Funke Plate Heat Exchanger Sealing Black Rubber Strip Washer Gasket Ring-for Mat Seal

Our Funke plate heat exchanger sealing gaskets are precision-engineered, 100% interchangeable replacement sealing spare parts, exclusively designed for the full range of Funke gasketed plate heat exchangers (PHEs). Molded from high-performance black rubber materials, perfectly matched with Funke's original mat seal structure, our gaskets deliver industry-leading leak-proof sealing performance, excellent temperature and pressure resistance, and superior anti-aging properties.

It is the ideal cost-effective replacement solution for original Funke heat exchanger gaskets, fully compliant with ISO 9001, PED 2014/68/EU, RoHS 2.0, REACH international standards, and widely used in HVAC, food & beverage, chemical, marine, power, and general industrial fields worldwide.

• All gaskets are 1:1 molded based on original Funke official drawings and high-precision 3D laser scanning data of genuine gaskets, with fully consistent dimensions, sealing groove contour, positioning holes, and buckle structure, perfectly adapted to Funke's original mat seal system.
• Direct installation without any modification to the original Funke plate, frame, or tightening parameters, can be mixed with original Funke gaskets and plates in the same unit, with zero installation risk and zero leakage hidden danger.
• Fully compatible with Funke's mainstream clip-on (snap-in) and glue-on installation types, consistent with the original installation process, no special tools required, greatly reducing on-site replacement and maintenance costs.

• Adopt imported premium black rubber raw materials, proprietary anti-aging formula optimized for Funke mat seal working conditions, with compression set ≤20% (compliant with ISO 815 standard), 30% better than the industry average, maintaining stable sealing compression under long-term cyclic temperature and pressure shocks.
• Multi-stage sealing lip design with pressure relief guide grooves, effectively preventing internal leakage, external leakage, and cross-contamination of cold and hot media, ensuring the safety and stability of industrial processes.
• The black rubber formula has excellent ozone resistance, UV resistance, hydrolysis resistance, and aging resistance, passing 2000+ hours of continuous working condition simulation tests, effectively extending the service life by 30-50% compared with ordinary replacement gaskets.

• Full range of material options cover a continuous operating temperature range from -40℃ to +200℃, design pressure up to 4.0MPa, perfectly adapting to Funke heat exchangers under harsh working conditions such as high temperature, high pressure, and corrosive media.
• All materials strictly comply with EU RoHS 2.0 and REACH SVHC environmental protection regulations; food-grade options have passed FDA 21 CFR 177.2600 and EU 1935/2004 food contact material safety certification, suitable for sanitary food and pharmaceutical working conditions.
• Excellent medium corrosion resistance, compatible with water, steam, weak acid and alkali, mineral oil, organic solvents, seawater and other media, covering more than 90% of industrial heat exchange scenarios.

• Adopt high-precision CNC vulcanization molding equipment, with strict dimensional tolerance control of ±0.05mm, ensuring consistent size, thickness, and sealing lip height of each gasket, uniform compression distribution, no local overpressure or underpressure defects.
• Full-process production traceability management, from raw material incoming inspection, mixing, vulcanization, trimming to finished product inspection, all links are controllable, eliminating burrs, lack of glue, bubbles, dimensional deviation and other defects.
• Each batch of products undergoes strict appearance inspection, 100% dimensional full inspection, hardness test, compression set test and aging test before delivery, ensuring that all factory products meet international quality standards.

Our gaskets are fully compatible with the full range of Funke gasketed plate heat exchanger models, including but not limited to:

• FP Series: FP10, FP16, FP20, FP22, FP31, FP40, FP50, FP60, FP65, FP80, FP100, FP120, FP160, FP200, FP250, FP310
• FN Series: FN08, FN12, FN15, FN20, FN25, FN30, FN40, FN50, FN65, FN80, FN100, FN120, FN150
• FS Series: FS10, FS15, FS20, FS25, FS30, FS40, FS50, FS60, FS80, FS100, FS120, FS150, FS200
• FK/FKD Series: FK20, FK30, FK40, FK50, FK65, FK80, FK100, FKD20, FKD30, FKD40, FKD50
• FX Series: FX12, FX20, FX30, FX40, FX50, FX65, FX80, FX100, FX120, FX150
• S Series: S19, S21, S35, S41, S50, S65, S85, S100, S121, S188

• HVAC & District Energy: Central heating & cooling, chilled water circulation, heat pump systems, district energy stations, industrial waste heat recovery
• Food & Beverage & Pharmaceutical: Milk pasteurization, beer brewing, juice concentration, CIP cleaning systems, pharmaceutical sterile heat exchange
• Chemical & Petrochemical: Acid & alkali circulation, solvent heating & cooling, petrochemical process heat exchange, flue gas desulfurization
• Marine & Offshore Engineering: Seawater cooling, engine jacket water cooling, offshore platform heat exchange systems, marine HVAC
• Power & Renewable Energy: Power plant cooling systems, boiler feed water heating, geothermal energy heat exchange, waste heat recovery
• General Industry: Machine cooling, lubricating oil cooling, water treatment, electroplating bath temperature control

We have more than 18 years of R&D and production experience in plate heat exchanger sealing components, with a dedicated technical team focusing on Funke series products. We have a complete digital drawing library of full-series Funke gaskets, with more than 200 sets of mature Funke-specific molds. All products are strictly manufactured in accordance with original Funke specifications, guaranteeing 100% interchangeability, zero installation risk, and zero leakage hidden danger.

We adopt imported premium rubber raw materials, with a proprietary anti-aging formula optimized for Funke's mat seal structure. Our gaskets have a compression set of ≤20%, 30% better than the industry average, ensuring long-term stable sealing performance even under cyclic temperature and pressure shocks. All black rubber formulas have passed 2000+ hours of continuous aging testing, effectively extending the service life by 30-50% compared with ordinary replacement gaskets.

We have established a strict quality management system in accordance with ISO 9001, with full traceability from raw material incoming to finished product shipment. All raw materials are sourced from internationally renowned rubber suppliers, with complete material certification. Our products fully comply with PED, CE, RoHS, REACH, FDA and other international standards, meeting the access requirements of the European, North American, Southeast Asian, Middle Eastern and other global markets.

We cover all common and special material options for Funke heat exchanger gaskets, and are compatible with almost all Funke plate heat exchanger models on the market. We can provide matching heat exchanger plates, special gasket glue, installation tools, on-site installation guidance, and maintenance technical support, providing you with a one-stop solution for Funke heat exchanger maintenance and replacement.

We have a complete global supply chain system, with a large stock of standard Funke models and common materials, ensuring fast delivery of sample and bulk orders. We have stable cooperative international logistics channels, exporting to more than 60 countries and regions around the world, and can provide door-to-door delivery services to meet your urgent procurement and maintenance needs.

Our professional technical team provides 7*24 hours online service, which can quickly respond to your material selection, model matching, installation, maintenance and other technical problems. We can provide customized solutions according to your specific working conditions, including custom material formula, installation structure, and non-standard model mold opening, to meet your personalized needs.

Our Funke series gaskets have the same or even better performance and service life as the original Funke products, but the price is only 30-50% of the original, which greatly reduces your heat exchanger maintenance and replacement cost. At the same time, our long-life anti-aging design reduces the frequency of replacement and equipment shutdown loss, further reducing your total cost of ownership throughout the product life cycle.

Yes. All our Funke series gaskets are 1:1 molded based on original Funke official drawings and high-precision 3D laser scanning data, with fully consistent dimensions, sealing groove structure, positioning design, and buckle structure. They are perfectly compatible with Funke's original mat seal system, can be directly installed without any modification, and can be mixed with original Funke gaskets in the same heat exchanger unit.

We provide a full range of high-performance black rubber materials, including standard EPDM, food-grade EPDM, NBR, HNBR, FKM/Viton, and Butyl rubber, covering operating temperature from -40℃ to +200℃, design pressure up to 4.0MPa. All materials comply with EU RoHS 2.0 and REACH standards, and food-grade options have passed FDA and EU food contact safety certification. Our technical team will recommend the optimal material based on your working medium, temperature, and pressure parameters.

Clip-on (snap-in) gaskets have built-in positioning buckles, which can be directly snapped into the plate sealing groove without glue, making installation and replacement faster and more convenient, and is the mainstream design for Funke mat seal structure. Glue-on gaskets need to be fixed with special heat exchanger glue, suitable for older Funke models or special working conditions. We provide both installation types, fully consistent with the original Funke design.

Our MOQ is 1 piece, and we fully support sample orders for testing and verification before bulk purchase. For standard Funke models and common materials (EPDM/NBR), the sample lead time is 2-5 working days, and bulk order lead time is 7-15 working days. For special materials and custom non-standard models, the lead time will be confirmed according to the specific mold opening and production requirements.

We have a strict ISO 9001 quality management system, and each batch of gaskets undergoes 6 core inspection procedures:

1. Raw material incoming inspection (formula composition, physical properties)
2. Mold precision verification before each production run
3. 100% dimensional full inspection after vulcanization
4. Appearance inspection (no bubbles, burrs, or defects)
5. Hardness test, compression set test, and aging test
6. Final factory inspection before shipment

We provide a complete quality inspection report with each shipment.

Yes. We provide a 12-month quality warranty for all our gaskets under normal operating conditions in accordance with the recommended material selection. During the warranty period, if there is any quality problem such as non-human-induced sealing failure, abnormal aging, or dimensional deviation, we will provide free replacement or corresponding compensation according to the actual situation.

Yes. We support full OEM and ODM custom services. You can provide us with the original gasket drawing, physical sample, or complete heat exchanger model, and our professional R&D team will complete mold design, production, and performance testing to ensure 100% matching with your Funke heat exchanger's mat seal structure.

Yes. We can provide 100% interchangeable stainless steel plates for all Funke heat exchanger models, perfectly matched with our gaskets. We can provide a one-stop solution of plate + gasket complete set for your heat exchanger maintenance and replacement, reducing your procurement cost and communication time.