Concentric bend formula

Per. Roarks Formulas for Stress and Strain Formulas for flat plates with straight boundaries and constant thickness. Flat Rectangular Uniform over entire plate plus uniform over entire plate plus uniform tension P lb=linear in applied to all edges Stress and deflection Equation and Calculator. Per.

Concentric bend formula. About this app. The flat pattern of a cone is an application that calculates the parameters for a development of a Full Cone, Half Cone , Truncated Cone , Concentric Cone, Frustum Cone, Eccentric Cone. The cone is a widely used shape in the manufacture of transitions in ventilation, pipelines, pressure vessels, heat exchangers and tanks.

All dimensions are to be rounded to .xxx. Enter consistent dimensions (i.e. if you enter an inside dimension for one input, enter an inside dimension for your other inputs. Do not mix inside, outside, and centerline dimensions). **Albina takes no responsibility for the calculated results. The developed elevation view shows the component in a ...

The basic equations of deflection, slope, and moments for a thin, flat, circular plate subjected to a uniform load on a concentric circle were derived for four generalized cases. From these generalized cases, six simplified cases were deduced. The four generalized cases have the uniform load acting on a concentric circle of the plate between the inner and outer …0.0387 x S x (D-S) x R / 1000. S For Wall thickness. D For O.D. of the Elbow. R For Center Line Radius (Height) *All units are in millimeter. The weight of 45 Degree Elbow Long Radius is half of 90 Deg while the weight of 180D is twice of 90D. The weight of 90 Degree Elbow Short Radius is two thirds of 90 Deg Long Radius Elbow.Woodinville Wonderland - Let there be lights!The stress in a bending beam can be expressed as. σ = y M / I (1d) where. σ = stress (Pa (N/m2), N/mm2, psi) y = distance to point from neutral axis (m, mm, in) M = bending moment (Nm, lb in) I = moment of Inertia (m4, mm4, in4) The maximum moment in a cantilever beam is at the fixed point and the maximum stress can be calculated by …Are you looking for formula's? A torus (=360 deg. elbow) has volume 1/2 x pi^2 x D^2 x R i.e a 90 degree elbow has volume 1/4 x 1/2 x pi^2 x D^2 x R and so onJun 6, 2023 · 8. Simply supported beam – 2 Point loads – unequally spaced (formulas) 9. Simply supported beam – One side triangular line load (formulas) 10. Simply supported beam – Double Triangular line load (formulas) Now, before we get started, always remember that the unit of the bending moment is Kilonewton meter [ k N m] and Kilonewton [ k N ...

Concentric Bending Chart. Enter radius of bend in blue cell 65(a) Click left or right or enter key. Calculates the developed length of bend, and the distance between segment bends for desired degrees of bends. Bending Concentric bends: Divide developed length into the desired number of bends with the distance between bends marked on conduitCONDUIT Bend Mark Stub A Length B Cut Length Travel Deduct Gain B to B 3/4" IMC 6.375 15.500 35.500 47.500 9.000 9.125 3.500 5.625 •Select the conduit size and type (Tan cell drop down box) in the bending program. •Insert the data from fact sheet into the appropriate green column in the bending program.September 16, 2023 fitterkipurijankari. concentric reducer formula pdf 10 Inch Pipe OD = 273 mm 6 inch Pipe. PIPE FITTER BOOK.As an example, to bend 3/4” EMT conduit have a free end height of 8.5”, the table indicates to subtract 6” from the 8.5” which leave 2.5” from the end to bend up to make the mark. Tip: Advanced benders can lay a tape measure next to the conduit and perform the bending operations if the bend does not call for high degree of accuracy. 4. Pipe reducers are vital components in piping systems. At its core, a pipe reducer is a type of pipe fitting designed to connect two pipes with different diameters. In other words, it enables the transition from a larger pipe size to a smaller one or vice versa. In this article, we’ll introduce pipe reducers, explaining their fundamental role ...Dec 19, 2018 · 360max said: They look like rolling offsets. A concentric bend keeps the same center point. You can roll an offset and keep it concentric at the same time. Not all the bends are concentric, but if you look at a number of the photos you can see that the same center point is kept through each of the rolling offsets. As an example, to bend 3/4” EMT conduit have a free end height of 8.5”, the table indicates to subtract 6” from the 8.5” which leave 2.5” from the end to bend up to make the mark. Tip: Advanced benders can lay a tape measure next to the conduit and perform the bending operations if the bend does not call for high degree of accuracy. 4.

A back-to-back bend produces a “U” shape in a single length of conduit. Use the same technique for a conduit run across the floor or ceiling which turns up or down a wall. Example: Step 1. After the first 90° bend has been made, measure to the point where the back of the second bend is to be, “B”. Step 2.CORRECTED MATHEMATICAL FORMULA . FOR HYDRAULIC TUBE BENDING . The following formula should be used to determine the start point for each required bend. The example will be for a Double Bevel Bend . L1 = 26 25 degree angle . L2 = 15 65 degree angle . L3 = 39 65 degree angle . L4 = 15 25 degree angle . L5 = 26 . Bend #1 Start Point: A = Total cross-sectional area of concentric neutral, tape shield, or phase conductor (circular mils) I = Fault current (amperes) t = Duration of fault (seconds) k = Constant for conductor or shield material with fixed initial and final temperatures The k value in the above equation can be obtained in the following table:The arc is the measured distance along the inside radius, the distance from the beginning to end of the radius, which may or may not be 90 degrees of bend angle. The following formula can be used to develop that value, where A equals the number of bends and Ir equals the insideradius. Arc length = 2 (pi) x Ir x [ (180 - A)/360] Example: 3.000 ...Distance between bends STEP 5: Rnd the distance between SL~n ~he bender arrow with each 4" 4500" 4.334" o Protect the end of the conduit. bends and mark the condUlt. mark on each conduit and bend. MEASURING THE CONDUIT Radlus 2 x Multlpller = Dlstance each to the degree of angle.

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September 16, 2023 fitterkipurijankari. concentric reducer formula pdf 10 Inch Pipe OD = 273 mm 6 inch Pipe. PIPE FITTER BOOK.The governing differential equation (biharmonic equation) for the elastic deflection of a plate in polar coordinates is given by equation (2); ... The boundary conditions are at the support, the deflection is zero, and the bending moment is zero. w = 0; M x = M y = 0. The equation of the deflected surface is given by; w = C 3 r 2 + C 4 + qr 2 …Conduit Bending 26204-14 Laying Out Segment Bends • To lay out a segment bend, multiply the radius by 1.57 to determine the developed length. • Locate the center of the required bend. Once the center is found, it is easy to locate the other bend marks. • Use an odd number of shots so there are an equal Measure from the end of the conduit to the wall – perhaps it's 25 ½". The photo below of the front side of the bender head shows that for ¾" conduit the deduct is 6"; deduct 6" from the 25 ½" measurement leaving 19 ½". Place a mark on a new piece of conduit 19 ½" from the end. A conduit-bending guide with instructions on how to bend EMT ...

May 19, 2011 · You actually "multiply" the radius by 1.57 to get D.L. I also like to use 2 2.5 deg bends at the start and end. For small EMT conduit, where online would I find some technique description for bending a bunch of 90's in the same plane (i.e., mulitple adjacent pipes all with a 90 degree bend at same place. Back-to-Back Bend 90° Bend “Dog Leg” Bend or “Kick” Leg Length Offsets Rise or “Stub-ups” Segment Bend Concentric Bends Hickey bends are a series of segment bends (not to exceed 10° per bend) for sharper than standard code radius bends. Bending success with a hickey is directly proportionate to the operator’s bending skill.Beam with Fixed Ends Under a Concentrated Load. In this calculation, a beam with both ends fixed, of length L with a moment of inertia of cross section I y is considered. The beam is subjected to a concentrated load F located at a distance a from the left end.. As a result of calculations, the bending moment M at point X is determined. The bending moment …The shear rate of flow in capillaries, tubes, and pipes is calculated using the Hagen/Poiseuille formula: With a discharged volume of V = 1 cm 3 and a flow time of t = 1 s, the volume flow rate is V/t = 10 -6 m 3 /s. Based on a tube outlet with a diameter d = 6 mm or radius R = 3 • 10-3 m and circle constant pi = 3.14, the shear rate is:PawEng, LLC – Apps for Electriciansπ (2r) or πD. π (pi) = 3.1416. For example, if your die creates a 2.2” radius, and you need to create a 35° bend, your calculations would look something like this: to calculate one degree of ...Feb 8, 2008 · 5) Place conduit in appropriate bender (hydraulic multi shot or Chicago type) and bend 5 degrees at each mark. After 18 shots at 5 degrees each you will have 90 with a 16? radius. This is a simple example and of course doing the real thing requires the proper know how and tools. This method also allows bending concentric bends. Analysis of the buckling of eccentrically loaded columns begins just as that of classical Euler Buckling Theory, with the beam bending equation. EI y′′ =M E I y ″ = M. However, this time the bending moment is slightly more complex. It is now M =−P (y+e) M = − P ( y + e), where P P is the compressive load, y y is the column deflection ...QuickBend is an advanced conduit bending calculator that was created to be fast and accurate while being visually appealing, innovative, and intuitive. Offering you the most accurate measurements using the centerline radius algorithm based upon the bender that you're using. Easily select between different types of benders and choose the size of ...The bending moment varies over the height of the cross section according to the flexure formula below: where M is the bending moment at the location of interest along the beam's length, I c is the centroidal moment of inertia of the beam's cross section, and y is the distance from the beam's neutral axis to the point of interest along the ... Mar 5, 2021 · 6.2: Deflections of Circular Plates. The governing equation ( 6.1.9) still holds but the Laplace operator ∇ 2 should now be defined in the polar coordinate system ( r, θ) In the circular plate subjected to axi-symmetric loading p = p ( r), the third term in Equation 6.2.1 vanishes and the Laplace operator can be put in the form.

As an example, to bend 3/4” EMT conduit have a free end height of 8.5”, the table indicates to subtract 6” from the 8.5” which leave 2.5” from the end to bend up to make the mark. Tip: Advanced benders can lay a tape measure next to the conduit and perform the bending operations if the bend does not call for high degree of accuracy. 4.

2.3.1.11 Bending Failure of Concentrically Loaded Short Columns. Several formulas are available to treat short columns. These have no theoretical justification as did the Euler formula, but fit column data to a degree of accuracy depending upon the material and column parameters. Identify the methods for hand bending and installing conduit. 2. Determine conduit bends. ... • A 90° bend is ¼ of a circle. • Concentric bends are made to 90° but each has a different ... the offset formula [12" + center-to-center spacing x TAN (½ offset angle)] and then added to the starting pointAfter the first 90° bend has been made, measure to the point where the back of the second bend is to be, “B”. Step 2. Measure and mark your conduit the same distance, mark “B”. Step 3. Align the mark on the conduit with the Star-Point on the bender and bend to 90°. Star-Point on bender must be referenced for accurate bends.Are you looking for formula's? A torus (=360 deg. elbow) has volume 1/2 x pi^2 x D^2 x R i.e a 90 degree elbow has volume ... I ended up using 1/4 the volume of a torus for the 90's and assumed the wall thinckess was uniform around the bend, which of course it is not. For the reducers I used the volume of a truncated cone. Close enough …Study with Quizlet and memorize flashcards containing terms like Minimal bending radius for 3 inch rigid conduit, Minimum bending radius for 1/2 inch rigid conduit, Maximum …the out-of-plane rotations. The bending strain tensor (the curvature change tensor for the plate mid-surface) is Kw , . From this point on we adopt the following notation. The displacements of the mid-surface are denoted by uxx11 2(, ), uxx11 2(, ), wx x(, )12. The mid-surface strains are ,, ,, 11 22Time Stamps of All Chapters so you may find the important parts of the video.Chapter 1 - The Formula4:09Chapter 2 - The Take up for Large Radius 90's5:42Chap... Using the formula above, you would calculate the bend diameter as follows: Bend Diameter = (10 * 12) / 45. This would give you a Bend Diameter of 26.667 inches. Another way to calculate a segment bend is to use the following formula: Bend …

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The Basics of Pipe and Tube Bending. Pipe and tube bending is a fabrication method used to form metal tubes by bending them into desired angles and shapes. Bending pipes and tubes allows for the fabrication of complex structures and piping systems that are integral to everything from musical instruments and handrails to …CONDUIT Bend Mark Stub A Length B Cut Length Travel Deduct Gain B to B 3/4" IMC 6.375 15.500 35.500 47.500 9.000 9.125 3.500 5.625 •Select the conduit size and type (Tan cell drop down box) in the bending program. •Insert the data from fact sheet into the appropriate green column in the bending program.There is a formula to figure out how much space to put between them. It goes as follows; 1.57 • radius ÷ #of bends. So 1.57 x 12 ÷ 30=.628. Therefore if you mark out a piece of pipe with 30 marks that are spaced 5/8" apart and bend on those marks to 3° each you will achieve a 90° bend with a 12 "radius. Share.Butt Weld 180 deg Return Bends ; Threaded 180 deg Return Bends . Plugs . 304 Stainless Steel Plugs ; 316 Stainless Steel Plugs ; Carbon Steel Plugs ; Galvanized Plugs ... ¾ x ½ inch 316 Stainless Steel schedule 80 weld on concentric reducer. $94.50. Add to cart Add to compare list. ¾ x ½ inch carbon Steel schedule 40 concentric reducer. ¾ ...2 O. D.: Outside diameter of a pipe. Offset: Two identical bends placed in a conduit to change direction or elevation of the pipe run. Radius: The relative size of the bent portion of a pipe. Reference Point: A mark used to locate the edge of an obstruction for bending saddles. Shrink: The amount a conduit reduces in total length after an offset is bent. ...take the effect of the bending moment increasing because the beam deflects. This is called the P-Δ (P-delta) effect. Limit Criteria Methods 1) + ≤1.0 b b a a F f F f interaction formula (bending in one direction) 2) + + ≤1.0 by by bx bx a a F f F f F f interaction formula (biaxial bending) 3) () ≤1.0 × + b b a a F f Magnification factor ... Calculate MO / Rise Radius: Chord: Total Mid-Ordinate (MO) / Rise is: 0.000 in. Calculate Radius w. Chord & Rise Chord: Rise / Mid-Ordinate (MO): Total Radius is: 0.000 in. Calculate Radius w. Arc & Degree Arc Length: …Approximate weight of a butt welding reducer can be calculated based on its two outside diameters, length and wall thickness. Please note that actual weight of a reducer from a particular manufacturer may vary depending on manufacturing process. Dimensional standards like ASME B16.9 do not provide weights of butt welding fittings.Figure 4 – Bending Moment Diagram from spSlab From the bending moment diagram, the factored unbalanced moment used for shear transfer, M unb, for exterior and interior columns are: At exterior supporting column, the unbalanced moment, M 628.56 358.59 269.97 kN-m f > @ At interior supporting column, the unbalanced moment, M 835.54 …Read More. Piping formula. fitter training 07/05/2022 2 Comments 3 piece 90 degree elbow formula, 4 piece 90 degree elbow formula, 45 degree elbow cutting formula, 90 degree miter bend formula, miter cut elbow formula, miter cut elbow formula 2 … ….

06-Jan-2020 ... We then fit the effective flexural rigidity EI to the small deflection data using the Euler-. Bernoulli tip deflection formula. w = PL3. 3EI. (1).I will show you how to Bend Professional looking Concentric bends Quick and Simple. I go through the whole process step by step. Also i will post another cou... L = O × A. Use the offset calculation as the distance between the bend marks described in Bend Layout, page 9 . Offset Bend. Angle (E). Offset Bend. Allowance ( ...Back-to-Back Bend 90° Bend “Dog Leg” Bend or “Kick” Leg Length Offsets Rise or “Stub-ups” Segment Bend Concentric Bends Hickey bends are a series of segment bends (not to exceed 10° per bend) for sharper than standard code radius bends. Bending success with a hickey is directly proportionate to the operator’s bending skill. Flat Plate Simply Supported Deflection and Bending Stress Calculator. Beam Deflection and Stress Formula and Calculators ... Uniform over small concentric circle of ro, qo (N/mm 2) = psi Load application radius, ro (mm) ... Formulas for Stress and Strain, 5th eddition, page 386 Update Reset Print. Link to this Webpage: Copy Text to clipboard.Concentric Reducer Weight Calculation Formula. The steel pipe reducer weight formula is 0.02466 * S < (D+d)/2 – S> * H / 1000. D = Large end diameter in mm. d = Small end diameter in mm. S = Large end Thickness in mm. H = Height from end to end. If we want to calculate the weight by formula, we need to know above 4 factors.How is concentric bend measured? The length of conduit required to produce the bend is called the developed length. The developed length (DL) is equal to the …The equation for pipe diameter is the square root of 4 times the flow rate divided by pi times velocity. For example, given a flow rate of 1,000 inches per second and a velocity of 40 cubic inches per second, the diameter would be the square root of 1000 times 4 divided by 3.14 times 40 or 5.64 inches.Back-to-Back Bend 90° Bend “Dog Leg” Bend or “Kick” Leg Length Offsets Rise or “Stub-ups” Segment Bend Concentric Bends Hickey bends are a series of segment bends (not to exceed 10° per bend) for sharper than standard code radius bends. Bending success with a hickey is directly proportionate to the operator’s bending skill. Concentric bend formula, A = Total cross-sectional area of concentric neutral, tape shield, or phase conductor (circular mils) I = Fault current (amperes) t = Duration of fault (seconds) k = Constant for conductor or shield material with fixed initial and final temperatures The k value in the above equation can be obtained in the following table: , A back-to-back bend produces a “U” shape in a single length of conduit. Use the same technique for a conduit run across the floor or ceiling which turns up or down a wall. Example: Step 1. After the first 90° bend has been made, measure to the point where the back of the second bend is to be, “B”. Step 2. , Eccentric load is basically defined as the load whose line of action does not pass through the axis of the column, but also line of action of load passes through a point away from the axis of the column. In simple, we can say that when a load will act away from the axis of the column then that load will be termed as eccentric load., L littlebro · #3 · May 19, 2011 If you're not running too many and your spacing is right, you can use the next size bender. I've run 3 1/2" using 1/2" for the first, 3/4" for the second and 1" for the third. The 1" smashed the pipe a little the first time, so maybe I just got lucky!, Hand Benders. Every electrician should have their own set of hand benders, to include at a minimum a bender for ½" EMT, one for ¾" EMT (the ¾" will also bend ½" rigid pipe). If possible, a bender for 1" EMT (will bend ¾" rigid as well) is also recommended even though many shops will provide this. , Frames & Rings. Table 5-6 gives formulas for the bending moments, tensions, shears, and deflections of closed circular rings and circular arches of uniform cross section loaded in various ways. Cases 1 through 21 treat closed rings, and cases 21 through 24 treat arches. By superposition, the formulas given by Table 5-6 can be combined to cover ..., Structural Beam Deflection, Stress Formula and Calculator: The follow web pages contain engineering design calculators that will determine the amount of deflection and stress a beam of known cross section geometry will deflect under the specified load and distribution. Please note that SOME of these calculators use the section modulus of the ..., , Location. Ohio. Jul 16, 2015. #6. To make parallel runs, advance/retard each bend by. tan (a/2)*s . where "a" is the bend angle and "s" is spacing (centerline to centerline). This assumes the stub end is at a right angle to the preceding run (aligned couplings). Adjust accordingly if not., 2.3.1.11 Bending Failure of Concentrically Loaded Short Columns. Several formulas are available to treat short columns. These have no theoretical justification as did the Euler formula, but fit column data to a degree of accuracy depending upon the material and column parameters., 1. To draw concentric circles use the drawOval (x,y,width,height) to draw an cirlce starting from the (x,y) co-ordinate of equal height and width. 2. Increment/decrement the …, Back-to-Back Bend 90° Bend “Dog Leg” Bend or “Kick” Leg Length Offsets Rise or “Stub-ups” Segment Bend Concentric Bends Hickey bends are a series of segment bends (not to exceed 10° per bend) for sharper than standard code radius bends. Bending success with a hickey is directly proportionate to the operator’s bending skill., Relation between the radius of curvature, R, beam curvature, κ , and the strains within a beam subjected to a bending moment. The bending moment can thus be expressed as. M = ∫ y(EκydA) = κE ∫y2dA (7.3.2) (7.3.2) M = ∫ y ( E κ y d A) = κ E ∫ y 2 d A. This can be presented more compactly by defining I (the second moment of area , or ..., For a metal containing only one type of charge carrier (electrons), the Hall voltage (V H) can be calculated as a factor of current (I), magnetic field (B), thickness of the conductor plate (t), and charge carrier density (n) of the carrier electrons: VH = − IB net. In this formula, e represents the elementary charge., 162 10K views 2 years ago Conduit Bending I will show you how to Bend Professional looking Concentric bends Quick and Simple. I go through the whole process step by step. Also i will post..., Relation between the radius of curvature, R, beam curvature, κ , and the strains within a beam subjected to a bending moment. The bending moment can thus be expressed as. M = ∫ y(EκydA) = κE ∫y2dA (7.3.2) (7.3.2) M = ∫ y ( E κ y d A) = κ E ∫ y 2 d A. This can be presented more compactly by defining I (the second moment of area , or ..., Jun 17, 2019 · Conduit aligned for 22½° bend. Three-bend saddles: Make the center 45° band first. Then make 22½° bends on each leg (Fig. 1). Don’t attempt a three-bend saddle if the object measures 6 in. or more in diameter. Larger diameters call for a four-bend saddle (Fig. 2). Fig. 2. Here’s an example of a four-bend saddle routed around an ... , Hand Benders. Every electrician should have their own set of hand benders, to include at a minimum a bender for ½" EMT, one for ¾" EMT (the ¾" will also bend ½" rigid pipe). If possible, a bender for 1" EMT (will bend ¾" rigid as well) is also recommended even though many shops will provide this. , An old timer showed me a trick for doing perfect concentric bends: After making the first bend, mark a wide elastic suspender in 9 equal increments along the bend, then simply stretch it out a little more for each concentric bend, and bend 10 degrees on each mark. Do the math, a 90 degree bend is "3.14 times radius divided by two" in length., Answer: There is no real formula, but it can be calculated with a fair degree of precision. Multiply the radius of the bend you want to make by 6.28, then by degrees, bend and divide by 360. Divide once more by two, measure from the center of the pipe that far then set that mark at the front edge of the bending shoe., It is 1 1/4" PVC conduit. Thanks to all for your answers! The radius of the bends does not enter into the standard pulling tension or force calculations. The radius is used in calculating the sidewall pressure that is put on the insulation as the conductors are pulled around a bend., Time Stamps of All Chapters so you may find the important parts of the video.Chapter 1 - The Formula4:09Chapter 2 - The Take up for Large Radius 90's5:42Chap..., Make center bend mark at this distance. 3. Using distance from center mark values in Saddle Bend table, mark return bend lines on both sides of center bend mark. 4. Bend first bend using center bend line. Spin conduit 180° and perform first return bend using return bend line. Bend second return bend line in same direction. Offset Bend Steps 1., The definition, applicability, and calculation of flexibil- ity factors for reducers subjected to bending and torsional mo- ments are also discussed. The ..., of shoe clamp and make second bend. Offset Beam Front Edge of Clamp Min. 2˝ Box Mark #1 Mark #2 M See Table A 52 Offset Bending Table A To locate distance between centers of offset bending marks other than listed in Table A, use the following multipliers: 15° Bend—3.9; 30° Bend—2.0; 45 Bend—1.4. 15° Bend 30° Bend 45° Bend Offset ... , For a metal containing only one type of charge carrier (electrons), the Hall voltage (V H) can be calculated as a factor of current (I), magnetic field (B), thickness of the conductor plate (t), and charge carrier density (n) of the carrier electrons: VH = − IB net. In this formula, e represents the elementary charge., Permanent Redirect., Oct 29, 2022 · QuickBend is an advanced conduit bending calculator that was created to be fast and accurate while being visually appealing, innovative, and intuitive. Offering you the most accurate measurements using the centerline radius algorithm based upon the bender that you're using. Easily select between different types of benders and choose the size of ... , Weebly, Relation between the radius of curvature, R, beam curvature, κ , and the strains within a beam subjected to a bending moment. The bending moment can thus be expressed as. M = ∫ y(EκydA) = κE ∫y2dA (7.3.2) (7.3.2) M = ∫ y ( E κ y d A) = κ E ∫ y 2 d A. This can be presented more compactly by defining I (the second moment of area , or ..., The quality and accuracy of CMRP's work is outstanding". The curved steel cone calculator from Chicago Metal Rolled Products makes it easy to find the precise curved steel cone dimensions you need., A back-to-back bend produces a “U” shape in a single length of conduit. Use the same technique for a conduit run across the floor or ceiling which turns up or down a wall. Example: Step 1. After the first 90° bend has been made, measure to the point where the back of the second bend is to be, “B”. Step 2. , Tangent Calculation. Tan (d) = A/B. A = tan (d) x B. B = A/tan (d) View information about bending conduit using a bender and the deducts and multipliers charts. How to Pull Wire Through Condu it. Using just a few mathematical formulas, you can calculate a bend of nearly any angle for pipe or conduit. An inexpensive scientific calculator and an ...