13,5

19

1,337

0,856

13,157

12,301

11,445

10

R

3/8¡±

Rp

3/8¡±

17,2

19

1,337

0,856

16,662

15,806

14,950

15

R

1/2¡±

Rp

1/2¡±

21,3

14

1,814

1,162

20,955

19,793

18,631

20

R

3/4¡±

Rp

3/4¡±

26,9

14

1,814

1,162

26,441

25,279

24,117

25

R

1¡±

Rp

1¡±

33,7

11

2,309

1,479

33,249

31,770

30,291

32

R

1 1/4¡±'

Rp

1 1/4¡±

42,4

11

2,309

1,479

41,91

40,431

38,952

40

R

1 1/2¡±

Rp

1 1/2¡±

48,3

11

2,309

1,479

47,803

46,324

44,852

50

R

2¡±

Rp

2¡±

60,3

11

2,309

1,479

59,614

58,135

56,656

65

R

2 1/2¡±

Rp

2 1/2¡±

76,1

11

2,309

1,479

75,184

73,705

72,226

80

R

3¡±

Rp

3¡±

88,9

11

2,309

1,479

87,884

86,341

84,926

American conical pipe thread according to ANSI/ASME B1.20.1-1 Short: NPT 
Conical female thread, conical male thread. Application: pipe thread for connection that seals in the thread if sealing material is used

Thread

Outer pipe

No. of turns

P

h

Flank diam.

L1

i

diam.

Ø E1

1/8¡±

NPT

10,287

27

0,941

0,753

9,489

4,102

6,703

1/4¡±

NPT

13,761

18

1,411

1,129

12,487

5,786

10,206

3/8¡±

NPT

17,145

18

1,411

1,129

15,926

6,096

10,358

1/2¡±

NPT

21,336

14

1,814

1,451

19,772

8,128

13,556

3/4¡±

NPT

26,670

14

1,814

1,451

25,117

8,611

13,861

1¡±

NPT

33,401

11 1/2

2,209

1,767

31,461

10,160

17,343

1 1/4¡±

NPT

42,164

11 1/2

2,209

1,767

40,218

10,668

17,953

1 1/2¡±

NPT

48,260

11 1/2

2,209

1,767

46,287

10,668

18,377

§²§¦§©§¾§¢§¡ §´§²§µ§¢§¯§¡§Á §¸§ª§­§ª§¯§¥§²§ª§¹§¦§³§¬§¡§Á 
Pipe cylindrical thread
§¤§°§³§´ 6357-81

d - §ß§Ñ§â§å§Ø§ß§í§Û §Õ§Ú§Ñ§Þ§Ö§ä§â §ß§Ñ§â§å§Ø§ß§à§Û §â§Ö§Ù§î§Ò§í (§ä§â§å§Ò§í);
d1 - §Ó§ß§å§ä§â§Ö§ß§ß§Ú§Û §Õ§Ú§Ñ§Þ§Ö§ä§â §ß§Ñ§â§å§Ø§ß§à§Û §â§Ö§Ù§î§Ò§í;
d2 - §ã§â§Ö§Õ§ß§Ú§Û §Õ§Ú§Ñ§Þ§Ö§ä§â §ß§Ñ§â§å§Ø§ß§à§Û §â§Ö§Ù§î§Ò§í;
D - §ß§Ñ§â§å§Ø§ß§í§Û §Õ§Ú§Ñ§Þ§Ö§ä§â §Ó§ß§å§ä§â§Ö§ß§ß§Ö§Û §â§Ö§Ù§î§Ò§í (§Þ§å§æ§ä§í);
D1 - §Ó§ß§å§ä§â§Ö§ß§ß§Ú§Û §Õ§Ú§Ñ§Þ§Ö§ä§â §Ó§ß§å§ä§â§Ö§ß§ß§Ö§Û §â§Ö§Ù§î§Ò§í;
D2 - §ã§â§Ö§Õ§ß§Ú§Û §Õ§Ú§Ñ§Þ§Ö§ä§â §Ó§ß§å§ä§â§Ö§ß§ß§Ö§Û §â§Ö§Ù§î§Ò§í;
P - §ê§Ñ§Ô §â§Ö§Ù§î§Ò§í;
§¯ - §Ó§í§ã§à§ä§Ñ §Ú§ã§ç§à§Õ§ß§à§Ô§à §ä§â§Ö§å§Ô§à§Ý§î§ß§Ú§Ü§Ñ;
H1 - §â§Ñ§Ò§à§é§Ñ§ñ §Ó§í§ã§à§ä§Ñ §á§â§à§æ§Ú§Ý§ñ;
R - §â§Ñ§Õ§Ú§å§ã §Ù§Ñ§Ü§â§å§Ô§Ý§Ö§ß§Ú§ñ §Ó§Ö§â§ê§Ú§ß§í §Ú §Ó§á§Ñ§Õ§Ú§ß§í §â§Ö§Ù§î§Ò§í

§´§Ñ§Ò§Ý§Ú§è§Ñ 1. §²§Ñ§Ù§Þ§Ö§â§í §Ó §Þ§Þ

§º§Ñ§Ô §²

§¹§Ú§ã§Ý§à §ê§Ñ§Ô§à§Ó z §ß§Ñ §Õ§Ý§Ú§ß§Ö 25,4 §Þ§Þ

H=0.960491 P

H1=0.640327 P

H/6 = 0.160082 P

R = 0.137329 P

0.907
1,337
1,814
2,309

28
19
14
11

0,871165
1,284176
1,742331
2,217774

0.580777
0,856117
1,161553
1,478515

0,145194
0,214029
0,290389
0,369629

0,124557
0,183609
0,249115
0,317093

§±§â§Ú§Þ§Ö§é§Ñ§ß§Ú§Ö. §¹§Ú§ã§Ý§à§Ó§í§Ö §Ù§ß§Ñ§é§Ö§ß§Ú§ñ §ê§Ñ§Ô§à§Ó §à§á§â§Ö§Õ§Ö§Ý§Ö§ß§í §Ú§Ù §ã§à§à§ä§ß§à§ê§Ö§ß§Ú§ñ §²=25,4/z §ã §à§Ü§â§å§Ô§Ý§Ö§ß§Ú§Ö§Þ §Õ§à 3-§Ô§à §Ù§ß§Ñ§Ü§Ñ §á§à§ã§Ý§Ö §Ù§Ñ§á§ñ§ä§à§Û §Ú §á§â§Ú§ß§ñ§ä§í §Ó §Ü§Ñ§é§Ö§ã§ä§Ó§Ö §Ú§ã§ç§à§Õ§ß§í§ç §á§â§Ú §â§Ñ§ã§é§Ö§ä§Ö §à§ã§ß§à§Ó§ß§í§ç §ï§Ý§Ö§Þ§Ö§ß§ä§à§Ó §á§â§à§æ§Ú§Ý§ñ

1.2. §£§Ö§â§ê§Ú§ß§í §ß§Ñ§â§å§Ø§ß§à§Û §â§Ö§Ù§î§Ò§í, §Ñ §ä§Ñ§Ü§Ø§Ö §Ó§ß§å§ä§â§Ö§ß§ß§Ö§Û §â§Ö§Ù§î§Ò§í §Õ§à§á§å§ã§Ü§Ñ§Ö§ä§ã§ñ §Ó§í§á§à§Ý§ß§ñ§ä§î §ã §á§Ý§à§ã§Ü§Ú§Þ §ã§â§Ö§Ù§à§Þ §Ó §ä§Ö§ç §ã§Ý§å§é§Ñ§ñ§ç, §Ü§à§Ô§Õ§Ñ §Ú§ã§Ü§Ý§ð§é§Ö§ß§Ñ §Ó§à§Ù§Þ§à§Ø§ß§à§ã§ä§î §Ö§Ö §ã§à§Ö§Õ§Ú§ß§Ö§ß§Ú§ñ §ã §ß§Ñ§â§å§Ø§ß§à§Û §Ü§à§ß§Ú§é§Ö§ã§Ü§à§Û §â§Ö§Ù§î§Ò§à§Û §á§à §¤§°§³§´ 6211-81.

2. §°§³§¯§°§£§¯§½§¦ §²§¡§©§®§¦§²§½

2.3. §°§Ò§à§Ù§ß§Ñ§é§Ö§ß§Ú§Ö §â§Ñ§Ù§Þ§Ö§â§Ñ §â§Ö§Ù§î§Ò§í, §ê§Ñ§Ô§Ú §Ú §ß§à§Þ§Ú§ß§Ñ§Ý§î§ß§í§Ö §Ù§ß§Ñ§é§Ö§ß§Ú§ñ §ß§Ñ§â§å§Ø§ß§à§Ô§à, §ã§â§Ö§Õ§ß§Ö§Ô§à §Ú §Ó§ß§å§ä§â§Ö§ß§ß§Ö§Ô§à §Õ§Ú§Ñ§Þ§Ö§ä§â§à§Ó §â§Ö§Ù§î§Ò§í §Õ§à§Ý§Ø§ß§í §ã§à§à§ä§Ó§Ö§ä§ã§ä§Ó§à§Ó§Ñ§ä§î §å§Ü§Ñ§Ù§Ñ§ß§ß§í§Þ §ß§Ñ §é§Ö§â§ä. 1 §Ú §Ó §ä§Ñ§Ò§Ý. 2.

§±§â§Ú §Ó§í§Ò§à§â§Ö §â§Ñ§Ù§Þ§Ö§â§à§Ó §á§Ö§â§Ó§í§Û §â§ñ§Õ §ã§Ý§Ö§Õ§å§Ö§ä §á§â§Ö§Õ§á§à§é§Ú§ä§Ñ§ä§î §Ó§ä§à§â§à§Þ§å.

§´§Ñ§Ò§Ý§Ú§è§Ñ 2. §²§Ñ§Ù§Þ§Ö§â§í §Ó §Þ§Þ

2.2. §¹§Ú§ã§Ý§à§Ó§í§Ö §Ù§ß§Ñ§é§Ö§ß§Ú§ñ §Õ§Ú§Ñ§Þ§Ö§ä§â§à§Ó d2 §Ú d1 §Ó§í§é§Ú§ã§Ý§ñ§ð§ä §á§à §ã§Ý§Ö§Õ§å§ð§ë§Ú§Þ §æ§à§â§Þ§å§Ý§Ñ§Þ.

d2 = D2 = d - 0.640327 P (1)
d1 = D1 = d - 1.280654 P (2)

§¹§Ú§ã§Ý§à§Ó§í§Ö §Ù§ß§Ñ§é§Ö§ß§Ú§ñ §Õ§Ú§Ñ§Þ§Ö§ä§â§Ñ d §å§ã§ä§Ñ§ß§à§Ó§Ý§Ö§ß§í §ï§Þ§á§Ú§â§Ú§é§Ö§ã§Ü§Ú.

3. §¥§°§±§µ§³§¬§ª

3.1. §³§ç§Ö§Þ§í §á§à§Ý§Ö§Û §Õ§à§á§å§ã§Ü§à§Ó §ß§Ñ§â§å§Ø§ß§à§Û §Ú §Ó§ß§å§ä§â§Ö§ß§ß§Ö§Û §â§Ö§Ù§î§Ò§í §á§â§Ú§Ó§Ö§Õ§Ö§ß§í §ß§Ñ §é§Ö§â§ä. 2.

§°§ä§Ü§Ý§à§ß§Ö§ß§Ú§ñ §à§ä§ã§é§Ú§ä§í§Ó§Ñ§ð§ä §à§ä §ß§à§Þ§Ú§ß§Ñ§Ý§î§ß§à§Ô§à §á§â§à§æ§Ú§Ý§ñ §â§Ö§Ù§î§Ò§í §Ó §ß§Ñ§á§â§Ñ§Ó§Ý§Ö§ß§Ú§Ú §á§Ö§â§á§Ö§ß§Õ§Ú§Ü§å§Ý§ñ§â§ß§à§Þ §à§ã§Ú §â§Ö§Ù§î§Ò§í.

3.2. §¥§à§á§å§ã§Ü§Ú §ã§â§Ö§Õ§ß§Ö§Ô§à §Õ§Ú§Ñ§Þ§Ö§ä§â§Ñ §â§Ö§Ù§î§Ò§í §å§ã§ä§Ñ§ß§Ñ§Ó§Ý§Ú§Ó§Ñ§ð§ä §Õ§Ó§å§ç §Ü§Ý§Ñ§ã§ã§à§Ó §ä§à§é§ß§à§ã§ä§Ú - §¡ §Ú §£.

 

es - §Ó§Ö§â§ç§ß§Ö§Ö §à§ä§Ü§Ý§à§ß§Ö§ß§Ú§Ö §Õ§Ú§Ñ§Þ§Ö§ä§â§à§Ó §ß§Ñ§â§å§Ø§ß§à§Û §â§Ö§Ù§î§Ò§í;
ES - §Ó§Ö§â§ç§ß§Ö§Ö §à§ä§Ü§Ý§à§ß§Ö§ß§Ú§Ö §Õ§Ú§Ñ§Þ§Ö§ä§â§à§Ó §Ó§ß§å§ä§â§Ö§ß§ß§Ö§Û §â§Ö§Ù§î§Ò§í;
ei - §ß§Ú§Ø§ß§Ö§Ö §à§ä§Ü§Ý§à§ß§Ö§ß§Ú§Ö §Õ§Ú§Ñ§Þ§Ö§ä§â§à§Ó §ß§Ñ§â§å§Ø§ß§à§Û §â§Ö§Ù§î§Ò§í;
EI - §ß§Ú§Ø§ß§Ö§Ö §à§ä§Ü§Ý§à§ß§Ö§ß§Ú§Ö §Õ§Ú§Ñ§Þ§Ö§ä§â§à§Ó §Ó§ß§å§ä§â§Ö§ß§ß§Ö§Û §â§Ö§Ù§î§Ò§í;
Td, Td2, TD1, TD2 - §Õ§à§á§å§ã§Ü§Ú §Õ§Ú§Ñ§Þ§Ö§ä§â§à§Ó d, d1, D1, D2.

§¥§à§á§å§ã§Ü§Ú §ã§â§Ö§Õ§ß§Ö§Ô§à §Õ§Ú§Ñ§Þ§Ö§ä§â§Ñ §â§Ö§Ù§î§Ò§í §ñ§Ó§Ý§ñ§ð§ä§ã§ñ §ã§å§Þ§Þ§Ñ§â§ß§í§Þ§Ú.

§¥§à§á§å§ã§Ü§Ú §Õ§Ú§Ñ§Þ§Ö§ä§â§à§Ó d1§Ú D §ß§Ö §å§ã§ä§Ñ§ß§Ñ§Ó§Ý§Ú§Ó§Ñ§ð§ä§ã§ñ.

§¤§°§³§´ 6357-81 (§á§â§à§Õ§à§Ý§Ø§Ö§ß§Ú§Ö)

3.3. §¹§Ú§ã§Ý§à§Ó§í§Ö §Ù§ß§Ñ§é§Ö§ß§Ú§ñ §Õ§à§á§å§ã§Ü§à§Ó §Õ§Ú§Ñ§Þ§Ö§ä§â§à§Ó §ß§Ñ§â§å§Ø§ß§à§Û §Ú §Ó§ß§å§ä§â§Ö§ß§ß§Ö§Û §â§Ö§Ù§î§Ò§í §Õ§à§Ý§Ø§ß§í §ã§à§à§ä§Ó§Ö§ä§ã§ä§Ó§à§Ó§Ñ§ä§î §á§â§Ú§Ó§Ö§Õ§Ö§ß§ß§í§Þ §Ó §ä§Ñ§Ò§Ý. 3.

§´§Ñ§Ò§Ý§Ú§è§Ñ 3

§°§Ò§à§Ù§ß§Ñ§é§Ö§ß§Ú§Ö §â§Ñ§Ù§Þ§Ö§â§Ñ §â§Ö§Ù§î§Ò§í

§º§Ñ§Ô §², §Þ§Þ

§¯§Ñ§â§å§Ø§ß§Ñ§ñ §â§Ö§Ù§î§Ò§Ñ

§£§ß§å§ä§â§Ö§ß§ß§ñ§ñ §â§Ö§Ù§î§Ò§Ñ

§¥§Ú§Ñ§Þ§Ö§ä§â§í §â§Ö§Ù§î§Ò§í

d

d2

D2

D1

§¥§à§á§å§ã§Ü§Ú, §Þ§Ü§Þ

Td

Td2

TD2

TD1

§¬§Ý§Ñ§ã§ã §¡

§¬§Ý§Ñ§ã§ã §£

§¬§Ý§Ñ§ã§ã §¡

§¬§Ý§Ñ§ã§ã §£

1/16
1/8

0,907

214
214

107
107

214
214

107
107

214
214

282
282

1/4
3/8

1,337

250
250

125
125

250
250

125
125

250
250

445
445

1/2
5/8
3/4
7/8

1,814

284
284
284
284

142
142
142
142

284
284
284
284

142
142
142
142

284
284
284
284

541
541
541
541

1
1 1/3
1 1/4

2,309

360
360
360

180
180
180

360
360
360

180
180
180

360
360
360

640
640
640

1
1 3/8
1 1/2
2 3/4

2,309

360
360
360
360

180
180
180
180

360
360
360
360

180
180
180
180

360
360
360
360

640
640
640
640

2 1/4
2 1/2
2 3/4

434
434
434

217
217
217

434
434
434

217
217
217

434
434
434

640
640
640

3
3 1/4
3 1/2

434
434
434

217
217
217

434
434
434

217
214
217

434
434
434

640
640
640

3 3/4
4
4 1/2

434
434
434

217
217
217

434
434
434

217
217
217

434
434
434

640
640
640

5
5 1/2
6

434
434
434

217
217
217

434
434
434

217
217
217

434
434
434

640
640
640

§±§â§Ú§Þ§Ö§é§Ñ§ß§Ú§Ö. §¹§Ú§ã§Ý§à§Ó§í§Ö §Ù§ß§Ñ§é§Ö§ß§Ú§ñ §Õ§à§á§å§ã§Ü§à§Ó §å§ã§ä§Ñ§ß§à§Ó§Ý§Ö§ß§í §ï§Þ§á§Ú§â§Ú§é§Ö§ã§Ü§Ú.

3.4. §¥§Ý§Ú§ß§í §ã§Ó§Ú§ß§é§Ú§Ó§Ñ§ß§Ú§ñ §á§à§Õ§â§Ñ§Ù§Õ§Ö§Ý§ñ§ð§ä §ß§Ñ §Õ§Ó§Ö §Ô§â§å§á§á§í: §ß§à§â§Þ§Ñ§Ý§î§ß§í§Ö N §Ú §Õ§Ý§Ú§ß§ß§í§Ö L.

§¥§Ý§Ú§ß§í §ã§Ó§Ú§ß§é§Ú§Ó§Ñ§ß§Ú§ñ, §à§ä§ß§à§ã§ñ§ë§Ú§Ö§ã§ñ §Ü §Ô§â§å§á§á§Ñ§Þ N §Ú L, §á§â§Ú§Ó§Ö§Õ§Ö§ß§í §Ó §ä§Ñ§Ò§Ý. 4.

§´§Ñ§Ò§Ý§Ú§è§Ñ 4. §²§Ñ§Ù§Þ§Ö§â§í §Ó §Þ§Þ

§°§Ò§à§Ù§ß§Ñ§é§Ö§ß§Ú§Ö §â§Ñ§Ù§Þ§Ö§â§Ñ §â§Ö§Ù§î§Ò§í

§º§Ñ§Ô §²

§¥§Ý§Ú§ß§Ñ §ã§Ó§Ú§ß§é§Ú§Ó§Ñ§ß§Ú§ñ

§°§Ò§à§Ù§ß§Ñ§é§Ö§ß§Ú§Ö §â§Ñ§Ù§Þ§Ö§â§Ñ §â§Ö§Ù§î§Ò§í

§º§Ñ§Ô §²

§¥§Ý§Ú§ß§Ñ §ã§Ó§Ú§ß§é§Ú§Ó§Ñ§ß§Ú§ñ

N

L

N

L

1/16
1/8

0,907

§³§Ó. 4 §Õ§à 12

§³§Ó. 12

2
2 1/4
2 1/2
2 3/4
3

2,309

§³§Ó. 12 §Õ§à 36

§³§Ó. 36

1/4
3/8

1,337

§³§Ó. 5 §Õ§à 16

§³§Ó. 16

1/2
5/8
§©/4
7/8

1,814

§³§Ó. 7 §Õ§à 22

§³§Ó. 22

3 1/4
3 1/2
3 3/4
4
4 1/2
5
5 1/2
6

2,309

§³§Ó. 13 §Õ§à 40

§³§Ó. 40

1
1 1/3
1 1/4
1 3/8

2,309

§³§Ó. 10 §Õ§à 30

§³§Ó. 30

1 1/2
1 3/4

2,309

§³§Ó 12 §Õ§à 36

§³§Ó. 36

§±§â§Ú§Þ§Ö§é§Ñ§ß§Ú§Ö. §¹§Ú§ã§Ý§à§Ó§í§Ö §Ù§ß§Ñ§é§Ö§ß§Ú§ñ §Õ§Ý§Ú§ß §ã§Ó§Ú§ß§é§Ú§Ó§Ñ§ß§Ú§ñ §å§ã§ä§Ñ§ß§à§Ó§Ý§Ö§ß§í §ï§Þ§á§Ú§â§Ú§é§Ö§ã§Ü§Ú.

3.5. §¥§à§á§å§ã§Ü §â§Ö§Ù§î§Ò§í, §Ö§ã§Ý§Ú §ß§Ö§ä §à§ã§à§Ò§í§ç §à§Ô§à§Ó§à§â§à§Ü, §à§ä§ß§à§ã§Ú§ä§ã§ñ §Ü §ß§Ñ§Ú§Ò§à§Ý§î§ê§Ö§Û §ß§à§â§Þ§Ñ§Ý§î§ß§à§Û §Õ§Ý§Ú§ß§Ö §ã§Ó§Ú§ß§é§Ú§Ó§Ñ§ß§Ú§ñ N, §å§Ü§Ñ§Ù§Ñ§ß§ß§à§Û §Ó §ä§Ñ§Ò§Ý. 4, §Ú§Ý§Ú §Ü§à §Ó§ã§Ö§Û §Õ§Ý§Ú§ß§Ö §â§Ö§Ù§î§Ò§í, §Ö§ã§Ý§Ú §à§ß§Ñ §Þ§Ö§ß§î§ê§Ö §ß§Ñ§Ú§Ò§à§Ý§î§ê§Ö§Û §ß§à§â§Þ§Ñ§Ý§î§ß§à§Û §Õ§Ý§Ú§ß§í §ã§Ó§Ú§ß§é§Ú§Ó§Ñ§ß§Ú§ñ.

3.6. §¥§à§á§å§ã§Ü§Ú §ã§â§Ö§Õ§ß§Ö§Ô§à §Õ§Ú§Ñ§Þ§Ö§ä§â§Ñ §Ó§ß§å§ä§â§Ö§ß§ß§Ö§Û §â§Ö§Ù§î§Ò§í §á§à §ß§Ñ§ã§ä§à§ñ§ë§Ö§Þ§å §ã§ä§Ñ§ß§Õ§Ñ§â§ä§å, §á§â§Ö§Õ§ß§Ñ§Ù§ß§Ñ§é§Ö§ß§ß§à§Û §Õ§Ý§ñ §ã§à§Ö§Õ§Ú§ß§Ö§ß§Ú§ñ §ã §ß§Ñ§â§å§Ø§ß§à§Û §Ü§à§ß§Ú§é§Ö§ã§Ü§à§Û §â§Ö§Ù§î§Ò§à§Û §á§à §¤§°§³§´ 6211¡ª81 §Õ§à§Ý§Ø§ß§í §ã§à§à§ä§Ó§Ö§ä§ã§ä§Ó§à§Ó§Ñ§ä§î §Ü§Ý§Ñ§ã§ã§å §ä§à§é§ß§à§ã§ä§Ú §¡.

§±§â§Ú §ï§ä§à§Þ §Ü§à§ß§ã§ä§â§å§Ü§è§Ú§ñ §Õ§Ö§ä§Ñ§Ý§Ö§Û §ã §Ó§ß§å§ä§â§Ö§ß§ß§Ö§Û §è§Ú§Ý§Ú§ß§Õ§â§Ú§é§Ö§ã§Ü§à§Û §â§Ö§Ù§î§Ò§à§Û §Õ§à§Ý§Ø§ß§Ñ §à§Ò§Ö§ã§á§Ö§é§Ú§Ó§Ñ§ä§î §Ó§Ó§Ú§ß§é§Ú§Ó§Ñ§ß§Ú§Ö §ß§Ñ§â§å§Ø§ß§à§Û §Ü§à§ß§Ú§é§Ö§ã§Ü§à§Û §â§Ö§Ù§î§Ò§í §ß§Ñ §Ô§Ý§å§Ò§Ú§ß§å §ß§Ö §Þ§Ö§ß§Ö§Ö §å§Ü§Ñ§Ù§Ñ§ß§ß§à§Û §Ó §¤§°§³§´ 6211¡ª81.

3.7. §¹§Ú§ã§Ý§à§Ó§í§Ö §Ù§ß§Ñ§é§Ö§ß§Ú§ñ §á§â§Ö§Õ§Ö§Ý§î§ß§í§ç §à§ä§Ü§Ý§à§ß§Ö§ß§Ú§Û §Õ§Ú§Ñ§Þ§Ö§ä§â§à§Ó §ß§Ñ§â§å§Ø§ß§à§Û §Ú §Ó§ß§å§ä§â§Ö§ß§ß§Ö§Û §â§Ö§Ù§î§Ò§í §Õ§à§Ý§Ø§ß§í §ã§à§à§ä§Ó§Ö§ä§ã§ä§Ó§à§Ó§Ñ§ä§î §å§Ü§Ñ§Ù§Ñ§ß§ß§í§Þ §Ó §ä§Ñ§Ò§Ý. 5.

3.8. §±§â§Ö§Õ§Ö§Ý§î§ß§í§Ö §à§ä§Ü§Ý§à§ß§Ö§ß§Ú§ñ §ã§â§Ö§Ù§Ñ §Ó§Ö§â§ê§Ú§ß §Ú §Ó§á§Ñ§Õ§Ú§ß §ß§Ñ§â§å§Ø§ß§à§Û §Ú §Ó§ß§å§ä§â§Ö§ß§ß§Ö§Û §â§Ö§Ù§î§Ò§í §á§â§Ú§Ó§Ö§Õ§Ö§ß§í §Ó §ã§á§â§Ñ§Ó§à§é§ß§à§Þ §á§â§Ú§Ý§à§Ø§Ö§ß§Ú§Ú.

§´§Ñ§Ò§Ý§Ú§è§Ñ 5

§°§Ò§à§Ù§ß§Ñ§é§Ö§ß§Ú§Ö §â§Ñ§Ù§Þ§Ö§â§Ñ §â§Ö§Ù§î§Ò§í

§º§Ñ§Ô §², §Þ§Þ

§¯§Ñ§â§å§Ø§ß§Ñ§ñ §â§Ö§Ù§î§Ò§Ñ

§£§ß§å§ä§â§Ö§ß§ß§ñ§ñ §â§Ö§Ù§î§Ò§Ñ

§¥§Ú§Ñ§Þ§Ö§ä§â§í §â§Ö§Ù§î§Ò§í

d

d2

d1

D

D2

D1

§±§â§Ö§Õ§Ö§Ý§î§ß§í§Ö §à§ä§Ü§Ý§à§ß§Ö§ß§Ú§ñ, §Þ§Ü§Þ

es

ei

es

ei

es

EI

ES

EI

ES

EI

§¬§Ý§Ñ§ã§ã A

§¬§Ý§Ñ§ã§ã §£

§¬§Ý§Ñ§ã§ã A

§¬§Ý§Ñ§ã§ã §£

1/16
1/8

0,907

0
0

-214
-214

0
0

-107
-107

-214
-214

0
0

0
0

+107
+107

+214
+214

0
0

+282
+282

0 0

1/4
3/8

1,337

0
0

-250 -250

0
0

-125 -125

-250
-250

0
0

0
0

+125
+125

+250
+250

0
0

+445
+445

0
0

1/2
5/8
3/4
7/8

1,814

0
0
0
0

-284
-284
-284
-284

0
0
0
0

-142
-142
-142
-142

-284
-284
-284
-284

0
0
0
0

0
0
0
0

+142
+142
+142
+142

+284
+284
+284
+284

0
0
0
0

+541
+541
+541
+541

0
0
0
0

1
1 1/8
1 1/4
1 3/8

2,309

0
0
0
0

-360
-360
-360
-360

0
0
0
0

-180
-180
-180
-180

-360
-360
-360
-360

0
0
0
0

0
0
0
0

+180
+180
+180
+180

+360
+360
+360
+360

0
0
0
0

+640
+640
+640
+640

0
0
0
0

1 1/2
1 3/4
2
2 1/4
2 1/2

0
0
0
0
0

-360
-360
-360
-434
-434

0
0
0
0
0

-180
-180
-180
-217
-217

-360
-360
-360
-434
-434

0
0
0
0
0

0
0
0
0
0

+180
+180
+180
+217
+217

+360
+360
+360
+434
+434

0
0
0
0
0

+640
+640
+640
+640
+640

0
0
0
0
0

2 3/4
3
3 1/4
3 1/2
3 3/4
4
4 1/2
5
5 1/2
6

2,309

0
0
0
0
0
0
0
0
0
0

-434
-434
-434
-434
-434
-434
-434
-434
-434
-434

0
0
0
0
0
0
0
0
0
0

-217
-217
-217
-217
-217
-217
-217
-217
-217
-217

-434
-434
-434
-434
-434
-434
-434
-434
-434
-434

0
0
0
0
0
0
0
0
0
0

0
0
0
0
0
0
0
0
0
0

+217
+217
+217
+217
+217
+217
+217
+217
+217
+217

+434
+434
+434
+434
+434
+434
+434
+434
+434
+434

0
0
0
0
0
0
0
0
0
0

+640
+640
+640
+640
+640
+640
+640
+640
+640
+640

0
0
0
0
0
0
0
0
0
0

§±§â§Ú§Þ§Ö§é§Ñ§ß§Ú§Ö. §¯§Ú§Ø§ß§Ö§Ö §à§ä§Ü§Ý§à§ß§Ö§ß§Ú§Ö §Ó§ß§å§ä§â§Ö§ß§ß§Ö§Ô§à §Õ§Ú§Ñ§Þ§Ö§ä§â§Ñ d1 §Ú §Ó§Ö§â§ç§ß§Ö§Ö §à§ä§Ü§Ý§à§ß§Ö§ß§Ú§Ö §ß§Ñ§â§å§Ø§ß§à§Ô§à §Õ§Ú§Ñ§Þ§Ö§ä§â§Ñ D §ß§Ö §å§ã§ä§Ñ§ß§Ñ§Ó§Ý§Ú§Ó§Ñ§ð§ä§ã§ñ.

4. §°§¢§°§©§¯§¡§¹§¦§¯§ª§Á §²§¦§©§¾§¢§½

4.1. §£ §å§ã§Ý§à§Ó§ß§à§Ö §à§Ò§à§Ù§ß§Ñ§é§Ö§ß§Ú§Ö §ä§â§å§Ò§ß§à§Û §è§Ú§Ý§Ú§ß§Õ§â§Ú§é§Ö§ã§Ü§à§Û §â§Ö§Ù§î§Ò§í §Õ§à§Ý§Ø§ß§í §Ó§ç§à§Õ§Ú§ä§î:

§Ò§å§Ü§Ó§Ñ G, §à§Ò§à§Ù§ß§Ñ§é§Ö§ß§Ú§Ö §â§Ñ§Ù§Þ§Ö§â§Ñ §â§Ö§Ù§î§Ò§í §Ú §Ü§Ý§Ñ§ã§ã §ä§à§é§ß§à§ã§ä§Ú §ã§â§Ö§Õ§ß§Ö§Ô§à §Õ§Ú§Ñ§Þ§Ö§ä§â§Ñ. §µ§ã§Ý§à§Ó§ß§à§Ö §à§Ò§à§Ù§ß§Ñ§é§Ö§ß§Ú§Ö §Õ§Ý§ñ §Ý§Ö§Ó§à§Û §â§Ö§Ù§î§Ò§í §Õ§à§á§à§Ý§ß§ñ§Ö§ä§ã§ñ §Ò§å§Ü§Ó§Ñ§Þ§Ú LH.

§±§â§Ú§Þ§Ö§â§í §å§ã§Ý§à§Ó§ß§à§Ô§à §à§Ò§à§Ù§ß§Ñ§é§Ö§ß§Ú§ñ §â§Ö§Ù§î§Ò§í:

§Ü§Ý§Ñ§ã§ã§Ñ §ä§à§é§ß§à§ã§ä§Ú §¡: G 1 1/2 - A
§Ý§Ö§Ó§à§Û §â§Ö§Ù§î§Ò§í §Ü§Ý§Ñ§ã§ã§Ñ §ä§à§é§ß§à§ã§ä§Ú B: G1 1/2 LH - B

4.2. §¥§Ý§Ú§ß§Ñ §ã§Ó§Ú§ß§é§Ú§Ó§Ñ§ß§Ú§ñ N §Ó §à§Ò§à§Ù§ß§Ñ§é§Ö§ß§Ú§Ú §â§Ö§Ù§î§Ò§í §ß§Ö §å§Ü§Ñ§Ù§í§Ó§Ñ§Ö§ä§ã§ñ.

§¥§Ý§Ú§ß§Ñ §ã§Ó§Ú§ß§é§Ú§Ó§Ñ§ß§Ú§ñ L §å§Ü§Ñ§Ù§í§Ó§Ñ§Ö§ä§ã§ñ §Ó §Þ§Ú§Ý§Ý§Ú§Þ§Ö§ä§â§Ñ§ç.

§±§â§Ú§Þ§Ö§â:G1 1/2 LH - B - 40 (40 - §Õ§Ý§Ú§ß§Ñ §ã§Ó§Ú§ß§é§Ú§Ó§Ñ§ß§Ú§ñ)

4.3. §±§à§ã§Ñ§Õ§Ü§Ñ §à§Ò§à§Ù§ß§Ñ§é§Ñ§Ö§ä§ã§ñ §Õ§â§à§Ò§î§ð, §Ó §é§Ú§ã§Ý§Ú§ä§Ö§Ý§Ö §Ü§à§ä§à§â§à§Û §å§Ü§Ñ§Ù§í§Ó§Ñ§ð§ä §à§Ò§à§Ù§ß§Ñ§é§Ö§ß§Ú§Ö §Ü§Ý§Ñ§ã§ã§Ñ §ä§à§é§ß§à§ã§ä§Ú §Ó§ß§å§ä§â§Ö§ß§ß§Ö§Û §â§Ö§Ù§î§Ò§í, §Ñ §Ó §Ù§ß§Ñ§Þ§Ö§ß§Ñ§ä§Ö§Ý§Ö - §à§Ò§à§Ù§ß§Ñ§é§Ö§ß§Ú§Ö §Ü§Ý§Ñ§ã§ã§Ñ §ä§à§é§ß§à§ã§ä§Ú §ß§Ñ§â§å§Ø§ß§à§Û §â§Ö§Ù§î§Ò§í.

§±§â§Ú§Þ§Ö§â: G1 1/2 ¡ª A/A §Ú§Ý§Ú G1 1/2 LH - A/B

4.4. §³§à§Ö§Õ§Ú§ß§Ö§ß§Ú§Ö §Ó§ß§å§ä§â§Ö§ß§ß§Ö§Û §ä§â§å§Ò§ß§à§Û §è§Ú§Ý§Ú§ß§Õ§â§Ú§é§Ö§ã§Ü§à§Û §â§Ö§Ù§î§Ò§í §Ü§Ý§Ñ§ã§ã§Ñ §ä§à§é§ß§à§ã§ä§Ú §¡ §á§à §ß§Ñ§ã§ä§à§ñ§ë§Ö§Þ§å §ã§ä§Ñ§ß§Õ§Ñ§â§ä§å §ã §ß§Ñ§â§å§Ø§ß§à§Û §ä§â§å§Ò§ß§à§Û-§Ü§à§ß§Ú§é§Ö§ã§Ü§à§Û §â§Ö§Ù§î§Ò§à§Û §á§à §¤§°§³§´ 6211¡ª81 §à§Ò§à§Ù§ß§Ñ§é§Ñ§Ö§ä§ã§ñ §ã§Ý§Ö§Õ§å§ð§ë§Ú§Þ §à§Ò§â§Ñ§Ù§à§Þ:

§±§â§Ú§Þ§Ö§â: G/R 1 1/2 - A

§±§²§ª§­§°§¨§¦§¯§ª§¦

§³§á§â§Ñ§Ó§à§é§ß§à§Ö

§±§²§¦§¥§¦§­§¾§¯§½§¦ §°§´§¬§­§°§¯§¦§¯§ª§Á §³§²§¦§©§¡ §£§¦§²§º§ª§¯ §ª §£§±§¡§¥§ª§¯ §²§¦§©§¾§¢§½

1. §¯§Ñ§ã§ä§à§ñ§ë§Ö§Ö §á§â§Ú§Ý§à§Ø§Ö§ß§Ú§Ö §ã§à§Õ§Ö§â§Ø§Ú§ä §Ú§ß§æ§à§â§Þ§Ñ§è§Ú§ð §à §á§â§Ö§Õ§Ö§Ý§î§ß§í§ç §à§ä§Ü§Ý§à§ß§Ö§ß§Ú§ñ§ç §â§Ñ§Ù§â§Ö§Ù§Ñ §â§Ñ§Ù§Þ§Ö§â§Ñ H/6 §Ó§Ö§â§ê§Ú§ß §Ú §Ó§á§Ñ§Õ§Ú§ß §ß§Ñ§â§å§Ø§ß§à§Û §Ú §Ó§ß§å§ä§â§Ö§ß§ß§Ö§Û §â§Ö§Ù§î§Ò§í, §Ü§à§ä§à§â§í§Ö §ñ§Ó§Ý§ñ§ð§ä§ã§ñ §Ú§ã§ç§à§Õ§ß§í§Þ§Ú §á§â§Ú §á§â§à§Ö§Ü§ä§Ú§â§à§Ó§Ñ§ß§Ú§Ú §â§Ö§Ù§î§Ò§à§à§Ò§â§Ñ§Ù§å§ð§ë§Ö§Ô§à §Ú§ß§ã§ä§â§å§Þ§Ö§ß§ä§Ñ §Ú §ß§Ö §á§à§Õ§Ý§Ö§Ø§Ñ§ä §à§Ò§ñ§Ù§Ñ§ä§Ö§Ý§î§ß§à§Þ§å §Ü§à§ß§ä§â§à§Ý§ð, §Ö§ã§Ý§Ú §ï§ä§à §ß§Ö §å§ã§ä§Ñ§ß§à§Ó§Ý§Ö§ß§à §à§ã§à§Ò§à.

2. §±§â§Ö§Õ§Ö§Ý§î§ß§í§Ö §à§ä§Ü§Ý§à§ß§Ö§ß§Ú§ñ §â§Ñ§Ù§Þ§Ö§â§Ñ - §á§â§Ú§Ó§Ö§Õ§Ö§ß§í §ß§Ñ §é§Ö§â§ä§Ö§Ø§Ö §Ú §Ó §ä§Ñ§Ò§Ý§Ú§è§Ö.

§¹§Ö§â§ä 3

eS¡ª§Ó§Ö§â§ç§ß§Ö§Ö §à§ä§Ü§Ý§à§ß§Ö§ß§Ú§Ö §ã§â§Ö§Ù§Ñ §Ó§Ö§â§ê§Ú§ß§í §Ú §Ó§á§Ñ§Õ§Ú§ß§í §ß§Ñ§â§å§Ø§ß§à§Û §â§Ö§Ù§î§Ò§í;
ES¡ª§Ó§Ö§â§ç§ß§Ö§Ö §à§ä§Ü§Ý§à§ß§Ö§ß§Ú§Ö §ã§â§Ö§Ù§Ñ §Ó§Ö§â§ê§Ú§ß§í §Ú §Ó§á§Ñ§Õ§Ú§ß§í §Ó§ß§å§ä§â§Ö§ß§ß§Ö§Û §â§Ö§Ù§î§Ò§í;
ei¡ª§ß§Ú§Ø§ß§Ö§Ö §à§ä§Ü§Ý§à§ß§Ö§ß§Ú§Ö §ã§â§Ö§Ù§Ñ §Ó§Ö§â§ê§Ú§ß§í §Ú §Ó§á§Ñ§Õ§Ú§ß§í §ß§Ñ§â§å§Ø§ß§à§Û §â§Ö§Ù§î§Ò§í;
EI¡ª§ß§Ú§Ø§ß§Ö§Ö §à§ä§Ü§Ý§à§ß§Ö§ß§Ú§Ö §ã§â§Ö§Ù§Ñ §Ó§Ö§â§ê§Ú§ß§í §Ú §Ó§á§Ñ§Õ§Ú§ß§í §Ó§ß§å§ä§â§Ö§ß§ß§Ö§Û §â§Ö§Ù§î§Ò§í

Tubulação Hidr¨¢ulica

Para ser efetuada a ligação entre tubos e seus acess¨®rios, são utilizados diversos m¨¦todos: roscas, soldas, flanges, etc. Entre esses, a rosca ¨¦ a mais usada, pois apresenta baixo custo e ¨¦ de f¨¢cil execução.
É de importância fundamental levar-se em conta que a rosca utilizada para a ligação de acess¨®rios hidr¨¢ulicos não ¨¦ uma rosca comum, pois al¨¦m de efetuar a ligação mecânica entre os tubos e conexões, ter¨¢ tamb¨¦m que proporcionar um acoplamento estanque, ou seja, sem possibilidade de vazamentos. Isso ¨¦ poss¨ªvel devido ¨¤ conicidade existente nesse tipo de roscaAs roscas para tubos são diferentes das roscas de sujeição para vergalhões, porcas, eixos roscados, etc., pois para essa finalidade são paralelas.
Nas roscas para tubos não se podem admitir falhas, oxidações e filetes perfeitos. Isso ¨¦ facilmente compreens¨ªvel ao analisarmos os l¨ªquidos a serem conduzidos pelos tubos, que, em muitos casos, são extremamente vol¨¢teis ou inflam¨¢veis.¡¡Assim, os acoplamentos devem ser encarados com responsabilidade, tendo os cuidados necess¨¢rios para a sua instalação, que assim como as exig¨ºncias t¨¦cnicas, devem ser rigorosamente obedecidos.A Associação Brasileira de Normas T¨¦cnicas (ABNT) adotou a rosca Britânica cuja denominação ¨¦ BSPT. Atualmente, denomina-se apenas BSP.
A norma NBR 6414 exige que a rosca BSP dever¨¢ ser utilizada em linhas de tubo cuja pressão m¨¢xima seja de 25kgf/cm ou 360 libras/pol, em temperaturas de 120ºC .
As mat¨¦rias desta parte de dicas de tubulação hidr¨¢ulica foram elaboradas e cedidas pela: SAMA TARRAXAS e COMPONENTES.

Origem Norma
Internacional   ISO 7/1
Brasil NBR-6414
Inglaterra BS-21
Alemanha DIN-2999
Panamericana COPANT 13:1-013
JAPÃO JIS-B-0203
It¨¢lia UNI-5191

ntagem das conexões BSP / tubo rosqueado

Acoplamento tubo / conexão com rosca NPT
Diferença entre rosca BSP e NPT
Roscas paralelas
Roscas para vergalhões
Tubos
Vibrações
Incrustações
Golpe de ar¨ªete
Vedantes mais usados
Chave para tubos
Óleos para corte de metais
Considerações importantes

METRIC THREADS  (IS 4218)
Screw Plug gauges Class 6H. Screw Ring gauges Class 6g.  

UNF, UNC, UNEF (ANSI/ASME B 1.2)
Screw Plug gauges Class 2B. Screw Ring & Caliper gauges Class 2A

BSW, BSF, WHITWORTH (BS 84, BS 919 Part 2)
Screw Plug gauges Medium/General. Screw Ring & Caliper gauges up to 3/4" Medium U/P. Screw Ring & Caliper gauges over 3/4" Medium/General.

BSP(G) (IS 2643)
Screw Plug gauges Class A (medium fit). Screw Ring & Caliper gauges Class A or Class B (free fit). Unless otherwise stated Class A will be supplied.  

BA (BS 93, BS 919 Part 2)
Screw Plug gauges Normal. Screw Ring & Caliper gauges Normal U/P.

BSPT (R/Rc) BS 21
Screw Plug & Ring gauges System B. Min/Max steps.

NPT/NPTF (ANSI)
Screw Plug & Ring gauges L1 Step Limit.
Screw plug gauges are described by their style. Standard double-ended Go/NoGo screw thread plug gauge is Style ¡®E¡¯. Other styles are:-
Style ¡®A¡¯  Double ended setting plug for caliper gauges.
Style ¡®D¡¯  Single ended effective NoGo plug gauge.
Style ¡®F¡¯  Go screw plug gauge and NoGo plain core plug gauge.
Style ¡®G¡¯  Go screw plug gauge and Go plain core plug gauge.
Style ¡®H¡¯  NoGo screw plug gauge and NoGo plain core gauge.







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