Sondex S100, S121, and SF123 plate heat exchangers are widely recognized in global industrial sectors for their high heat transfer efficiency, compact structure, and reliable performance. As critical sealing components of these Sondex models, gaskets directly determine the leak-proof performance, operational stability, and service life of the heat exchanger—especially in harsh industrial environments where media corrosion, temperature fluctuations, and high pressure are common.

We are a professional factory specializing in Sondex plate heat exchanger gaskets, directly supplying high-quality gaskets for Sondex S100, S121, SF123 models. Our gaskets are precision-manufactured to replicate the original Sondex OEM dimensional standards, sealing profiles, and material specifications, ensuring 100% compatibility with S100, S121, SF123 plate heat exchangers. We offer full customization (material, size, thickness, color) to meet your unique application needs, and provide free samples for testing before bulk orders—helping you reduce procurement risks and ensure perfect fit. Unlike middlemen-supplied gaskets, our factory-direct supply eliminates extra markup, offering competitive pricing while guaranteeing consistent quality and fast delivery.

• Models: Sondex S100, Sondex S121, Sondex SF123 (direct replacement for original Sondex heat exchangers)
• Product Type: Plate heat exchanger gasket (industrial-grade, factory direct supply)
• Material Options: • NBR: Oil/fuel/lubricant resistant, suitable for oil & gas, hydraulic, industrial manufacturing
  • EPDM: Weather/ozone/steam resistant, suitable for chemical, HVAC, refrigeration, outdoor applications
  • FKM: High-temperature/chemical resistant, suitable for high-pressure, corrosive media scenarios
• Supply Type: Factory direct supply, customizable, free sample available
• Working Temperature Range: -40°C ~ 200°C (varies by material)
• Maximum Working Pressure: Up to 2.5MPa
• Fit Type: 1:1 OEM exact fit, no modification required; customizable size/thickness available
• Application: Industrial heat exchange, oil & gas, chemical processing, HVAC, refrigeration, food & beverage, general manufacturing

• Factory Direct Supply & Competitive Pricing: As a professional gasket manufacturer, we supply directly to customers without middlemen, eliminating extra profit markup. Our Sondex S100/S121/SF123 gaskets offer 30%-40% lower pricing than original Sondex parts and middlemen-supplied products, while maintaining OEM-level quality—helping you reduce procurement costs significantly.
• Exact OEM Fit for Sondex S100/S121/SF123: Precision manufactured with ±0.05mm dimensional tolerance, perfectly matching the original Sondex S100, S121, SF123 gasket’s size, groove position, and sealing profile. 100% compatible with all Sondex S100/S121/SF123 plate heat exchanger models, ensuring seamless replacement and stable operation without any modifications.
• Premium Multi-Material Options (NBR/EPDM/FKM): • NBR: High-nitrile nitrile butadiene rubber (nitrile content 28%-40%), superior resistance to oil, fuel, lubricants, and mild corrosive media; ideal for oil-based industrial applications.
  • EPDM: High-grade ethylene propylene diene monomer, excellent resistance to ozone, UV, steam, and mild chemicals; perfect for HVAC, refrigeration, water treatment, and outdoor scenarios.
  • FKM: Fluorocarbon rubber, exceptional high-temperature (up to 200°C) and strong chemical resistance; suitable for corrosive media, high-pressure, and extreme industrial scenarios.
• Full Customization for Diverse Needs: Beyond standard OEM replacement, we offer full customization to match your specific application requirements: material selection (NBR/EPDM/FKM), thickness (1.5mm-3mm), size adjustment (for Sondex sub-models), color (for easy maintenance identification), and packaging (OEM branding available). Whether you need a standard gasket or a custom solution, we can deliver perfectly.
• Free Sample for Testing: We provide free full-size samples (1-2 sets per customer) for S100/S121/SF123 gaskets, allowing you to test dimensional accuracy, fit, sealing performance, and material quality on your Sondex heat exchanger before placing bulk orders—reducing procurement risks and ensuring satisfaction.
• Superior Sealing & Durable Performance: Optimized sealing lip design fits Sondex plate grooves closely, eliminating fluid leakage (oil, water, steam, chemicals) even under high pressure and frequent thermal cycles. Made of pure raw materials with anti-aging, anti-swelling, and anti-deformation additives, our gaskets resist wear, corrosion, and extreme temperatures. Under standard operating conditions, service life is 4-6 years—50% longer than generic gaskets.
• Global Industrial Compliance & Safety: All Sondex S100/S121/SF123 gaskets meet ISO 9001:2015, CE, RoHS, and FDA (food-grade optional) certifications. Non-toxic, odorless, and free of harmful additives, ensuring safety, environmental friendliness, and compatibility with global industrial regulations.

Our Factory Supply Sondex Plate Heat Exchanger Gasket S100/S121/SF123, with multi-material options, full customization, and factory-direct quality, is tailored for all Sondex S100, S121, SF123 plate heat exchanger systems, adapting to diverse industrial sectors where reliable sealing and cost-effectiveness are critical. Key applications include:

• Oil & Gas Industry: Crude oil cooling, lubricating oil heat exchange, offshore platform heat exchangers (NBR for oil resistance; FKM for high-temperature/high-pressure scenarios).
• Chemical Processing: Acid/alkali solution heat exchange, chemical reagent cooling/heating (EPDM for mild chemicals; FKM for strong corrosion; NBR for oil-containing media).
• HVAC & Refrigeration: Industrial chiller units, central air conditioning, cold storage heat exchange (EPDM for weather resistance and refrigerant compatibility; NBR for oil-based refrigerants).
• Food & Beverage: Milk pasteurization, juice cooling, brewery fermentation (FDA-compliant NBR/EPDM options, non-toxic and resistant to food acids).
• General Industrial Manufacturing: Machine tool cooling, gearbox oil cooling, production line thermal management (material selected based on fluid type and operating conditions).
• High-Temperature/Corrosive Applications: Boiler feed water heat exchange, chemical reactor cooling, high-pressure steam systems (FKM for extreme conditions).

As a professional factory specializing in Sondex plate heat exchanger gaskets, we focus on Sondex S100/S121/SF123 model expertise, premium material selection, factory-direct supply, and customer-centric service—standing out in the industry with reliable quality, competitive pricing, and flexible solutions. Here’s why global industrial customers trust us for their Sondex gasket needs:

• Sondex Expertise & Exact Fit Guarantee: Our engineering team has over 15 years of experience with Sondex plate heat exchangers, especially S100, S121, SF123 models. We use 3D scanning and reverse engineering technology to replicate the original Sondex gasket’s sealing profile, groove structure, and dimensional standards. Every gasket undergoes strict dimensional inspection (CMM coordinate measuring machine) to ensure 100% compatibility with S100/S121/SF123 systems, eliminating installation failures.
• Factory Direct Supply & Cost Advantage: We own a professional production facility with advanced molding equipment, raw material processing lines, and quality control systems. Vertical manufacturing (raw material sourcing → gasket molding → quality testing) eliminates middlemen, allowing us to offer high-quality Sondex gaskets at 30%-40% lower cost than original Sondex parts and middlemen suppliers—without compromising quality.
• Strict Raw Material Selection & Rigorous Quality Testing: We source high-grade NBR, EPDM, FKM raw materials from top global suppliers (e.g., Arlanxeo, Kuraray, DuPont), conducting strict incoming inspections to verify material purity, chemical resistance, tensile strength, and temperature tolerance. Every batch of S100/S121/SF123 gaskets undergoes 7+ strict quality tests: dimensional accuracy, tensile/tear strength, chemical resistance, high-temperature/low-temperature cycle, sealing performance, aging resistance, and leakage testing. We adhere to ISO 9001:2015 quality standards, ensuring consistent performance across all products.
• Full Customization & Free Sample Service: We offer comprehensive customization options to meet your unique needs: material selection (NBR/EPDM/FKM), thickness, size, color, and packaging (OEM branding). Most importantly, we provide free full-size samples for S100/S121/SF123 gaskets, allowing you to test fit and performance before bulk orders—reducing your procurement risks and ensuring satisfaction.
• Fast Delivery & Flexible MOQ: We have sufficient stock for standard S100/S121/SF123 gaskets, ensuring delivery in 5-7 working days. For custom gaskets, lead time is 10-15 working days. We offer flexible MOQ: 10 sets for standard orders, 5 sets for small-batch testing, and even 1-2 sets for sample verification—meeting your diverse procurement needs, whether for large-scale projects or emergency maintenance.
• 24/7 Professional Technical Support: Our dedicated technical team provides round-the-clock support to help you select the right material (NBR/EPDM/FKM) for your Sondex S100/S121/SF123 system, including material compatibility advice, installation guidance, and troubleshooting. We also offer after-sales service to resolve any issues during use, ensuring a worry-free procurement experience.
• Proven Industrial Track Record: We have supplied Sondex S100/S121/SF123 gaskets to 800+ global industrial customers, including leading oil & gas companies, Sondex equipment distributors, chemical plants, and industrial maintenance service providers. Our gaskets have been tested and proven to reduce replacement frequency by 50% and procurement costs by 35%, earning widespread recognition for their reliability, fit, and cost-effectiveness.

Quality is the core of our factory’s development. Our Factory Supply Sondex Plate Heat Exchanger Gasket S100/S121/SF123 is manufactured in a state-of-the-art facility equipped with precision molding equipment, material testing laboratories, and strict quality control systems. We implement full-process quality management, from raw material incoming inspection to gasket molding, testing, and shipping, ensuring every gasket meets the highest quality standards for Sondex S100/S121/SF123 plate heat exchangers.

We strictly adhere to international industrial standards and hold the following certifications to ensure product reliability and compliance: • ISO 9001:2015: Quality management system certification.
• CE: European conformity certification (compliant with EU industrial safety standards).
• RoHS: Restriction of Hazardous Substances certification (eco-friendly, non-toxic materials).
• FDA 21 CFR Part 177.2600: Food-contact safety certification (for food-grade NBR/EPDM gaskets).
• ASTM D412/D413: Tensile/tear strength testing certification for rubber materials.
• ISO 1817: Chemical resistance certification for rubber materials.

We tailor our Factory Supply Sondex S100/S121/SF123 Plate Heat Exchanger Gasket to meet your unique industrial needs with flexible customization options:

• Material: NBR (oil resistant), EPDM (weather/steam resistant), FKM (high-temperature/chemical resistant); food-grade (FDA-compliant) options available for food & beverage applications.
• Thickness: Standard 2mm, customizable 1.5mm-3mm (precision tolerance ±0.1mm) to perfectly match Sondex S100/S121/SF123 plate groove depths.
• Size: Fully customizable to match Sondex S100/S121/SF123 sub-models, ensuring 1:1 OEM fit without modification.
• Color: Standard black (industrial), white (food-grade), or custom colors (red, blue, green, etc.) upon request for easy identification during maintenance.
• Packaging: Standard industrial packaging (10/50 sets/box), OEM branded packaging with your logo, or bulk packaging for large orders.
• Quantity: MOQ 10 sets for standard orders, small-batch testing available (5 sets minimum), free samples (1-2 sets per customer) for verification.

Yes. Our Sondex S100/S121/SF123 gaskets are precision-manufactured to match the original Sondex OEM dimensional standards, sealing profile, and groove position. They fit all Sondex S100, S121, SF123 plate heat exchanger models without any modifications, ensuring a seamless replacement process and consistent performance with original Sondex gaskets—while offering factory-direct pricing and free samples.

Choose based on your operating environment and working media: • NBR: Ideal for oil & gas, hydraulic systems, or applications involving oil, fuel, lubricants, or mild corrosive media.
• EPDM: Best for HVAC, refrigeration, water treatment, outdoor applications, or scenarios involving steam, mild chemicals, or ozone exposure.
• FKM: Suitable for high-temperature (up to 200°C), high-pressure, or corrosive media scenarios (e.g., chemical processing, high-temperature steam systems). Our technical team can help you select the perfect material based on your Sondex system’s operating parameters and media type.

Yes. We offer free full-size samples (1-2 sets per customer) for Sondex S100/S121/SF123 gaskets. You only need to contact our team to confirm your model and material requirements, and we will ship the samples for free (shipping cost may apply for some regions). The free sample service allows you to test dimensional accuracy, fit, and performance on your Sondex heat exchanger before placing bulk orders.

Our MOQ is flexible to meet different customer needs: • Standard gaskets (NBR/EPDM/FKM) for S100/S121/SF123: MOQ 10 sets.
• Food-grade or complex custom gaskets: MOQ 50 sets.
• Small-batch testing: 5 sets minimum.
• Free samples: 1-2 sets per customer (for verification only).

Delivery time depends on order type and quantity: • Standard stock gaskets (S100/S121/SF123, NBR/EPDM): 5-7 working days.
• Custom gaskets (material, size, thickness customization): 10-15 working days.
• Free samples: 3-5 working days (after confirming requirements). We work with global logistics partners to ensure fast and reliable delivery to your location.

Yes. We offer OEM packaging and branding services to meet your business needs. We can print your logo, company name, product information, and model details (S100/S121/SF123) on the packaging, helping you build your brand identity and meet your distribution requirements.

Service life depends on operating conditions and material selection, but under standard industrial conditions: • NBR: 3-4 years (oil-based applications).
• EPDM: 4-5 years (weather/steam-based applications).
• FKM: 5-6 years (high-temperature/corrosive applications). In harsh operating conditions, the service life is 2-3 years—50% longer than generic gaskets. Regular cleaning and inspection can further extend service life by 2-3 years.

Yes. We provide FDA-compliant food-grade NBR and EPDM gaskets for Sondex S100/S121/SF123 heat exchangers in food & beverage, pharmaceutical, and dairy applications. These gaskets are non-toxic, odorless, and resistant to food acids, cleaning agents, and sanitizers, meeting strict food-contact safety standards. Free samples are also available for food-grade gaskets.

Absolutely. We support full size and thickness customization for Sondex S100/S121/SF123 sub-models. Simply provide the specific dimensions, groove depth, or original gasket sample, and our engineering team will design and produce custom gaskets that perfectly match your sub-model—ensuring 100% compatibility and seamless replacement.

Our core advantages are factory direct supply (lower pricing), 100% OEM fit, free sample testing, full customization, and strict quality control. Unlike middlemen, we have direct control over production and quality, ensuring consistent performance and fast delivery. We also offer 24/7 technical support and after-sales service, providing a one-stop procurement solution for your Sondex S100/S121/SF123 gasket needs.

Ready to get factory-direct Sondex S100/S121/SF123 plate heat exchanger gaskets with free samples and customization options? Contact our team today to discuss your requirements, request free samples, or get a personalized quote. Our technical experts will help you select the perfect material and specifications, ensuring reliable sealing performance, cost savings, and long-term operational stability for your Sondex heat exchanger.