D-2 Inc.

News

July 21, 2007 - D-2 Inc. Changes Address

D-2 Incorporated relocates to 19 Commerce Park Road, Pocasset, MA 02559. This relocation was undertaken to secure a greater flexibility in all our departments. D-2 Incorporated’s production processes will have a better throughput and increased quality awareness, which in turn, creates a more reliable product reaching our customer’s hands in a shorter amount of lead time. Additionally, improvements were made in our Engineering and Administrative areas to improve customer support functions.

 

April 4, 2007 - New Product: JF-WA1 Automated Water Pad Tester

D-2, Inc. is pleased to announce the introduction of the JF-WA1 Automated Water Pad Tester. The JF-WA1 is a fully automated pad analyzer designed to measure water content of Gammon free-water test pads.

The JF-WA1 utilizes a LED source-amplified photodiode receiver with microprocessor controlled solid state electronics to provide a fully automated filter analysis with free-water content displayed on the unit’s LCD display. Operation of the system is further simplified with the use of the innovative shuttle design.

With the JF-WA1 free-water measurement is now a simple matter of placing the sample pad in the shuttle, placing the shuttle in the analyzer, waiting 10 seconds and reading the ppm water content on the LCD display.

Please contact D-2, Inc. for more information or a product demonstration

December 6, 2006 - D-2, Inc. JF-1A Fuel Conductivity Sensor Listed in ASTM D2624

At the winter meeting, in Orlando, Florida, ASTM sub-committee J-04 voted to approve balloting on revised wording of ASTM method D2624 that includes the D-2, Inc. JF-1A in-line sensor for measurement of conductivity in fuels. Following a 5-year process of rigorous field trials, round robin comparisons, and extensive data analysis, the sub-committee has confirmed that the performance of the JF-1A exceeds the repeatability and reproducibility requirements of ASTM D2624 and will now be included in the method. The revised method has been moved from the sub committee to D2 for final ASTM ballot approval. Final completion of the revised method is expected in early 2007. Separate performance monitoring outside the scope of the ASTM tests has also demonstrated the superb stability and reliability of the sensor, with sensors maintaining calibration accuracy over several years of continuous field service.

Inclusion of the JF-1A in the method now provides users with the option for a true in-line measurement method, rather than the hand-held or slip-stream methods previously listed. This will have significant impact on the industry by opening several new options for regulatory compliance, quality assurance, and automated process control, where static dissipation additives (SDA) are required.

The JF-1A conductivity sensor provides a true in-line continuous measurement of conductivity, with real-time 4-20 mA and RS-232 output capability. With continuous measurement ability, users can now install fully automated or semi-automated conductivity control and quality assurance systems. The JF-1A allows users to maintain safety compliance by assuring conductivity remains within specified limits throughout an entire delivery cycle by providing continuous conductivity measurement. With only periodic sampling it is entirely possible to have widely varying conductivity values throughout a delivery cycle, even though a load average may be within limits.

In-line measurement capability also allows automated compliance assurance by providing a continuous record and alarming to out-of-spec conditions. No longer is the user required to manually take and analyze samples throughout the loading process. The JF-1A provides a significant labor saving opportunity for terminals and refineries that are currently required to take numerous conductivity samples.

Where automated SDA injection systems are used, the JF-1A can be used as the primary measurement. This will allow users to design feedback control systems, rather than relying on volumetric dosing (which can lead to unintended conductivity variability due to temperature changes and varying fuel response to the SDA).

February 2006 - EX Certificates recently obtained - Click here for details

December 2005 - One of our recent installations was for AirBP at their NEREFCO Refinery in the Netherlands. For this installation D-2 Inc. provided a complete packaged injection system for automated injection of Octel's Stadis 450 into a 24" ship delivery line. This was a particularly interesting system in that the requirement was to inject neat (undiluted) additive over a flow range of 100 to 5,000 m3/hr. D-2 supplied an injection system using a variable rate/variable injection volume metering pump, with a feedback control system using the JF-1A sensor as the control signal. The system and all components were ATEX certified.

The system uses a single pump to cover the entire injection range.  The pump is a Bran & Leubbe unit with variable stroke rate and variable injection stroke volume.  We can therefore control both injection rate and volume to end up with about a 50:1 injection turndown ratio.  This eliminates the need for multiple pumps. This installation provided control of conductivity to set point +/- 10 pS/m, even with raw(inlet) fuel conductivity values varying by well over 150 pS/m.