PRODUCT FAMILY
Dynamic Scale Loop
Examine salt deposits in pipework
The Dynamic Scale Loop is the standard automated laboratory test method for analysing precipitates and deposits of salts, lime and other crystalline structures in piping systems. This test method is also known as the tube blocking system. With temperatures up to 300 °C (572 °F) and pressures up to 400 bar (5,800 psi), the Dynamic Scale Loop can be used for many applications such as oil pipelines, water pipes, heat exchangers in industrial plants and geothermal energy.
This means that the Dynamic Scale Loop can be used to test a wide range of chemicals such as scale inhibitors, antiscalants, scale inhibitors or scale removers. It can be used for all aqueous solutions with crystalline deposits, e.g. carbonate, sulphate, iron and other deposits, sugar, salt from seawater and geothermal water.
As experts in Dynamic Scale Loops laboratory equipment, we offer three different Scale Loops models for every need.
The right instrument for every application
Application Areas of Dynamic Scale Loop
Observation of crystalline deposits like salts or scale in pipelines
Testing inhibitors, antiscalants or scale removers
Testing additives for water treatment and water purification
Develop and optimise scale inhibitors
Investigate hardness stabilisers for aqueous solutions
Quality control
Originally developed for the oil industry - now used in many sectors
If fluids containing water are pumped through a pipeline, or if sea water or reservoir water are back-pressed, barium sulphate or other salt deposits (scale) can form, especially when salt water and reservoir water are mixing. These hardly soluble substances deposit to the inner wall of the pipeline and can plug the line or the pores in the sediment.
Originally, the Differential Dynamic Scale Loop was developed for applications in the petrochemical and oil industry as tube blocking system. However, to keep pipelines clear of deposits is also essential for many industrial processes where water pipelines play an important role, for example in mining, paper manufacture, desalination or in various other areas where a reliable water supply, e.g. with cooling water, has to be ensured.
Many products (additives) for these industries like inhibitors and threshold inhibitors for water treatment or water purification can be tested with the laboratroy instrument Differential Dynamic Scale Loop.
IN USE WORLDWIDE
Used by Leading Labs
Measuring principle of Dynamic Scale Loop
The Differential Dynamic Scale Loop was particularly developed to observe this deposit-forming processes under realistic conditions and to design counteractive measures. This is carried out in three steps:
- 1. Determine the risk of sedimentations
- 2. Selection or development of an inhibitor
- 3. Test the efficiency of the inhibitor and determine the minimal necessary inhibitor concentration
Two aqueous samples are mixed using HPLC pumps and the resulting solution is tested for crystallisation and salt deposits in a temperature-controlled model pipeline.
In the differential scale loop, the inhibitor concentration is automatically changed via a third pump. This allows the minimum inhibitor concentration MIC to be determined in a single test. With the mobile DSL, the MIC is determined manually by changing samples or performing separate tests.
Online Demo with DSL
During the product demonstration, you will gain many insights into how it works. You can follow the measuring process live and then discuss your questions with our experts.
Important Data at a Glance
We offer three measuring devices for the Dynamic Scale Loop measuring principle. The Differential Scale Loop DSL for convenient use in the laboratory, the new inline model and the mobile version mDSL for use directly on site.
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Differential Scale Loop DSL - The all-rounder for the laboratory - |
inline Differential Scale Loop iDSL - The new one - |
mobile Differential Scale Loop mDSL - Mobile for travelling - |
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| Temperature range | +30 ... +300 °C (86 .. 572 °F) | +10 ... +250 °C | +30 ... +300 °C (86 .. 572 °F) |
| Pressure Range |
Basic: 50 bar (725 psi) Mid: 200 bar (2,900 psi) High: 400 bar (5,800 psi) |
3.4 bar ... 45 / 172 bar (49 psi .. 650 / 2,500 psi) | 3,4 bar ... 45 / 172 bar |
| Flow rate |
Single pump: 0.1 .. 10 ml/min Total flow: max. 30 ml/min |
Single pump: 0.1 .. 5 ml/min Total flow: max. 10 ml/min |
Single pump: 0.1 .. 5 ml/min Total flow: max. 10 ml/min |
| Model pipeline |
Length: 2 m, Inner Ø: 0.75 mm Material: stainless steel Other lengths, diameters, materials (Cu, Al, Hastelloy,..) optionally |
Length: 1 m, Inner Ø: 0.35 mm open cartridge |
Length: 1 m, Inner Ø: 0.75 mm Material: stainless steel |
| Sour gas resistance | optionally | - | - |
| Sample throughput | low to high | low to middle | low to middle |
| Good to Know |
automatic tests with changing inhibitor concentration, automatic cleaning procedure, many options available |
Mobile use with transport case | Mobile use with transport case |
The DSL Product Family
Differential Scale Loop
Benefit from the fully automated laboratory solution for analysing deposits in pipelines.
inline Differential Scale Loop
Examine depositions directly in pipelines (inline).
Mobile Differential Scale Loop
Examine scale deposits in the pipelines directly on site at your customers’ premises during the process.