Core Definition
Flat-pressed high-temperature filter cartridges adopt end-face compression sealing. The equipment cover plate or compression device presses directly against the filter cartridge end face to form a seal, without complex connection structures such as threads, chucks and tie rods. Featuring an extremely simple structure, this type is suitable for small-sized equipment, compact spaces or high-temperature printing upgrading and renovation of old equipment.
This product uses high-temperature resistant glass fiber or ceramic fiber filter media with an operating temperature range of 150–260℃. It achieves F9-H13 filtration grades in compliance with EN 1822 / ISO 16890 standards. The flat-pressed design enables extremely simple filter replacement under high-temperature conditions; operation only requires loosening the compression device, making it ideal for R&D scenarios with frequent replacement demands.
Core Technical Advantages
Ultra-simple mounting structure: No complex connections, sealed merely by end-face compression from the hold-down device. Filter replacement under high temperatures only needs releasing the compressor, which is easy to operate and especially applicable to equipment with limited internal space.
High-temperature resistant sealing gaskets: End-face sealing adopts high-temperature resistant graphite composite gaskets or ceramic fiber gaskets, which can withstand temperatures of 260–500℃ without decomposition or leakage at high temperatures.
High-temperature resistant filter media system: Constructed with high-temperature glass fiber (200℃) or ceramic fiber (260℃) media bonded by high-temperature hot melt adhesive, and fitted with stainless steel end caps.
Space-saving compact design: The flat-pressed structure requires no reserved space for rotation or wrench operation, perfectly suited for high-temperature renovation projects of equipment with severely limited internal space.
Working Condition Matching Table
| Application Scenarios | Operating Temperature | Sealing Gasket | Filtration Grade | Media Type | Recommended Replacement Cycle |
| Compact High-Temperature Filtration Units | 120–180℃ | Graphite Gasket | H13 | Glass Fiber | 800–1200 h |
| High-Temperature Upgrade for Legacy Equipment | 150–200℃ | Ceramic Fiber | H13 | Ceramic Fiber | 800–1000 h |
| Small EBM Equipment | 180–250℃ | Graphite Gasket | H13 | Ceramic Fiber | 600–1000 h |
Application Fields
Small High-Temperature Printing Equipment
High-Temperature Upgrading & Renovation of Legacy Equipment
Applicable Printing Materials:
Titanium Alloy (High-Temperature Preheating)
Stainless Steel (High-Temperature Process)
Special Alloy R&D Tests
Case & Data Verification
Case: High-Temperature Upgrade of Legacy SLM Equipment in a University Laboratory
A university laboratory needed its outdated SLM machine for 150℃ high-temperature titanium alloy printing. Flat-pressed high-temperature filter cartridges were adopted for renovation with graphite gaskets for end cap sealing, achieving tight sealing after compression by the hold-down device. The filter cartridges remained intact after 800 hours of operation, enabling the lab to complete high-temperature printing tests successfully.
FAQ
Q1: How to control the compression force of flat-pressed high-temperature filter cartridges?
A: The compression device is generally equipped with travel limiters or elastic components; stop compressing once the limit position is reached. Thermal expansion at high temperatures will increase compression force, so avoid over-compression which may deform the end cap.
Q2: How to choose between graphite sealing gaskets and ceramic fiber gaskets?
A: Graphite gaskets withstand up to 500℃ with excellent thermal conductivity, suitable for most high-temperature working conditions; ceramic fiber gaskets resist temperatures up to 1200℃ for ultra-high-temperature applications.
Q3: Are flat-pressed filter cartridges suitable for high differential pressure and high-temperature working conditions?
A: Flat-pressed sealing relies on friction generated by compression force, which may be pushed open under high differential pressure. They are applicable only to medium and low differential pressure conditions. Threaded or flanged connections are recommended for high differential pressure systems.
Q4: What precautions should be taken when using flat-pressed high-temperature filter cartridges for legacy equipment renovation?
A: Verify the flatness of the equipment sealing surface, normal function of the compression device and reliable grounding system. High-temperature PAO leak testing is recommended after installation to verify sealing performance.
