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How Detection And Correction Of Leaks, And Normalization Of Lines Are Done Under Professional Supervision?

Feb 3rd 2020 at 3:27 AM

 

To detect, and correct a leak, there are a series of steps that will originate according to the equipment being tested. Therefore, this topic will be extended with details according to the situation, specifically in the chapter of application of hydrostatic tests. The normalization of lines is done every time, and the entities in charge authorize its execution. For this, the hydrostatic test must have been a success. The authorities in charge must go through with Equipment Inspection, Process Engineering, and Operations. Every hydrostatic test that is done must have a subsequent normalization.

Safety rules, and procedures for the application of the hydrostatic test

To carry out the application of hydrostatic tests, the following pertinent measures for the prevention, and safe execution of this activity must be considered. Before carrying out any work related to the hydrostatic test, all the necessary auxiliary resources must be available, in order to avoid wasting time, and for personnel to incur inappropriate acts that threaten security.

The execution of a hydrostatic test must be protected by their respective work permits which must be issued by the operating personnel. The hot work permit is a document which constitutes a “guarantee” that all preventive measures have been taken like gas tests, condition of the equipment, protective devices such as double block and bleed plugs, additional recommendations, additional safety equipment or implements, etc. However, the worker, and the managers must assume an attitude of alertness above all. Some organizations establish an internal regulation to control, and ensure that no worker is exposed to the dangers of static energy, during maintenance or operation. In the same way they establish some control criteria.

What is to know about hermeticity test?

This test is generally performed by operational requirements, since the result of the hydrostatic test performed has been successful. As the name implies, the objective is to test the tightness of a particular system, especially in flanged joints, and other mechanical joints. The test medium is generally the fluid. Other times and very often, this test is performed during the steam cleaning, or blowing of the plant after a maintenance stop, using low pressure steam. As an alternative, only the use of dry air or inert gas (usually nitrogen) is allowed. Although, this can generate all the dangers of a pneumatic test.

At work sites such as sea, lakes or rivers, before starting any operation, a sufficient number of round lifeguards, life jackets, safety belts, and fire extinguishers will be supplied. All this equipment must be located in an easily accessible area. To seal off from water, gases and foreign objects in newly laid pipes, or pipework systems that are under repair, expandable pipe plugs are used.

Hydrostatic test require enough security awareness

The person in charge of supervising the activity must previously give a “safety talk” to the executing staff so that it is oriented in the work, and alerted to the risks inherent in her. It is important to emphasize the use of personal protective equipment. Consider the actions to be taken depending on the type of installation where the work is going to be performed. For example, the connection of a flange. It is very important to make an ocular inspection of the work area, in search of an involuntary unsafe act or condition that could hinder the work or the good execution of it. A tour must be made with a view of the line, or equipment in order to verify that they are blocked with the blind accessories, or with the corresponding valve seals. To avoid any leaks double block and bleed plugs are used.

 

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