Chemical Industry
Safe processes for demanding media
Reliable processes start with the correct components. Valve designs with robust materials in accordance with your standards ensure the quality and durability of your plants.
Safe processes for demanding media
Reliable processes start with the correct components. Valve designs with robust materials in accordance with your standards ensure the quality and durability of your plants.

Chemical processes have stringent requirements for safety, material resistance and standardized integration. In applications such as chemical dosing, the chlor-alkali industry and fertilizer production, our valve solutions enable precise control, compact design and reliable materials – even with corrosive media.
With certified components and customized solutions for complex process steps, we offer reliable technology for stable procedures. Smart automation and monitoring technology offer safety and ease of maintenance. As a listed partner of international chemical companies with many years of experience, we can help you with practical expertise and global support.
Precise dosing is crucial for product quality, safety and resource efficiency. Even the smallest deviations in acids, alkalis, solvents or catalysts can disrupt processes. GEMÜ valve, measurement and control solutions ensure reproducible dosing quantities, even with corrosive, highly viscous or particle-laden media. Chemically resistant materials such as PTFE, PVDF, PFA and stainless steel ensure tightness and a long service life, while modular and auomation-capable systems offer high accuracy.

Changes in pressure and flow as well as fluctuations in batch or continuous processes have a direct impact on dosing accuracy. Our intelligent positioners detect process values in real time and adjust accordingly. Automated controls ensure precise dosing quantities, maximum repeatability and stable process quality, even under dynamic conditions or in potentially explosive areas.

Space-saving, safe and modular solutions are crucial in modern chemical plants. GEMÜ M-block systems combine several batch control functions in one compact unit. Chemically resistant materials and leak-free diaphragm technology ensure operational safety, reduce downtime and enable use in ATEX zones. Modular design, easy maintenance and digital integration allow plants to be operated efficiently, flexibly and reliably.

Chlor-alkali electrolysis requires high accuracy and safety. Every stage of the process – from water treatment and brine production to the handling of chlorine and alkalis – has specific requirements. Our valves ensure reliable separation and safe control of fluid flows, minimizing downtime. Chemically resistant materials such as PFA, PTFE, PVDF, PVC and PP ensure durability and safe processes, even under extreme conditions.

Chlorine, alkalis, brine and oxidizing agents are highly corrosive and require maximum tightness and precise material selection. Our multi-layer diaphragms with titanium pins and PFA components resist permeation, corrosion and abrasion. The valves enable safe dosing, recirculation and recovery of anolyte and brine, even in high-temperature or potentially explosive areas, and meet the requirements of ATEX zones.

High throughputs, complex recovery processes and potentially explosive plant areas require durable, low-maintenance components. GEMÜ modular valve ranges, compact positioning elements and durable seal systems reduce downtime and simplify maintenance. The valves can be easily integrated into existing processes, support precise control of fluid flows and ensure safe separation and consistent process quality over long operating periods.

Fertilizer production involves corrosive acids, abrasive solids and high temperatures. Sulphuric, phosphoric and nitric acids place demands on every plant component. Our valves ensure reliable, safe processes in the long term under these conditions. Built-in sensors and digitalization solutions make maintenance easier.

Corrosive and abrasive media quickly lead to failures in conventional systems. GEMÜ uses PFA, PTFE and PVDF linings as well as rubber-lined or metal valve bodies. This combination protects against wear, extends service life and reduces maintenance costs.

Fluctuating raw material qualities and more stringent environmental regulations call for flexible, automated processes. We offer intelligent on/off valves, modular designs and digital interfaces for precise control, clean processes and efficient, low-emission operation.

Waste water in the chemical industry contains corrosive, toxic or poorly degradable substances that need to be treated. Such media must not be allowed to escape and require precise control and reliable shut-off. Our valves, measurement and control systems support all process steps from collection and neutralization to recirculation. Typical applications include the discharge of production waste water from reaction vessels, the dosing of alkalis, milk of lime and acids, and the dosing of cleaning agents for waste water streams.

Corrosive liquids, abrasive solids and slurries quickly lead to failures in standard valves. We use media-resistant plastics such as PTFE, PVDF and PP as well as reinforced diaphragms in full bore diaphragm valves. This design ensures high durability and minimizes downtime. Practical examples include pumping phosphate-containing suspensions, conveying acids from reaction vessels and safely diverting abrasive materials or solid residues from clarification processes.

The precise dosing of acids and alkalis is crucial for stable pH values and compliance with statutory requirements. Our control valves, intelligent positioners and digital interfaces enable reliable neutralization, continuous monitoring and safe process control. In practice, this means that acidic production waste water from mixing reactions or alkaline rinsing fluids from cleaning processes are precisely neutralized and fluctuations in waste water quality are automatically compensated for.

The advantages for you
We offer complete solutions for all process requirements in chemical processes – from valves and control and measurement systems to modular valve packages. All components are synchronized with each other and enable safe and efficient operation.
Our media- and temperature-resistant valves ensure reliable processes, even with corrosive or abrasive media. Leak-free diaphragm technology, robust materials and durable sealing systems reduce downtime and increase your system availability.
Modular multi-port valve blocks, individually adaptable actuators and a wide range of materials allow for use in different processes and media. We tailor solutions precisely to your plant specifications, batch processes or continuous operations and ensure reliable function even under changing conditions.
Intelligent positioners, position indicators and actuators can be seamlessly integrated into process control systems. Real-time monitoring, precise dosing, predictive maintenance and complete documentation support compliance with statutory regulations and increase the efficiency of your plants.