Industry · Glass Industry
From furnace gas to process air, from cooling water to pneumatic lines: filtration engineering that protects product quality and furnace life at high temperatures.
High temperature
Filter resistance in furnace gas
Bubble · stone
Optical defects caused by process air
Recovery
Captured particles returned as raw material
Critical points
Glass production is one of the industries that demand the highest levels of thermal precision and optical purity. Particle control at every stage, from furnace gases to process air and from cooling water circuits to pneumatic lines, determines not only product quality but also furnace life. That is why heavy-duty filtration engineering suited to the glass industry’s extreme operating conditions has become a critical operational requirement.
Glass furnaces require continuous operation at high temperatures. Managing the flue gases generated in this process is decisive for both environmental compliance and cost control. Furnace gas filtration meets atmospheric emission standards and, by capturing particles in the flue gas, enables full compliance with environmental regulations. Part of the particles captured in the filter systems can be returned to production, minimizing raw material losses and turning the filtration investment into a sustainable cost advantage.
Solution: High-temperature bag filters
When molten glass is formed, whether for float glass, bottles or glassware, the air used comes into direct contact with the product. At this point, process air purity directly determines final product quality. Even the smallest particle of oil, moisture or dust in the process air causes optical defects on the glass surface known as bubbles or stones. Precision air filtration eliminates this contamination and safeguards surface quality. For glass produced as food packaging, a sterile air line becomes mandatory, and filtration systems that keep microbiological load under control play an additional critical role in this segment.
Solution: Precision process air filtration
The huge cooling towers and sensitive pneumatic control valves in glass plants are extremely sensitive to impurities in water and air. Sediment in cooling water causes fouling in heat exchangers and reduces cooling efficiency; filtration barriers that prevent this keep system efficiency stable and energy costs under control. Filtering the compressed air used in pneumatic systems prevents sensitive valves from seizing and avoids sudden shutdowns. This extends equipment life and significantly reduces unplanned maintenance costs.
Solution: Cooling water and compressed air filtration
Glass production line
Select a stage on your line to see the Prosestim filters and micron range used at that point.
01 · Emissions
Furnace gas filtration captures particles in the flue gas to ensure environmental compliance, and part of the captured particles is recovered.
02 · Batch · conveying
Capturing the dust generated during batch preparation and conveying reduces raw material losses.
03 · Oil · moisture · dust
Oil, moisture or dust in process air causes bubble and stone defects on the glass surface.
This stage is your existing equipment. Let’s design the earlier stages together; our engineers will recommend the right filter.
Let’s define a solution for this stage of your line together with our engineers. Write to us
04 · Heat exchanger
Sediment in cooling water causes fouling in heat exchangers; filtration keeps system efficiency stable.
Applications
The same filtration principles apply across applications, with different material and micron choices.
Furnace emissions and process air.
Sterile air line and surface quality.
Optical purity during forming.
Heat exchanger and pump protection.
Products used in this industry
Each product page lists the micron range, material compatibility and operating conditions.
Glass fiber bag filters for continuous operation at 260 °C, with an ePTFE membrane option; for cement, energy and metallurgy
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P84 bag filters with trilobal fibers rated up to 240 °C; ≤5 mg/Nm³ emissions with an ePTFE membrane
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PPS (Ryton) bag filter rated up to 190 °C for acidic and humid flue gases; high resistance to hydrolysis
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PTFE bag filters rated up to 240 °C with pH 0–14 chemical resistance; for aggressive and sticky dusts
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Consumable-free filtration: stainless steel basket filter housing with washable basket, 10–3,000 µm
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100% pure PP, binder-free melt-blown cartridge filter (sediment filter); 1–150 µm for RO pre-filtration and process water
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