Flange assembly with bolt elongation measurement, Mechanical Engineering

Assignment Help:

Q. Flange Assembly with Bolt Elongation Measurement?

Bolt elongation measurement may be used, with COLT engineering approval, at flanges where Hydraulic Bolt Tensioners are impractical.

Ideally, the elongation of each bolt on each joint should be measured to assure uniform bolt tension. For the finished joint, bolt elongation should correspond to recommended stress in the bolt +/- 10%. The effective length, L0 is determined by measuring the distance from the centers of the nuts. This is the same as the distance from inside nut faces plus one nut height.

Center punch end faces of bolts on which elongation will be measured. It is suggested that every fourth bolt be used as a reference bolt.

Install bolts and gasket and make initial reference measurements.

Determine the proper elongation values from the Flange Closure Sheet, Form ES-PPG-9011. Tighten bolts using a torque wrench, making elongation measurements after each "criss-cross" round has been completed. (Each round consists of 30% elongation, 70% elongation and full elongation).


Related Discussions:- Flange assembly with bolt elongation measurement

Electric resistance welding, ELECTRIC RESISTANCE WELDING Electric resis...

ELECTRIC RESISTANCE WELDING Electric resistance welding is an important and widely applied non fusion welding process. This write up covers the basic principles of various resi

Pendulum pump mechanism, describe about pendulum pump mechanism and dia...

describe about pendulum pump mechanism and diagram

Show the periodic functions, (a) Show following complex numbers in Rectangu...

(a) Show following complex numbers in Rectangular forms : (i) 5e 0.927j (ii) 10e 4.068j (b) Show the periodic functions by Fourier series (Harmonic series).

Pneumatic circuit design, 3. Design and draw a circuit using the cascade sy...

3. Design and draw a circuit using the cascade system to operate two cylinders (A and B) which, on the operation of a start valve, produces the sequence A – B + B – A+. The cylinde

What are the advantages of compound compression, What are the advantages of...

What are the advantages of compound compression with intercooler over single stage compression? Explain with the help of schematic and P-h diagrams, the working of a two stage c

Calculate change of entropy of universe, Calculate change of entropy of uni...

Calculate change of entropy of universe: 5Kg of ice at 10 0 C is kept in atmosphere that is at 30 0 C. Calculate change of entropy of universe when it melts and comes i

What are the uses of windmill, Windmills were traditionally used for proces...

Windmills were traditionally used for processing grains, later they started to be used for electricity production as well. Windmills can also be used to pump water.

Example of equilibrium of body on the rough inclined, Example of Equilibriu...

Example of Equilibrium of body on the rough inclined: Magnitude of minimum force ' p ' that is required to move the body up the plane. At the time when ' p ' is acted with the

Thermal properties-ceramics-refractory and abrasive material, Thermal Prope...

Thermal Properties Each solid expand on heating and convention on cooling. The thermal expansion of solids is due to basic structure whether atoms occupy mean position on a fi

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd