Fast-Loop Sampling Systems are used to accurately determine the quality of the custody transfer crude
oil samples. Fast-Loop sampling systems conform API 8.2 are used to collect representative samples on pipeline custody transfer, tanker loading/unloading, or refinery input, a representative
composite sample of the oil for laboratory analysis is critical.
Fast-Loop sampling allows the quality e.g. water and sediment content of a crude oil pipeline transfer to be established. This together with the metered
quantity is used to calculate the product volume for commercial and fiscal transactions. The automatic fast-loop sampling is used in crude oil applications, which commonly contain crude,
water and sediment.
Fast-Loop sampling Systems are designed conform the Standard Practice for Automatic Sampling of Petroleum and Petroleum Products API 8.2, ASTM D.4177 and ISO-3171 standards with an automatic sampler probe, sample receivers, PLC controller.
The Automatic Probe sampler is the basic and most important integral part of the automatic fast-loop sampling systems, it is a heavy duty reliable and accurate sample extraction device, which is designed to be mounted directly on the main pipeline and takes continiously grab crude oil samples of 1 ml volume, the sampler is actuated by a solenoid valve which is driven by a controller, generating either a flow proportional or time based signal, depending on the process. The Automatic Probe sampler is an integral part of the fast loop sampling systems.
Sample receivers, samples collected with the automatic fast-loop or in-line samplers are transferred to a sample receiver for storage.
Fast-Loop sampling is a serious matter in the measurement world for crude oil sales, mostly for custody transfer but also for tanker loading or unloading, a refinery input, a representative composite sample of the oil for laboratory analysis is very critical. Wrong measurements (<1% error) can incur a loss hundreds of thousands of dollars and frequently over a million dollars on one single shipload.
There are three well-known sampling standards that are used worldwide for custody transfer sampling of crude oil. Standards both for the automatic liquid sampling in fast loop and inline sampling systems designed and built by Doedijns are based on the API 8.2, ISO-3171 and ASTM D.4177 standards and the equipment totally complies with these.
The big advantage of fast-loop sampling systems conform API 8.2 is the possibility to take a flow proportional or time based sample. With automatic grab sampling you get an average sample in the sample receivers from a whole blend or pipeline transfer to calculate the product volume for commercial and fiscal transactions. We have improved our fast-loop sampling systems for crude oil liquids by:
These modern solutions simply regard the sampling systems themselves. Our worldwide reputation rests on the combination of excellent systems, and professional services by our team of specialists.
Mechatest employees possess decades of experience and knowledge. All of which is at your disposal when your sampling system needs adaptations, maintenance or repairs. Our staff has high-tech equipment at their disposal, thus increasing their efficiency even more. We are even capable of designing and manufacturing in accordance with foreign codes and standards.
Why wait any longer? Improvement starts today if you pick up the phone and call us at +31 (0)15 – 310 51 83. Our staff provides you with all the information you need to make an informed decision and choose the best sampling systems for liquid or liquefied gas.
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