Overview

Key criteria to which a sampling system must be designed are that the sample must be taken from a well-mixed and representative point in the flow. This requirement is also true for on-line analyzers and makes the representative bypass loop of fast loop and CoJetix sampling systems the ideal location for the installation of density and water-in-oil meters. The information from these devices can be used (in conjunction with the fiscal sample) to provide a bulk liquid density, which can be feed into a flow computer and an indication of water slugging to minimize process upset. The water analysis from the fiscal sample is then used to calculate the mass of dry oil.

The sampling loop is designed so that loop velocity is sufficiently high to maintain homogeneity at all times and mounted in the receiver housing in the loop are a full-bore cell sampler, flow indicator and isolation valves. The cell sampler isolates and discharges a grab sample directly through the bottom of the sampler into a sample receiver.

All sampling and analysis system components are mounted inside a receiver housing allowing them to be easily isolated and serviced without needing to shut down the main pipeline. The receiver housing can be heated if required and may contain multiple receivers with manual or automatic changeover. If compliance to ISO 3171, ASTM D 4177, is required the system is fitted with a CanWeigh receiver weighing system that continually measures the sampling system performance, as specified by the sampling standard. Sample receivers can be removed to the laboratory where they can be re-mixed with a suitable mixing system prior to sample analysis.

All sampling systems are designed in accordance with all the international sampling standards and supplied with a guarantee of compliance and a warranty.

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JISKOOT Hydraulic Power Pack HPU UK version

Manual

JISKOOT Hydraulic Power Pack USA

Manual

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