pipe manufacturing and its type

1
Pipe manufacturing and types
2
What is piping?

• piping is a system of pipes used to
  convey fluids (liquids and gases) from one
  location to another. The engineering discipline
  of piping design studies the efficient transport
  of fluid
• Industrial process piping (and accompanying
  in-line components) can be manufactured
  from wood, fiberglass, glass, steel, aluminum, pla
  stic, copper, and concrete. The in-line
  components, known as fittings,3 valves, and
  other devices, typically sense and control
  the pressure, flow rate and temperature of the
  transmitted fluid, and usually are included in
  the field of piping design (or piping
  engineering). Piping systems are documented
  in piping and instrumentation diagrams (PIDs).
  If necessary, pipes can be cleaned by the tube
  cleaning process.

3
Generally, industrial piping engineering has
three major subfields

• Piping material
• Piping design
• Stress analysis

4
Stress analysis

• Process piping and power piping are typically
  checked by pipe stress engineers to verify that
  the routing, nozzle loads, hangers, and supports
  are properly placed and selected such that
  allowable pipe stress is not exceeded under
  different loads such as sustained loads,
  operating loads, pressure testing loads, etc., as
  stipulated by the ASME B31, EN 13480 or any other
  applicable codes and standards. It is necessary
  to evaluate the mechanical behavior of the piping
  under regular loads (internal pressure and
  thermal stresses) as well under occasional and
  intermittent loading cases such as earthquake,
  high wind or special vibration, and water hammer.
  This evaluation is usually performed with the
  assistance of a specialized (finite element)
  pipe stress analysis computer programs such as
  CAEPIPE and CAESAR.
• In cryogenic pipe supports, most steel become
  more brittle as the temperature decreases from
  normal operating conditions, so it is necessary
  to know the temperature distribution for
  cryogenic conditions. Steel structures will have
  areas of high stress that may be caused by sharp
  corners in the design, or inclusions in the
  material.

5
Materials

• The material with which a pipe is manufactured
  often forms as the basis for choosing any pipe.
  Materials that are used for manufacturing pipes
  include
• Carbon steel
• ASTM A252 Spec Grade 1, Grade 2, Grade 3 Steel
  Pile Pipe
• Low temperature service carbon steel
• Stainless steel
• Nonferrous metals, e.g. cupro-nickel, tantalum lin
  ed, etc.
• Nonmetallic, e.g. tempered glass, Teflon lined, PV
  C, etc.

6
Standards

• There are certain standard codes that need to be
  followed while designing or manufacturing any
  piping system. Organizations that promulgate
  piping standards include
• ASME - The American Society of Mechanical
  Engineers - B31 seriesASME B31.1 Power piping
  (steam piping etc.)
• ASME B31.3 Process piping
• ASME B31.4 Pipeline Transportation Systems for
  Liquid Hydrocarbons and Other Liquids
• ASME B31.5 Refrigeration piping and heat transfer
  components
• And further more.

7
There are three basic types of plastic pipes

• Solid wall pipe
• Extruded pipes consisting of one layer of a
  homogeneous matrix of thermoplastic material
  which is ready for use in a pipeline
• Structured wall pipe
• Structured-wall pipes and fittings are products
  which have an optimized design with regard to
  material usage to achieve the physical,
  mechanical and performance requirements.
  Structured Wall Pipes are tailor made solutions
  of piping systems, for a variety of applications
  and in most cases developed in cooperation with
  users

8
Cont..

• Barrier pipe
• Pipe incorporating a flexible metallic layer as
  the middle of three bonded layers. Barrier pipe
  is used, for example, to provide additional
  protection for the contents passing through the
  pipe (particularly drinking water) from
  aggressive chemicals or other pollution when laid
  in ground contaminated by previous use.
• Most plastic pipe systems are made from
  thermoplastic materials. The production method
  involves melting the material, shaping and then
  cooling. Pipes are normally produced by extrusion.

9
Pipe manufacturers in uae

• JF INDUSTRIES
• P.O.BOX 526Phone [phone]Fax 971 6
  7436503Address Amman StreetNew Industrial Area
  2,Ajman, United Arab Emirates
• www.jfindustries.org
• GULF PIPE
• H.O. - P.O.Box 66575 , Dubai, UAE
• Factory - Alghail Industrial Park, Ras Al
  Khaimah,UAE