Prefabrication Spool

Prefabrication Spool

C&N prefabrication Pipe Spool

A pipe spool is a prefabricated component of a piping system. Pipe Spools bolt up to flanges and connect, these are oftentimes used in big refineries connecting to ex-changers. Pipe Spools are made up of three components: pipes, flanges and fittings. “A Pipe Spool drawing shows a single spool and is optimized to provide all the information needed by the fabrication shop to accurately manufacture or assemble the spool. The drawing must contain these three things: Cut lengths for all pipes, Number, Location, and type for each weld, and A parts list showing the fittings.

How They Are Manufactured:

“Pipe Spools are fabricated from a number of raw pipes and pipe fittings (e.g. elbows, flanges, tees, etc.) in fabrication shops. Raw pipes are cut to the required sizes and moved with pipe fittings to a fitting table, where some of the components are fitted together (i.e. temporarily connected). The resulting sub-assembly (part of the final pipe spool) continues with welding operations (i.e. permanent connected) before it comes back to the fitting table and gets fitted with other spool components.” (wermac.org)

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Pre-Fabrication of Piping spools

· Experienced team of management and project personnel
· In house pipe spool drawings using client-supplied internal pipe axis diagram
· Solid and rich welding experience and capabilities
· In-house surface treatment,FBE ,3LPE coating
· Independent 3rd party inspection

Roll fitting and welding ,Position fitting and welding according to customized internal pipe axis diagram.
specializes in fabricating simple and complex ASME-certified power piping spools,
In-house surface treatment,FBE ,3LPE coating

Steel Pipe Spools Specifications

•  Type  Steel Pipe Spool
•  Size  114mm to 2500mm diameter (Seamless & Welded, Fabricated)
•  Operating Pressures  Maximum 3500kPa
•  Maximum Velocities  6m/s for cement mortar lined fittings
•  Operating Temperatures  -40˚C to 70˚C
•  In Form  spool
•  Standard  ANSI / ASME B 36.10 & B 36.19
•  Class  150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6,10, 16, 25, 40
•  Thickness  10s/3 mm to XXS/70 mm
•  Specialize  As per drawing
•  Dimensions  ANSI / ASME B 36.10 & B 36.19
•  Usage/Applications  Oil Field, Offshore, Water System, Shipbuilding, Natural Gas, Electric Power, Pipe Projects.

Pipe Spools Range

ANSI / ASME B 36.10 & B 36.19 Pipe Spool Manufacturing Process

Piping Spools are produced by the usage of Raw Pipe and Fittings. The cutting process of the Raw Pipes is finished with a specified size that is suitable for the pipe fitting and other components. Pipe Spools are fabricated using various sorts of raw pipes and pipe fittings, and they include flanges, elbows, tees, and a lot more. They’re usually fabricated offsite. The raw pipes are present in specific sizes and along with pipe fittings and other components. They’re temporarily fitted together. This partially finished sub-assembly is then welded with another spool component.

There are two main parts of the Pipe Spooling Process:

• Roll Correction and welding
• Durable position Fitting and Welding

In Pipe Spool Roll Fitting and Welding, the main pipe is often turned using a rolling machine, and therefore, the fitter does not get to alter his position to perform the task. In spool position fitting and welding, some or portions of most pipe go beyond the clearance limit forcing the fitter to maneuver around the main pipe to finish the fitting and weld process. That’s why spool position fitting and welding is usually an extended process compared to spool roll fitting and welding. Reducing the amount of spool position fitting and welding is one of the objectives of pipe spool fabrication sequencing.

Pipe Spool Manufacturing Process chart

Pipe Spool advantages

• (Cost and Time Saving in Prefabrication , Inspection & Testing) :
• Using Prefabricated Spools will avoid the situation of Technician and Welder Shortage at site , and lack of space in the Work Yard
• Prefabricated Spools will entail no or little investments in fabrication & testing equipment by users. Radiography, PMI, MPI, Ultrasonic tests, Hydro tests etc. can be performed better & effectively in controlled environments.
• Better control on welding parameters in controlled environments resulting in lesser probability of rework at site.
• Lesser dependency on power availability, avoiding unnecessary time delays.
• Improved safety in better manufacturing conditions than on site.