S/S Piping abbreviated mean of DN, OD, ID etc
Stainless Steel Seamless Pipe, welded stainless steel tube, ss pipe fittings, stainless steel flanged, alloy steel pipe, nickle alloy steel pipe
What is abbreviated meaning of NPS DN OD DE ID WT UT ET HT BE CF etc
SS: Stainess Steel
CS: Carbon Steel
STS: Stainless Steel
SMLS: Seamless
NPS: Nominal Pipe Size
DN: Diameter Nominal
OD: Outside Diameter
DE: External Diameter
ID: Inside Diameter
WT: Wall Thickness
Thk: Thickness
Φ: External Diameter, Indicates the diameter of the through circle; It can also represent the outer diameter of the pipe, but in this case, it shall be multiplied by the wall thickness
UT: Ultrasonic Test
ET: Eddy current experiment
HT: Hydraulic pressure Test
PT: Penetration Test
BE: Bevel End
CF: Cold Finish
AP: Annealing Pickling
BA: Bright Annealing
TPI: Third Party Inspection
Technical aspects:
Be familiar with the construction drawings carefully, understand the main functions of each equipment of the construction equipment from the flow chart, and be familiar with the medium, pressure, material, temperature, etc. of each process pipeline connected between the equipment in combination with the list of pipeline characteristics, as well as the pipelines with high temperature, high pressure, special material and special medium, so as to clarify the main contents of quality control, Prepare the main quality control objectives of the process pipeline construction of the project; When reviewing the construction scheme, clear and reasonable requirements shall be put forward for quality standards, construction methods of main projects and quality assurance measures;
Before construction, the engineering technicians must make technical disclosure to the constructors, mainly including construction methods, quality assurance measures, quality standards and so on; In order to ensure the prefabrication quality, the influence of weather and environment on construction can be avoided, which is more conducive to the control of construction quality. Attention shall be paid to the following main aspects during installation:
Summary:
The quality of a project determines the service life of the project. A good owner evaluation may establish a good image for the construction unit in the market, and a good image can bring a good development space. In the environment of increasingly fierce market competition, quality will be a key link in many weights. Only by strictly controlling the quality can we have greater development.
