Why is it important to test an automatic sampler?

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Automatic samplers currently on the market, if properly designed and installed, will deliver a representative sample of the product within the sampling zone. The variable is what is in the sampling zone.

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Water and oil/product will separate in tankage, slow flowing lines, and lines shutdown for a period of time. Unless care and consideration is given to the separation, the water may be missed and the sample not representative.

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A properly designed system will ensure that this separation between water and product is overcome and a homogenous mixture of water & product is returned to the sampling zone for representative sampling via the automatic sampler.

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Testing using API 8.2 Standards  is the current method for ensuring proper design and operation.

 

Why is the proper size injection port important?

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A properly sized injection port allows the water being injected to enter the stream at flow rates that approximate the velocity of the flow of product in the line being tested. If water is injected through too small of a port at too great of a velocity, it can act as a jet mixer making the results of the test invalid. Or, create a potential false passing of the system.

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We will work with you to determine the proper size (minimum size) of the injection port.

 

Why is the injection point important?

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The injection point needs to be far enough upstream of the automatic sampler to ensure the elements within the flowing system are given a chance to perform per their design. Homogenous mixing occurs through the use of valves, pipe configurations, and mechanical elements (plates, static mixers, etc). The intent of the test is to simulate water separation, then test the elements and the design for effectiveness in re-creating a homogenous mixture.