Rumus Fabrikasi

Rumus Fabrikasi A. ELBOW 1. 2. 3. 4.

90 :daun: 2 = A Inchi x 1,5 x 2,54 = B Keliling : 6,28 = C ( tan ( A )x ( B + ( cos ( 00 ) x C )) + 0,5 =

B. Baling-baling 1. Akar pangkat ( A2 + B2 ) = C 2. ( C- ( A – B )) : 2 = D 3. Shift cos ( A : C ) = X 4. 90 – X = Y 5. Tan ( Y x D ) = E 6. Akar pangkat ( D2 + E2 ) = F 7. ( F x 2 x 3,14 ) : 360 x Y = * Rumus lengkungan kecil 8. ( tan ( Y ) x ( A – F )) + B = ? x 2 x 3,14 : 360 = ? x X = ? 9. Keliling : daun = ...... 10.Akar pangkat (A2 + ...... ) = M * Rumus lengkungan besar 11.Shift cos ( A : M ) = ? 11 ? 12.( tan ( Y ) x ( A – F )) ? + B = M 13.X : 8 = ? 13 ? 14.Y : 6 = ? 14 ? * Rumus 15.( cos ( 90 – ( ? 13 ? x 1 sampai 8 ))) x M = * Rumus besar pemindahan 16.( A – F ) + ( cos ( ? 14 ? x 5 ) x F =* Rumus kecil 17.( hasil besar atau kecil x ( tan ( ? 11 ? =* Rumus penyederhanaan

C. Tee

1. ( A – akar pangkat (A2 – ( cos ( 00 – 30 – 60 – 90 ) x A ) 2 ) * Rumus normal 2. Keliling kecil yang sudah diisolasi ( X 1,5) 3. B – akar pangkat ( B2 – ( cos ( 00 – 45 – 60 – 90 ) x A ) 2 ) * Rumus Wayy R

D. Excentrick ( moncong babi )

1. Akar pangkat (( akar pangkat ((( RB + ( cos ( 00 ) x RB )) – ( RK + ( cos ( 00 ))) 2 + ( sin ( 00) x RK )) 2 )) 2 + T2

Dimensions Butt Weld Elbows 45°-90° LR & 3D according to ASME B16.9

NPS

O.D. D

1/2 3/4 1 1¼ 1½ 2 2½ 3 3½

21.3 26.7 33.4 42.2 48.3 60.3 73 88.9 101.6

NPS

O.D. D

90 degrees Long Radius Center-to-End A 38 38 38 48 57 76 95 114 133 90 degrees Long Radius Center-to-End A

45 degrees Long Radius Center-to-End B 16 19 22 25 29 35 44 51 57 45 degrees Long Radius Center-to-End B

90 degrees 3D Center-to-End A ... 57 76 95 114 152 190 229 267 90 degrees 3D Center-to-End A

45 degrees 3D Center-to-End B ... 24 31 39 47 63 79 95 111 45 degrees 3D Center-to-End B

NPS

O.D. D

4 5 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48

114.3 141.3 168.3 219.1 273 323.8 355.6 406.4 457 508 559 610 660 711 762 813 864 914 965 1016 1067 1118 1168 1219

NPS

O.D. D

90 degrees Long Radius Center-to-End A 152 190 229 305 381 457 533 610 686 762 838 914 991 1067 1143 1219 1295 1372 1448 1524 1600 1676 1753 1829 90 degrees Long Radius Center-to-End A

45 degrees Long Radius Center-to-End B 64 79 95 127 159 190 222 254 286 318 343 381 406 438 470 502 533 565 600 632 660 695 727 759 45 degrees Long Radius Center-to-End B

90 degrees 3D Center-to-End A 305 381 457 610 762 914 1067 1219 1372 1524 1676 1829 1981 2134 2286 2438 2591 2743 2896 3048 3200 3353 3505 3658 90 degrees 3D Center-to-End A

45 degrees 3D Center-to-End B 127 157 189 252 316 378 441 505 568 632 694 757 821 883 964 1010 1073 1135 1200 1264 1326 1389 1453 1516 45 degrees 3D Center-to-End B

Dimensions are in millimeters unless otherwise indicated. Wall thickness (t) must be specified by customer. Dimensional Tolerances of Butt Weld Elbows - 45° and 90° - LR and 3D - ASME B16.9 Nominal Pipe Size Outside Diameter at Bevel (D)

1/2 to 2½ 3 to 3½ 4 5 to 8 10 to 18 20 to 24 26 to 30 32 to 48 + 1.6 + 2.4 + 4 + 6.4 + 6.4 1.6 1.6 - 0.8 - 1.6 - 3.2 - 4.8 - 4.8