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How is the hydraulic test of the steel pipe done?

Author: Chase Liu
by Chase Liu
Posted: Jul 24, 2021

Hydraulic test is an indispensable link in the production process of steel pipes. Its function is to test the anti-leakage performance of the steel pipe under standard test pressure and stable voltage time. Like radiographic, ultrasonic and other flaw detection techniques, it is an important means of inspecting the overall quality of steel pipes.

Hydrostatic test refers to a test in which the pipe is filled with water and tested under pressure to maintain the specified pressure without leakage or rupture. Its operation includes three steps of flushing, pressure test and water control.

Key points of later technical operation:

  1. Parameter setting: Set the test pressure value and voltage stabilization time according to the specifications, steel type, and thread type of the tested pipeline;
  2. Perform a full-length hydrostatic pressure test on each pipe. The actual test pressure and minimum voltage stabilization time must comply with the regulations of the process card (sometimes the voltage stabilization time is appropriately adjusted according to the quality of raw materials);
  3. During the pressure test, check at any time whether the seal is intact and leaks;
  4. The control range of pipeline test pressure is:?standard hydraulic test pressure.

Nansteel Manufacturing Co.,Ltd, today an ISO - 9001:2008, certified Company. are a prominent Manufacturer, Stockist and Exporter of carbon steel pipe, stainless steel pipe, structural section, fittings and OCTG in various materials including Stainless Steel, Carbon Steel, Alloy Steel. in standard size and as per our customers’ requirements and drawings. Products from Nansteel are used widely in Nuclear Power Plants, Thermal Power Stations, Atomic Power Plants, Oil & Gas, Petrochemical, Fertilizers, and Chemicals & Pharmaceuticals.Together with the know-how which technical power and the many years and spontaneity service, we supply the product of good quality with economies of scale to the customer. Moreover, it had become the company compared is equipping the best role of competitive power improvement with the customer. We grew as the novelty one enterprise grows the partner relationship which goes out it pursues to be strong, continuity. Nansteel is a growth-oriented company, providing exceptional quality and service with competitive pricing on all of our products. We take pride in our employees, products and service, all of which have contributed to years of growth. This philosophy has earned us a solid reputation for excellence within our industry.

For more,visit:https://www.nan-steel.com/

About the Author

Marketing Director of Nansteel Manufacturing Co.,Ltd,which manufacture and supply differenet steel products, like seamless steel pipe, carbon steel pipe, stainless steel pipe, casing etc.

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Author: Chase Liu

Chase Liu

Member since: Oct 19, 2020
Published articles: 12

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