• Sintered SiC: We use high-grade Sintered Alpha SiC for maximum hardness and chemical inertness, ensuring reliability in aggressive industrial effluents.
• Positive Drive Bellow: The elastomer bellow friction-drives the rotary face, eliminating drive pins that can corrode in sewage environments.
Key Features
• Submersible Upgrade: Upgrades standard Flygt submersible pump seals to Silicon Carbide (SiC) faces for superior abrasion resistance in sewage and slurry.
• Plug-in & Griploc Compatible: Engineered to fit the specific seal chambers of Flygt 2000, 3000, and N-series pumps.
• Chemical Resistance: When paired with FKM bellows, this seal handles industrial wastewater containing chemicals that would degrade standard NBR/Ceramic seals.
Product Specifications
Sic Physical Property | |||
Technical Parameter | Unit | Sic | Ssic |
Hardness | HS | 110 | 115 |
Porosity Rate | % | <0.3 | <0.2 |
Density | g/cm³ | 3.00-3.05 | >3.1 |
Compressive Strength | MPa | ≥2200 | ≥2500 |
Fractural Strength | MPa | ≥350 | ≥380 |
Coefficient Of Heat Expansion | 10⁻⁶/℃ | 4 | 4.2 |
Content of Sic | % | ≥90 | ≥98 |
Content of Free Silicone | % | ≤10 | ≤1 |
Elastic Modulus | GPa | ≥400 | ≥410 |
Temperature | ℃ | 1300 | 1400 |
Workshop
This workshop is equipped with professional processing equipment and integrated with standardized material warehousing management, enabling a one-stop production process from precision machining to finished product delivery. It ensures part machining accuracy and production efficiency, meeting various high-specification manufacturing requirements.
Product Research, Development and Testing
Our Product R&D and Testing focuses on optimizing seal performance through advanced simulation and material analysis. All seals undergo rigorous trials, including thermal cycling and pressure tests, to ensure durability, minimal leakage, and long service life in demanding industrial environments.
Industry Solutions
Case Study
Industrial Sump: An automotive plant sump pump (Flygt 3127) failed due to oily wastewater swelling the NBR bellows. We supplied this SiC/FKM upgrade. It resisted the oil and grit, solving the chronic failure.
Testimonials
We use these SiC/FKM seals for all our industrial customers. It turns a standard sewage pump into a light chemical pump capable of handling grit.
—Industrial Pump Distributor, Germany
FAQs about Metal Bellows Seals for High Temperature Pumps
Q: Can I mix this with the original upper seal?
A: Yes, you can use our SiC lower seal (in the sewage) with an original Carbon/Ceramic upper seal (in the oil bath), provided they are physically separate units.
Our company is specialized in the production of sealing materials, mechanical seals , cartridge seals.
E-mail: gechacha@aliyun.com
Mobile: +86-18758835650
WhatsApp: +86-18758835650
Add: No8-2, Jinsha road Yuelin Street, Fenghua District, Ningbo, Zhejiang
