Viscosity sensors for the chemical industry
Chemical processing presents some of the most demanding environments for inline measurement technology. High temperatures, extreme pressures and hazardous areas are standard operating conditions. Hydramotion’s wide range of inline viscosity sensors are used extensively across the chemical industry and ensures a solution for virtually any chemical processing application.
These are true inline, industrial-grade viscometers, designed for continuous operation without intervention in extremes of temperature (-150°C to over 400°C), pressure, flow and viscosity range.
High accuracy and repeatability are maintained regardless of process conditions or plant noise. Instruments are available for every possible installation and with any process connection. All viscometers carry Intrinsic Safety (IS) certifications and are available in a range of optional materials, including nickel alloys, with optional surface finishes such as fluoropolymer coatings.
Eliminate off-spec batches and maximise yield with real-time polymerisation control >
 Long term stabilityIn chemical plants, measurement systems must deliver reliable data over many years of operation. Hydramotion viscometers are built to last – using high-quality materials and precision components to ensure long-term performance. The result is maintenance-free operation with high calibration stability over the instrument’s full service life. |
 Chemically resistantInline sensors in chemical processes are continuously exposed to corrosive and aggressive media. To ensure repeatable, long-term performance, Hydramotion viscometers are available in chemically resistant materials including Hastelloy, Inconel, and Super Duplex stainless steels. Optional PTFE and PFA coatings provide additional protection where required. |
![](https://hydramotion.exposecms.com/uploads/crop_image/500/500/20260203092255_ex-intrinsic-safety-logo.png?"){kind=logo} Intrinsic safety (Ex)Every XL Series viscometer is available as an Ex Certified product, certified using the Intrinsic Safety (IS) protection method. The Ex ‘ia’ certificate allows operation in even the most hazardous Zone 0 areas. And because all signals between sensor and safe area are digital, connection is simple, allowing long cable runs and only a single safety barrier. |
APPLICATIONS
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Real-Time Viscosity Control of Silicone Rubber with XL7
XL7 viscometers are installed on both production lines, either directly in the kettle or in the circulating pipelines. The installation directly into the tank allows for real-time tracking of the silicone’s viscosity as the polymerisation reaction progresses. Viscosity is an important parameter as it is directly related to the degree of polymerisation, or molecular weight….
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XL5 Meets Strict Viscosity Requirements for PU Dispersion in DMAc A manufacturer working with a high-quality polyurethane dispersion in dimethylacetamide (DMAc) encountered a challenge in maintaining their dispersion’s viscosity according to stringent quality standards. During production, viscosity is considered the primary specification. By diluting the dispersion until the viscosity target is met, the team can consistently reduce variation in the dispersion, which is their main objective… |
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