Matters Need to Be Considered of How to Install Alloy Steel Pipe

The time of issue:2014-6-18 9:49:08       Author:

How to install alloy steel pipe should consider technical preparation
Before the construction, grasp the performance requirement of alloy steel pipe positively, study construction acceptance specifications, construction plan and SOP, participate kinds of trains of black steel pipe construction to be familiar with alloy steel pipe construction methods as soon as possible.

How to install alloy steel pipe should consider facility preparation
According to the installation requirements of alloy steel pipe, we need a processing site with thick rubber sheet above. Also we need a rinsing bath and a alkaline bath which the volume is 12m×1.5m×1.5m to clean and degrease pipeline and accessories.

How to install alloy steel pipe should prepare construction tools
The construction tools include wood hammer, clean overalls, white gloves, electric planer, angle grinder, cut-off machine, nylon rope, alkali resistant rubber shoes, X-ray detection apparatus, etc.

Installation program of how to install alloy steel pipe
Inspect pipeline valve, clean and degrease pipeline valve and close the tube, measure the size of pipeline, prefabricate, inspect welding line of pipeline.

How to install alloy steel pipe of inspecting pipe valve
The inside and outside of black steel pipe should be smooth, clean and don't have pinhole, crack, corrosion, etc. The local defect of pipe surface should be cleaned. The outer diameter and wall thickness should be less than stated negative deviation.

How to install alloy steel pipe of test medium
Strength test water is clean domestic water. Air tight test is dry and clean air or nitrogen. Pay special attention to safety when using nitrogen to prevent suffocation. Prohibit using oxygen to be the pressure test gas.

How to install alloy steel pipe of valve test
The valve test should be done on the experiment table. Drain the air in valve when testing. Boost slowly. Stop pressure and inspect when the pressure is up to working pressure. If there is no abnormal phenomenon and leakage, continue to boost until the pressure is up to test pressure. Hold the pressure for 10 minutes. If there is no abnormal phenomenon and leakage, lower the pressure to working pressure. Then do a complete inspection.

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