Filtering fluids at elevated temperatures (above 100°C / 212°F)—such as hot process oils, aggressive solvents, and steam—presents extreme challenges for standard filtration equipment. Plastic vessels and standard elastomeric seals fail quickly under severe thermal stress.
Material Selection for Thermal Resilience
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Vessel Construction: Stainless steel (SS 304 or SS 316L) is essential for resisting thermal expansion, mechanical stress, and oxidation at elevated temperatures.
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Cartridge Media: Woven wire mesh, sintered metal micro-screens, or high-temp fiberglass media replace standard polypropylene elements.
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High-Temp Elastomeric Seals: Viton, PTFE, or Encapsulated O-rings must be specified to maintain leak-free seal integrity under high heat.
Key Benefits for Thermal Applications
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Process Continuity: Prevents structural element collapse or seal failure during heat surges.
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Solvent & Chemical Resistance: Retains integrity when handling hot aggressive fluids where plastic media breaks down.
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Reusability: Metallic filter elements within high-temp housings can often be chemically cleaned or backwashed for multi-cycle use.
Typical Industry Use Cases
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Hot edible oil purification in commercial food production
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Polymer, resin, and asphalt processing
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Boiler condensate polishing and high-pressure steam filtration