Differential pressure gauge

Differential pressure gauges are not only used for monitoring gaseous media, but are also suitable for monitoring liquid material flows in industrial processes. They even record Δp pressure gauge values and thus enable reliable differential pressure measurement of operating fluids, solvents, hydraulic oils, lubricants or cryogenic media such as LNG.

Typical applications can be found in the chemical and petrochemical industries, food processing, water treatment and in energy and process engineering. Thanks to their compact design, the devices can be easily integrated into existing systems, require little maintenance and offer high long-term stability.

Depending on the medium - whether viscous, aggressive or temperature-critical - various differential pressure gauge designs and materials such as stainless steel, plastic or high-performance materials are available.

The devices are approved for natural gas, town gas, coke oven gas, biogas, hydrogen, nitrogen, air and many other gases on request.

Differential pressure gauges are essential components in numerous industrial applications, as theyenable precise monitoring of filtration processes and filter monitoring . They areused to measurepressure differences and thus check the condition of filter elements - a decisive factor in ensuring process stability, protecting systems and maintaining consistent product quality.

Used in chemical, petrochemical and polymer processing:
Differential pressure gauges perform a central monitoring functionin chemical and petrochemical processing plants . They detect pressure losses via filters in pipes and filter units, allowing potential blockages to be detected at an early stage and ensuring that chemical reactions run smoothly.

Applications in the natural gas industry:
When pumping and processing natural gas as well as LNG ,differential pressure gauges are used to check particle filters inorder to identify solid or liquid contaminants in good time. This contributes significantly to process gas filtration, process safety and compliance with legal requirements for the purity of the medium.

Maritime applications and shipbuilding:
Differential pressure gauges are used on board ships in fuel, oil and cooling systems, for example. They enable the early detection of pressure loss indicators, which indicate dirty filters, and thus contribute to operational safety and system monitoring.

Industrial production:
In metalworking, plastics processing and general manufacturing, differential pressure gauges serve as control instruments for filter monitoring in cooling, lubrication and operating fluid systems. Permanent differential pressure measurement protects machine components and supports consistent production quality.

Process engineering applications:
In the process industry, differential pressure gauges are used for particle separation in operating media, gas flows or liquids. The timely detection of increased Δppressure gauge values prevents unplanned downtimes and ensures the continuous operation of complex systems.

Special applications:
Differential pressure gauges also provide valuable servicesin highly demanding areas such as medical technology, semiconductor production or environmental technology . They offer the precision required to operate sensitive processes under controlled conditions.
Thanks to their robust design and the possibility of exact adaptation to a wide range of process parameters, differential pressure gauges make a significant contribution to efficiency, safety and quality in numerous branches of industry.

Differential pressure gauges are indispensable components innumerous branches of industry such as the chemical industry, petrochemical & polymer plants, the natural gas industry, shipbuilding and maritime systems, industrial manufacturing when it comes to differential pressure measurement and the precise monitoring of filtration processes in gaseous media. They make a decisive contribution to operational safety, process control, process gas filtration and efficiency optimization.

In chemical processes as well as in all other industries/sectors, continuous filter monitoring and particle separation are essential . Differential pressure gauges enable the early detection of contamination in process gases, ensure consistent product quality and protect sensitive system components from damage.

Differential pressure gauges are manufactured from a variety of specially selected materials to meet the demanding operating conditions in industry . Factors such as temperature and chemical resistance, mechanical stability and compatibility with process media play a decisive role.

Aluminum alloys such as AlCuMgPb Stg are used for the housing and piston . These offer high mechanical strength combined with low weight and are also corrosion-resistant in anodized versions. Brass nuts ensure a secure connection and offer good resistance to many media - ideal for process gas filtration and filter monitoring.

The seals are made of Viton, a high-performance fluoroelastomercharacterized by excellent chemical resistance and temperature tolerance - ideal for industrial differential pressure gauge applications. The dial and pointers are made of aluminum , which ensures good readability and high resistance .

The display housing is made of PPH (polypropylene homopolymer), a robust and chemical-resistant plastic. The viewing panel is made of acrylic glass and enables a clear, distortion-free display of the Δppressure gauge reading.

In terms of standard conformity, it is operated as simple electrical equipment with type of protection Ex-i - a special Ex marking is not required in accordance with DIN EN 60079-11, section 5.7.