Alignment of piping flanges, Mechanical Engineering

Assignment Help:

Q. Alignment of piping flanges?

Alignment of piping flanges shall be in accordance with ASME B16.5. This code specifies that:

• Flange centerline misalignment must be within 1/8 in (3 mm) maximum offset.

• Flange planar misalignment must be parallel within 1/16 in per foot (5 mm per meter) of diameter.

• Flange torsional misalignment must be within 1/8 in (3 mm) maximum rotational offset.

Install the gasket on the gasket seating surface and bring the mating flange in contact with the gasket.

Care shall be taken to insure the proper seating and centering of the gasket. Note that spiral wound and double jacketed gaskets are designed for one-time installation and shall not be reused.

Holding gaskets in place often presents a problem, and pipe fitters tend to use greases, pastes, or other substances to stick them to the flange face. This practice should be avoided if at all possible, since it tends to cause serious in-service leaks. If absolutely necessary to use something to hold the gasket in place, thin adhesive tapes may be used, but only along the outside edges of the gasket. Extensive care must be taken to ensure that it does not infringe on the seating surfaces. Tape on the seating surfaces will deform the gasket when made-up; it will then burn or melt out in operation and leakage will occur.


Related Discussions:- Alignment of piping flanges

Answer , define spring stiffness

define spring stiffness

Evaluate the composite transformation matrix, A triangle ABC with vertices ...

A triangle ABC with vertices A (30,20), B(90,20), C(30,80) is to be scaled by a factor of 0.5 about a point X(50,40). Calculate :- (i) The composite transformation matrix; and

Impeller design, The function of the impellers is to: (i) reduce bubble siz...

The function of the impellers is to: (i) reduce bubble size thereby increasing the surface area for oxygen transfer, and (ii) maintain a uniform environment, nutrient supply and he

A damped single degree mass-spring system, the spring k2 is attached to a b...

the spring k2 is attached to a base that is moving vertically with displacement y=yo sin(wt).assume x>y.derive the equation of motion .find the natural frequency and derive the ste

Illustrate process of radiographic examination, Q. Illustrate process of Ra...

Q. Illustrate process of Radiographic Examination? Radiographic examination of welded joints shall be performed when required by the Code or additionally when specified in this

Calculate the normal time for this operation, a) Describe Industrial Engine...

a) Describe Industrial Engineering. Discuss its scope and use in service and manufacturing industries. b) Deriving the stop watch study in a machine shop, ten observation of a d

Determine net work done, Determine net work done: 5 m 3   of air ...

Determine net work done: 5 m 3   of air at 2bar, 27 0 C is compressed to 6bar pressure following PV 1. 3   = constant. It is expanded subsequently adiabaticall

Determine maximum shearing stress in shaft, Determine maximum shearing stre...

Determine maximum shearing stress in shaft:   A propeller shaft 100 mm in the diameter, is 45 m long, transmits 10 MW at 80 rotation per minute. Determine maximum shearing str

Rough-cut capacity planning, A small producer of specialist vehicles is bui...

A small producer of specialist vehicles is building a new workshop to meet expected demand for its products over a period of 5 years.  The workshop will contain three workcentres,

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